[go: up one dir, main page]

US3331042A - Construction for solenoid devices - Google Patents

Construction for solenoid devices Download PDF

Info

Publication number
US3331042A
US3331042A US439007A US43900765A US3331042A US 3331042 A US3331042 A US 3331042A US 439007 A US439007 A US 439007A US 43900765 A US43900765 A US 43900765A US 3331042 A US3331042 A US 3331042A
Authority
US
United States
Prior art keywords
guide
coil
solenoid
plug
armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US439007A
Inventor
Howard L Erickson
William G Huley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dole Valve Co
Original Assignee
Dole Valve Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dole Valve Co filed Critical Dole Valve Co
Priority to US439007A priority Critical patent/US3331042A/en
Application granted granted Critical
Publication of US3331042A publication Critical patent/US3331042A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding

Definitions

  • the present invention relates to an improved solenoid construction and more particularly relates to a solenoid construction which is designed for underground installation and which must therefore be adapted to resist the deleterious effects of water and corrosive damage encountered there.
  • Solenoids which are adapted to be used for operating solenoid actuated valves such as are employed in underground sprinkling systems and other buried fluid distributing systems must be adequately protected from the deleterious effects of their subterranean environment.
  • the electrical coil must be protected from water seepage and, to the extent possible, all loose part connections should preferably be kept to a minimum. Gasketed structures are not entirely satisfactory due to the possibility of leakage over a period of time at the part-gasket interface.
  • the resultant structure is a one-piece unit having insulated electrical leads protruding therefrom but being otherwise completely protected from the deleterious effects of underground burial.
  • a further object of the present invention resides in the provision of a solenoid construction wherein the armature guide and the associated electrical coil are completely encapsulated within a protective plastic material and in which encapsulation material serves, in turn, to provide a positive fluid seal between the base plate of the solenoid, the armature guide, the electrical coil and its associated parts, and the end plug of the armature guide.
  • Yet another object of the invention is directed to a solenoid construction of the type generally described above wherein means are provided to insure that the bond formed between the encapsulation material and the associated metal parts will not break.
  • the figure is a vertical sectional view taken through a solenoid constructed in accordance with the present invention which solenoid is designed for use in a fluid shut-off valve.
  • the solenoid 10 comprises generally a flat base plate 11 which, for the present purposes, is preferably formed of stainless steel or like corrosion-resistant materials and the base plate has an aperture 12 formed therein.
  • An armature guide 13 extends upwardly through the aperture 12 and has a solenoid coil 14 mounted thereover which, in turn, has a pair of insulated electrical leads 37 extending therefrom and electrically connected therewith.
  • the base of the armature guide 13 has an outwardly directed circular flange 16 formed integrally therewith which engages the undersur- 3,331,942 Patented July 11, 1967 face 17 of the base plate 11 immediately around the aperture 12.
  • An enlarged diameter section 18 of the armature guide 13 leads upwardly from the flange 16 through the aperture 12 and terminates in a horizontally extending inwardly directed annular shoulder 19 which, in turn, terminates in a radially reduced cylindrical guide portion 20.
  • the cylindrical guide portion 20 has a metal plug 21 snugly fitted in the upper end thereof to close that end of the guide and this plug, in turn, has a shading ring 22 fitted within the inner end face thereof for purposes well understood by those skilled in the solenoid art.
  • a threaded shank 23 is formed integrally with the plug 21 and extends upwardly from the upper end face 24 thereof.
  • the coil 14 comprises generally a bobbin 25 having a cylindrical winding section 26 and integral end flanges 27.
  • the bobbin 25 is formed of an insulating plastic material and has a copper wire winding or the like 28 wound on the winding section 26 intermediate the end flanges 27.
  • a C-frame 29 having upper and lower horizontally extending legs 30 and 31, embraces the coil 14 and is fitted over the armature guide so that the guide extends upwardly through an enlarged aperture 32 formed in the base leg 31 thereof and so that the threaded shank 23 of the plug 21 extends upwardly through a diametrically reduced aperture 33 formed in the upper leg 30.
  • the aperture 33 is sufiiciently small so that the under surface of the leg 30 rests on the end' face 24 of the plug 21.
  • the coil 14 is fitted within'the C-frame and the composite structure is then dropped over the armature guide 13. From an assembly standpoint it is sometimes desirable to secure a nut to the shank 23 to positively secure the C-frame and its associated coil 14 on the guide 13 but such is a matter of preference in accordance with the particular manufacturing techniques used and is not under all circumstances necessary. Such a nut is shown in the figure in broken lines.
  • the protective encapsulation material 35 is molded completely around the solenoid parts thus far described and is bonded to the upper surface 36 of the base plate 11, the outer surface of the armature guide 13 (or at least so much thereof as extends above the plate 11), the C-frame 29, the outer windings of the coil 28, the bobbin 25, and the exposed surfaces of the plug 21 including the threaded shank 23.
  • a pair of insulated electrical leads 37 extend from the coil 28 through the encapsulation material 35 and the properties of the encapsulation material 35 and the insulating material for the leads 37 are preferably selected so that a positive bond will be formed therebetween during the encapsulation-molding operation.
  • the resulting structure is a one-piece unit which is completely sealed against the elements and the electrical coil is completely protected from damage by water seepage both from within the associated valve structure (and from within the armature guide itself) and from without.
  • the encapsulation material is bonded both to the face section of the armature guide 13 and the base plate 11 to prevent water seepage to the coil from within the valve at point 38 and encapsulation material bonded to the plug 21 and upper end of the armature guide prevents any seepage to the coil from within the guide about the point 39.
  • the base plate 11 is preferably formed of stainless steel and the armature guide may be formed of any suitable material which will resist the corrosive effects of the water or other fluid medium to which its interior walls may be exposed and which material will provide a positive bond with the epoxy or other encapsulating material employed.
  • an armature A of a well known configuration is shown mounted for slidable movement in the guide 13 and as being biased into part-closing engagement with a valve seat by a conically configurated spring S which has one end seated on the shoulder 19 and its opposite end seated on a spring retainer R mounted on the outer end of armature A.
  • a stop plug positioned in one end of said guide and having a portion extending therefrom;
  • a stop plug positioned in one end of said guide and having a portion extending therefrom;
  • an armature guide extending upwardly through said aperture and having an outwardly extending flange about one end thereof engaging the under surface of said plate;
  • a stop plug positioned in one end of said guide and having a portion extending therefrom;
  • armature guide extending upwardly through said aperture and having an outwardly extending flange formed about one open end thereof engaging the under surface of said plate;
  • said material is bonded directly to the upper surface of said plate and to said guide and to the exposed portions of said coil and said plug and to the coil-connected ends of said leads;
  • said material covers the end of said armature guide about its line of contact with said plug whereby to insure a positive fluid-tight seal between said plug and said guide.
  • a base plate formed of an anti-corrosive metal and having an aperture formed therein;
  • armature guide formed of a corrosion-resistant material extending upwardly through said aperture and having an outwardly extending flange formed at one end thereof and engaging the under surface of said plate;
  • said material provides a seal between said armature guide and said plug and between said armature guide and said plate, respectively, along the line of contact between the respective parts.
  • a solenoid assembly constructed in accordance with claim 5 wherein one of said plate and said insulating material has a projection extending therefrom along the interface between the material and the plate and wherein the other of the plate and insulating material has a complementary projection-receiving aperture formed therein whereby to prevent relative rotation between the insulating material and said plate.
  • an armature guide extending upwardly through said aperture and having an outwardly extending flange about one end thereof engaging the under surface of said plate;
  • said material is bonded directly to the upper surface of said plate and to said guide and to the exposed portions of said coil and to the coil-connected ends of said leads;
  • one of said plate and said insulating material has a projection extending therefrom along the interface between the material and the plate and wherein the other of the plate and insulating material has a complementary projection-receiving aperture formed therein whereby to prevent relative rotation between the insulating material and said plate.
  • a solenoid including:
  • a stop plug positioned in one end of said guide and having a portion extending therefrom;
  • the improvements therein comprising, an electrically non-conductive impervious material completely surrounding the exterior of said guide and said coil and said coil ends of said lead wires and the extended portion of said stop plug and bonded thereto to fixedly secure the position of said guide and said coil and the coil ends of said lead wires and the extended portion of said stop plug to prevent relative movement therebetween.
  • the solenoid of claim 8 further including a base plate having an aperture formed therein for surrounding said guide opposite the end receiving said plug; and a magnetic frame surrounding at least a portion of said electrical coil and embracing said guide and said stop plug, whereby said electrically non-conductive impervious material fixedly secures the position of said base plate and said frame to prevent relative movement between said guide, said coil, and the coil ends of said lead wires, the external portion of said stop plug, said base plate, and said frame.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Description

July 11, 1967 H. L. ERICKSON ETAL 3,331,042
' I CONSTRUCTION FOR SOLENOID DEVICES Filed March 11, 1955 INVENTOR. b aweo A. Te/c'mo/v ATTORNEYS United States Patent 3,331,042 CONSTRUCTION FUR SOLENOID DEVICES Howard L. Erickson, Bensenviile, and William G. Holey, Palatine, Ill., assignors to The Dole Valve Company, Morton Grove, Ill., a corporation of Illinois Filed Mar. 11, 1965, Ser. No. 439,007 9 Claims. (Cl. 335260) The present invention relates to an improved solenoid construction and more particularly relates to a solenoid construction which is designed for underground installation and which must therefore be adapted to resist the deleterious effects of water and corrosive damage encountered there.
Solenoids which are adapted to be used for operating solenoid actuated valves such as are employed in underground sprinkling systems and other buried fluid distributing systems must be adequately protected from the deleterious effects of their subterranean environment. In particular, the electrical coil must be protected from water seepage and, to the extent possible, all loose part connections should preferably be kept to a minimum. Gasketed structures are not entirely satisfactory due to the possibility of leakage over a period of time at the part-gasket interface.
We have provided a solenoid construction wherein the electrical coil is completely encapsulated in a protective plastic material which, in turn, encapsulates the armature guide and is bonded to the solenoid base plate and the guide as well as the coil in order to insure a positive fluid-tight seal between all of these associated parts. The resultant structure is a one-piece unit having insulated electrical leads protruding therefrom but being otherwise completely protected from the deleterious effects of underground burial.
It is therefore a principal object of the present invention to provide an improved solenoid construction suitably designed for installation in an underground environment or in other environments where water and/or corrosive damage is a problem.
A further object of the present invention resides in the provision of a solenoid construction wherein the armature guide and the associated electrical coil are completely encapsulated within a protective plastic material and in which encapsulation material serves, in turn, to provide a positive fluid seal between the base plate of the solenoid, the armature guide, the electrical coil and its associated parts, and the end plug of the armature guide.
Yet another object of the invention is directed to a solenoid construction of the type generally described above wherein means are provided to insure that the bond formed between the encapsulation material and the associated metal parts will not break.
These and other objects, advantages, and features of the present invention will become apparent from time to time as the following specification proceeds, and with reference to the accompanying drawings, wherein:
The figure is a vertical sectional view taken through a solenoid constructed in accordance with the present invention which solenoid is designed for use in a fluid shut-off valve.
With reference to the drawing, the solenoid 10 comprises generally a flat base plate 11 which, for the present purposes, is preferably formed of stainless steel or like corrosion-resistant materials and the base plate has an aperture 12 formed therein. An armature guide 13 extends upwardly through the aperture 12 and has a solenoid coil 14 mounted thereover which, in turn, has a pair of insulated electrical leads 37 extending therefrom and electrically connected therewith. The base of the armature guide 13 has an outwardly directed circular flange 16 formed integrally therewith which engages the undersur- 3,331,942 Patented July 11, 1967 face 17 of the base plate 11 immediately around the aperture 12. An enlarged diameter section 18 of the armature guide 13 leads upwardly from the flange 16 through the aperture 12 and terminates in a horizontally extending inwardly directed annular shoulder 19 which, in turn, terminates in a radially reduced cylindrical guide portion 20. The cylindrical guide portion 20 has a metal plug 21 snugly fitted in the upper end thereof to close that end of the guide and this plug, in turn, has a shading ring 22 fitted within the inner end face thereof for purposes well understood by those skilled in the solenoid art. A threaded shank 23 is formed integrally with the plug 21 and extends upwardly from the upper end face 24 thereof.
The coil 14 comprises generally a bobbin 25 having a cylindrical winding section 26 and integral end flanges 27. The bobbin 25 is formed of an insulating plastic material and has a copper wire winding or the like 28 wound on the winding section 26 intermediate the end flanges 27. A C-frame 29 having upper and lower horizontally extending legs 30 and 31, embraces the coil 14 and is fitted over the armature guide so that the guide extends upwardly through an enlarged aperture 32 formed in the base leg 31 thereof and so that the threaded shank 23 of the plug 21 extends upwardly through a diametrically reduced aperture 33 formed in the upper leg 30. The aperture 33 is sufiiciently small so that the under surface of the leg 30 rests on the end' face 24 of the plug 21. In assembly, the coil 14 is fitted within'the C-frame and the composite structure is then dropped over the armature guide 13. From an assembly standpoint it is sometimes desirable to secure a nut to the shank 23 to positively secure the C-frame and its associated coil 14 on the guide 13 but such is a matter of preference in accordance with the particular manufacturing techniques used and is not under all circumstances necessary. Such a nut is shown in the figure in broken lines.
The protective encapsulation material 35 is molded completely around the solenoid parts thus far described and is bonded to the upper surface 36 of the base plate 11, the outer surface of the armature guide 13 (or at least so much thereof as extends above the plate 11), the C-frame 29, the outer windings of the coil 28, the bobbin 25, and the exposed surfaces of the plug 21 including the threaded shank 23. A pair of insulated electrical leads 37 extend from the coil 28 through the encapsulation material 35 and the properties of the encapsulation material 35 and the insulating material for the leads 37 are preferably selected so that a positive bond will be formed therebetween during the encapsulation-molding operation.
The resulting structure is a one-piece unit which is completely sealed against the elements and the electrical coil is completely protected from damage by water seepage both from within the associated valve structure (and from within the armature guide itself) and from without. For instance, the encapsulation material is bonded both to the face section of the armature guide 13 and the base plate 11 to prevent water seepage to the coil from within the valve at point 38 and encapsulation material bonded to the plug 21 and upper end of the armature guide prevents any seepage to the coil from within the guide about the point 39. By providing an intimate bond between the insulating skin of the lead wires 37 and the encapsulation material, all possibility of water damage to the coil is eliminated.
The base plate 11 is preferably formed of stainless steel and the armature guide may be formed of any suitable material which will resist the corrosive effects of the water or other fluid medium to which its interior walls may be exposed and which material will provide a positive bond with the epoxy or other encapsulating material employed.
40 which are filled by projections of the epoxy encapsulat ing material during the encapsulation-molding operation so that a twisting action which might tend to relatively rotate the base plate and the encapsulation material will be impeded. By the same token, threading a nut on the shank 23 to maintain the C-frame and its associated coil in. a fixed position relative to the armature guide will also further insure that any forces tending to break the bond at the interface of the encapsulation material and the armature guide-base plate, will not cause such bond breakage.
It will be understood that this embodiment of our invention has been used for illustrative purposes only and that various modifications and variations in the invention may be effected without departing from the spirit and scope of the novel concepts thereof.
For purposes of illustration, an armature A of a well known configuration is shown mounted for slidable movement in the guide 13 and as being biased into part-closing engagement with a valve seat by a conically configurated spring S which has one end seated on the shoulder 19 and its opposite end seated on a spring retainer R mounted on the outer end of armature A.
What we claim is:
1. In a solenoid construction:
an armature guide;
an electrical coil surrounding said guide and having lead wires connected thereto and extending therefrom;
a stop plug positioned in one end of said guide and having a portion extending therefrom; and
an electrically non-conductive impervious material completely surrounding the exterior of said guide and said coil and the coil ends of said lead wires and the extended portion of said stop plug and bonded to the exposed portions of each of said guide, coil, lead wires, and stop plug.
2. In a solenoid construction:
an armature guide formed of stainless steel;
an electrical coil surrounding said guide and having lead wires connected thereto and extending therefrom;
a stop plug positioned in one end of said guide and having a portion extending therefrom; and
an epoxy resin material completely surrounding the exterior of said guide and said coil and the coil ends of said lead wires and the extended portion of said stop plug and bonded to the exposed portions of said guide, coil, lead wires, and stop plug.
3. In a solenoid construction:
a base plate having an aperture formed therein;
an armature guide extending upwardly through said aperture and having an outwardly extending flange about one end thereof engaging the under surface of said plate;
an electrical coil surrounding said guide and having electrical leads connected thereto and extending therefrom;
a stop plug positioned in one end of said guide and having a portion extending therefrom; and
an electrically non-conductive impervious material completely surrounding the exterior of said guide and said coil and the coil ends of said lead wires and the extended portion of said stop plug and bonded to the exposed portions of each of said plate, guide, coil, lead wires, and stop plug.
4. In a solenoid construction:
a base plate having an aperture formed therein;
a cylindrical armature guide extending upwardly through said aperture and having an outwardly extending flange formed about one open end thereof engaging the under surface of said plate;
a cylindrical plug fitted within the opposite open end of said cylindrical armature guide to close that end of the guide;
an electrical coil surrounding said guide and having insulated electrical leads connected thereto and extending therefrom; and
an electrically non-conductive impervious material completely surrounding that portion of said guide extending above the plane of said plate, the inner ends of said leads, said coil, and said plug;
wherein said material is bonded directly to the upper surface of said plate and to said guide and to the exposed portions of said coil and said plug and to the coil-connected ends of said leads; and
wherein said material covers the end of said armature guide about its line of contact with said plug whereby to insure a positive fluid-tight seal between said plug and said guide.
5. In a solenoid construction:
a base plate formed of an anti-corrosive metal and having an aperture formed therein;
a cylindrically shaped armature guide formed of a corrosion-resistant material extending upwardly through said aperture and having an outwardly extending flange formed at one end thereof and engaging the under surface of said plate;
a plug fitted within the opposite open end of said cylindrical armature guide and closing that end of the guide and extending exteriorly of the guide;
an electrically non-conductive bobbin fitted over said guide and having an electrical coil wound thereon;
insulated electrical leads extending from an electrically connected with said coil;
a C-frame embracing said bobbin and coil and having one leg fitted over said armature guide and having another leg fitted on and positively secured to said plug; and
an electrically non-conductive impervious material completely surrounding and bonded to the exposed portions of said guide, bobbin, coil, plug, C-frame, and the upper surface of said base plate;
wherein said material provides a seal between said armature guide and said plug and between said armature guide and said plate, respectively, along the line of contact between the respective parts.
6. A solenoid assembly constructed in accordance with claim 5 wherein one of said plate and said insulating material has a projection extending therefrom along the interface between the material and the plate and wherein the other of the plate and insulating material has a complementary projection-receiving aperture formed therein whereby to prevent relative rotation between the insulating material and said plate.
7. In a solenoid construction:
a base plate having an apertureiformed therein;
an armature guide extending upwardly through said aperture and having an outwardly extending flange about one end thereof engaging the under surface of said plate;
an electrical coil surrounding said guide and having insulated electrical leads connected thereto and extending therefrom; and
an insulating plastic material completely surrounding that portion of said guide extending above the plane of said plate, the inner ends of said leads, and said coil;
wherein said material is bonded directly to the upper surface of said plate and to said guide and to the exposed portions of said coil and to the coil-connected ends of said leads; and
wherein one of said plate and said insulating material has a projection extending therefrom along the interface between the material and the plate and wherein the other of the plate and insulating material has a complementary projection-receiving aperture formed therein whereby to prevent relative rotation between the insulating material and said plate.
8. A solenoid including:
an armature guide;
an electrical coil surrounding said armature guide and having lead wires connected thereto and extending therefrom;
a stop plug positioned in one end of said guide and having a portion extending therefrom;
the improvements therein comprising, an electrically non-conductive impervious material completely surrounding the exterior of said guide and said coil and said coil ends of said lead wires and the extended portion of said stop plug and bonded thereto to fixedly secure the position of said guide and said coil and the coil ends of said lead wires and the extended portion of said stop plug to prevent relative movement therebetween.
9. The solenoid of claim 8 further including a base plate having an aperture formed therein for surrounding said guide opposite the end receiving said plug; and a magnetic frame surrounding at least a portion of said electrical coil and embracing said guide and said stop plug, whereby said electrically non-conductive impervious material fixedly secures the position of said base plate and said frame to prevent relative movement between said guide, said coil, and the coil ends of said lead wires, the external portion of said stop plug, said base plate, and said frame.
References Cited UNITED STATES PATENTS 1,804,462 5/ 1931 Eggleston 251-129 2,394,103 2/ 1946 Rader 317-186 2,619,986 12/ 1952 Goepfrich 251-129 2,978,659 4/ 1961 Wahlgren 336-96 3,043,994 7/ 1962 Anderson et al 336-96 X 3,082,359 3/1963 Mangiafico et al. 317-191 3,262,027 7/1966 Zaleske et al 251-141 X FOREIGN PATENTS 1,358,872 3/ 1964 France.
BERNARD A. GILHEANY, Primary Examiner. G. HARRIS, J 11., Assistant Examiner,

Claims (1)

1. IN A SOLENOID CONSTRUCTION: AN ARMATURE GUIDE; AN ELECTRICAL COIL SURROUNDING SAID GUIDE AND HAVING LEAD WIRES CONNECTED THERETO AND EXTENDING THEREFROM; A STOP PLUG POSITIONED IN ONE END OF SAID GUIDE AND HAVING A PORTION EXTENDING THEREFROM; AND AN ELECTRICALLY NON-CONDUCTIVE IMPERVIOUS MATERIAL COMPLETELY SURROUNDING THE EXTERIOR OF SAID GUIDE AND SAID COIL AND THE COIL ENDS OF SAID LEAD WIRES AND THE EXTENDED PORTION OF SAID STOP PLUG AND BONDED TO THE EXPOSED PORTIONS OF EACH OF SAID GUIDE, COIL, LEAD WIRES, AND STOP PLUG.
US439007A 1965-03-11 1965-03-11 Construction for solenoid devices Expired - Lifetime US3331042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US439007A US3331042A (en) 1965-03-11 1965-03-11 Construction for solenoid devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439007A US3331042A (en) 1965-03-11 1965-03-11 Construction for solenoid devices

Publications (1)

Publication Number Publication Date
US3331042A true US3331042A (en) 1967-07-11

Family

ID=23742905

Family Applications (1)

Application Number Title Priority Date Filing Date
US439007A Expired - Lifetime US3331042A (en) 1965-03-11 1965-03-11 Construction for solenoid devices

Country Status (1)

Country Link
US (1) US3331042A (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447773A (en) * 1965-05-03 1969-06-03 Huber & Cie Ag J Electromagnetic fluid valve having fluid-tight housing for electromagnetic parts
US3448307A (en) * 1966-09-06 1969-06-03 Edwards Co Bell striker reciprocating motor
US3477124A (en) * 1965-10-07 1969-11-11 Joy Mfg Co Method of making an electrical rapper
US3554234A (en) * 1967-12-22 1971-01-12 Westinghouse Air Brake Co Hydraulic directional control valve device
US3593240A (en) * 1969-03-10 1971-07-13 Whirlpool Co Solenoid structure having single sheet metal plunger and/or yoke
US3598360A (en) * 1969-08-27 1971-08-10 Richdel Solenoid valve
US3605054A (en) * 1970-04-07 1971-09-14 Detroit Coil Co Encapsulated alternating current solenoid
US3639870A (en) * 1970-07-10 1972-02-01 Reginald B G Benson Electromagnetic devices
US4087773A (en) * 1976-11-15 1978-05-02 Detroit Coil Company Encapsulated solenoid
EP0005640A1 (en) * 1978-05-22 1979-11-28 Ledex, Inc. Print wire solenoid
US4233583A (en) * 1978-09-22 1980-11-11 Bicron Electronics Company Flux shielded solenoid
US4534539A (en) * 1982-08-20 1985-08-13 Burkert Gmbh Pulsed magnetic valve assembly
US4558293A (en) * 1982-11-25 1985-12-10 Aisin Seiki Kabushiki Kaisha Solenoid assembly
US4570902A (en) * 1984-09-21 1986-02-18 Allied Corporation Evaporation canister flow rate valve
US4682136A (en) * 1985-11-26 1987-07-21 United Technologies Automotive, Inc. Fused covering for an electrical conductor and method for making the fused covering
US4694270A (en) * 1985-04-09 1987-09-15 Diesel Kiki Co. Ltd. Electromagnetic proportional actuator
DE3718445A1 (en) * 1986-06-05 1987-12-23 Lectron Products SOLENOID ARRANGEMENT, PARTICULARLY IN A FLUID CONTROL VALVE
US4788516A (en) * 1987-08-17 1988-11-29 Beta Mfg. Co. Enclosed electromagnetic relay
US4840163A (en) * 1987-01-08 1989-06-20 Colt Industries Inc. Electromagnet, valve assembly and fuel metering apparatus
US5460350A (en) * 1993-02-19 1995-10-24 Aisin Seiki Kabushiki Kaisha Electromagnetic valve device
FR2784439A1 (en) * 1998-10-13 2000-04-14 Peugeot Electrically operated hydraulic valve for mounting on multiple valve block, comprises operating coil, screwed into block, whose plunger acts on three-way ball valve accommodated in block
US6564443B2 (en) * 2000-07-11 2003-05-20 Denso Corporation Method for manufacturing electromagnetic operating apparatus
US20080048810A1 (en) * 2004-10-21 2008-02-28 Hydac Electronic Gmbh Actuating Device
US20100123535A1 (en) * 2008-11-14 2010-05-20 Kayaba Industry Co., Ltd. Solenoid actuator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1804462A (en) * 1928-06-16 1931-05-12 American Radiator Co Valve
US2394103A (en) * 1942-10-20 1946-02-05 Gen Electric Electromagnet
US2619986A (en) * 1949-04-15 1952-12-02 Skinner Chuck Company Readily dismemberable valve assembly for sanitary dispensation of fluid
US2978659A (en) * 1958-01-24 1961-04-04 Electro Engineering Works Moisture-proof winding
US3043994A (en) * 1957-10-11 1962-07-10 Anderson Controls Inc Encapsulated coil and method of making
US3082359A (en) * 1960-01-26 1963-03-19 Peter Paul Electronics Company Solenoid and valve assembly
FR1358872A (en) * 1963-06-07 1964-04-17 Improvements to electromagnetic valves
US3262027A (en) * 1964-04-06 1966-07-19 Automatic Switch Co Solenoid structure and mounting means therefor

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1804462A (en) * 1928-06-16 1931-05-12 American Radiator Co Valve
US2394103A (en) * 1942-10-20 1946-02-05 Gen Electric Electromagnet
US2619986A (en) * 1949-04-15 1952-12-02 Skinner Chuck Company Readily dismemberable valve assembly for sanitary dispensation of fluid
US3043994A (en) * 1957-10-11 1962-07-10 Anderson Controls Inc Encapsulated coil and method of making
US2978659A (en) * 1958-01-24 1961-04-04 Electro Engineering Works Moisture-proof winding
US3082359A (en) * 1960-01-26 1963-03-19 Peter Paul Electronics Company Solenoid and valve assembly
FR1358872A (en) * 1963-06-07 1964-04-17 Improvements to electromagnetic valves
US3262027A (en) * 1964-04-06 1966-07-19 Automatic Switch Co Solenoid structure and mounting means therefor

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447773A (en) * 1965-05-03 1969-06-03 Huber & Cie Ag J Electromagnetic fluid valve having fluid-tight housing for electromagnetic parts
US3477124A (en) * 1965-10-07 1969-11-11 Joy Mfg Co Method of making an electrical rapper
US3448307A (en) * 1966-09-06 1969-06-03 Edwards Co Bell striker reciprocating motor
US3554234A (en) * 1967-12-22 1971-01-12 Westinghouse Air Brake Co Hydraulic directional control valve device
US3593240A (en) * 1969-03-10 1971-07-13 Whirlpool Co Solenoid structure having single sheet metal plunger and/or yoke
US3598360A (en) * 1969-08-27 1971-08-10 Richdel Solenoid valve
US3605054A (en) * 1970-04-07 1971-09-14 Detroit Coil Co Encapsulated alternating current solenoid
US3639870A (en) * 1970-07-10 1972-02-01 Reginald B G Benson Electromagnetic devices
US4087773A (en) * 1976-11-15 1978-05-02 Detroit Coil Company Encapsulated solenoid
EP0005640A1 (en) * 1978-05-22 1979-11-28 Ledex, Inc. Print wire solenoid
DE2953193A1 (en) * 1978-05-22 1980-12-04 Ledex Inc SOLENOID FOR A PRINTED WIRE OF A GRID PRINTER
US4233583A (en) * 1978-09-22 1980-11-11 Bicron Electronics Company Flux shielded solenoid
US4534539A (en) * 1982-08-20 1985-08-13 Burkert Gmbh Pulsed magnetic valve assembly
US4558293A (en) * 1982-11-25 1985-12-10 Aisin Seiki Kabushiki Kaisha Solenoid assembly
US4570902A (en) * 1984-09-21 1986-02-18 Allied Corporation Evaporation canister flow rate valve
US4694270A (en) * 1985-04-09 1987-09-15 Diesel Kiki Co. Ltd. Electromagnetic proportional actuator
US4682136A (en) * 1985-11-26 1987-07-21 United Technologies Automotive, Inc. Fused covering for an electrical conductor and method for making the fused covering
DE3718445A1 (en) * 1986-06-05 1987-12-23 Lectron Products SOLENOID ARRANGEMENT, PARTICULARLY IN A FLUID CONTROL VALVE
US4728916A (en) * 1986-06-05 1988-03-01 Lectron Products, Inc. Solenoid operated fluid control valve
US4840163A (en) * 1987-01-08 1989-06-20 Colt Industries Inc. Electromagnet, valve assembly and fuel metering apparatus
US4788516A (en) * 1987-08-17 1988-11-29 Beta Mfg. Co. Enclosed electromagnetic relay
US5460350A (en) * 1993-02-19 1995-10-24 Aisin Seiki Kabushiki Kaisha Electromagnetic valve device
FR2784439A1 (en) * 1998-10-13 2000-04-14 Peugeot Electrically operated hydraulic valve for mounting on multiple valve block, comprises operating coil, screwed into block, whose plunger acts on three-way ball valve accommodated in block
US6564443B2 (en) * 2000-07-11 2003-05-20 Denso Corporation Method for manufacturing electromagnetic operating apparatus
US20080048810A1 (en) * 2004-10-21 2008-02-28 Hydac Electronic Gmbh Actuating Device
US20100123535A1 (en) * 2008-11-14 2010-05-20 Kayaba Industry Co., Ltd. Solenoid actuator
US8081053B2 (en) * 2008-11-14 2011-12-20 Kayaba Industry Co., Ltd. Solenoid actuator

Similar Documents

Publication Publication Date Title
US3331042A (en) Construction for solenoid devices
US4680543A (en) Pickup having encapsulated electrical and magnetic elements
US4341241A (en) Position indicating valve means
US5538220A (en) Molded solenoid valve and method of making it
US4067541A (en) Water valve operating solenoid
US3598360A (en) Solenoid valve
US5192936A (en) Solenoid
US3082359A (en) Solenoid and valve assembly
CA2859550A1 (en) Double pole - double throw proximity switch
US4131331A (en) Waterproof electrical connector
US3085140A (en) Encapsulated switch
US5026954A (en) Liquid level sensing switch assembly
US3447773A (en) Electromagnetic fluid valve having fluid-tight housing for electromagnetic parts
US10003333B2 (en) Method of manufacturing an enclosed proximity switch assembly
CN110047602B (en) Special rotating speed sensor for main coolant pump of pressurized water reactor nuclear power station reactor and manufacturing method thereof
US6737947B1 (en) Assembly for sealing electrical leads to internal electrical device
US8911652B2 (en) System and method of sealing coil leads during encapsulation
KR100485118B1 (en) Watertight structure and watertight method of 2-way solenoid valve
US2719939A (en) Electromagnetic valve
GB1406035A (en) Electromagnetic devices
KR200299309Y1 (en) Watertight structure of 2-way solenoid valve
KR960006850B1 (en) Solenoid
AU641869B1 (en) Solenoid
US2789784A (en) Gas valve
JPH0441481B2 (en)