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GB1004763A - Snap action fluid pressure actuator - Google Patents

Snap action fluid pressure actuator

Info

Publication number
GB1004763A
GB1004763A GB4085662A GB4085662A GB1004763A GB 1004763 A GB1004763 A GB 1004763A GB 4085662 A GB4085662 A GB 4085662A GB 4085662 A GB4085662 A GB 4085662A GB 1004763 A GB1004763 A GB 1004763A
Authority
GB
United Kingdom
Prior art keywords
piston
pressure
passageway
plunger
spring
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
Application number
GB4085662A
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.)
Vapor Corp
Original Assignee
Vapor Corp
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 Vapor Corp filed Critical Vapor Corp
Publication of GB1004763A publication Critical patent/GB1004763A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/221—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke for accelerating the stroke, e.g. by area increase
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2692—Details comprising pneumatic snap-action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7762—Fluid pressure type
    • Y10T137/7764—Choked or throttled pressure type
    • Y10T137/7768—Pilot controls supply to pressure chamber

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Driven Valves (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)

Abstract

1,004,763. Hydraulic apparatus. VAPOR CORPORATION. Oct. 29, 1962 [Dec.15, 1961], No. 40856/62. Heading F1P. [Also in Division H2] A snap-action differential fluid-pressure actuator comprises a casing 10, 11, 12, two pressure chambers 31, 46 joined by a passageway 45 and two diaphragms 14, 13 responsive respectively to pressures in the chambers, the passageway being opened and closed by the end 39 of a piston 25. When the pressure, supplied to the chamber 31 through a conduit 32, reaches a predetermined amount, the diaphragm 14 forces the piston 25 to the right overcoming the biasing effect of a spring 61, thus opening the passageway 45 and allowing the pressure to operate against the diaphragm 13, so overcoming the biasing effect of a spring 60 and driving a plunger 48 against a switch plunger 51 to operate the switch 52. A ball check valve 73 is provided to seat against a recess 76 and an adjustable stop 74 to close a passageway 69 through the piston 25 while the switch is being actuated. When the pressure supplied through conduit 32 subsequently drops, the spring 61 returns the plunger 25 and stabilizer 65 so that the pressure in chamber 46 drops as it becomes open to the atmosphere through the passageway 69 through piston 25 and vents 72 in the casing 12. The spring 60, thus, returns the plunger 48 to its original position, deactuating the switch 52. In a modification, Fig. 5 (not shown), the plunger 48 protrudes from the casing 11, the piston 25 is elongated with the end-cap of the casing providing the adjustable stop for the ball check valve 73, and the pin 26 is threadedly received in the piston 25.
GB4085662A 1961-12-15 1962-10-29 Snap action fluid pressure actuator Expired GB1004763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15971561 US3106623A (en) 1961-12-15 1961-12-15 Snap action differential actuator

Publications (1)

Publication Number Publication Date
GB1004763A true GB1004763A (en) 1965-09-15

Family

ID=22573702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4085662A Expired GB1004763A (en) 1961-12-15 1962-10-29 Snap action fluid pressure actuator

Country Status (4)

Country Link
US (1) US3106623A (en)
DE (1) DE1296241B (en)
FR (1) FR1340414A (en)
GB (1) GB1004763A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3968729A (en) * 1974-10-29 1976-07-13 United Technologies Corporation Fluid-operated apparatus exhibiting hysteresis effect
US4239979A (en) * 1977-05-12 1980-12-16 Compagnie Generale Des Etablissements Michelin Membrane contactor
US4532390A (en) * 1982-11-17 1985-07-30 Signal Lux S.P.A. Diaphragm pressure switch for controlling small pressure gradients
JPS612221A (en) * 1984-06-14 1986-01-08 本田技研工業株式会社 pressure switch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2320763A (en) * 1941-11-29 1943-06-01 Bendix Aviat Ltd Pilot valve
US2487418A (en) * 1945-09-15 1949-11-08 Bell & Gossett Co Pressure relief valve
US2659381A (en) * 1951-08-17 1953-11-17 Standard Oil Dev Co Pressure amplifying device
DE898322C (en) * 1951-12-25 1953-11-30 Eduard Seyffert Differential pressure switch for electrical switchgear
US2748219A (en) * 1953-02-16 1956-05-29 J D Buchanan Hydraulic pressure operated switch
BE538486A (en) * 1954-05-29
US2786109A (en) * 1954-06-18 1957-03-19 Sheffield Corp Gauging device
US2959352A (en) * 1956-08-13 1960-11-08 Lewis L Cunningham Fuel gas control system

Also Published As

Publication number Publication date
FR1340414A (en) 1963-10-18
DE1296241B (en) 1969-05-29
US3106623A (en) 1963-10-08

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