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US3570714A - Fast charging medical oxygen dispenser - Google Patents

Fast charging medical oxygen dispenser Download PDF

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Publication number
US3570714A
US3570714A US820167A US3570714DA US3570714A US 3570714 A US3570714 A US 3570714A US 820167 A US820167 A US 820167A US 3570714D A US3570714D A US 3570714DA US 3570714 A US3570714 A US 3570714A
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US
United States
Prior art keywords
valve
valve body
storage space
gas
dispensing
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
US820167A
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English (en)
Inventor
Harry D Ferguson
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Individual
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Individual
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Publication date
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Publication of US3570714A publication Critical patent/US3570714A/en
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F16K1/304—Shut-off valves with additional means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/30—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces specially adapted for pressure containers
    • F16K1/307—Additional means used in combination with the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member

Definitions

  • OXYGEN DISPENSER ABSTRACT A fast charging medical oxygen dispenser including a specially designed valve which has a fixed valve seat [52] U.S. Cl 222/3, and a freely movable valve body, In dispensing position the 4 222/402- valve body nests closely within the valve seat with the valve [51] Int. having an extremely small dispensing opening which a]- [50] Field Of Search 137/513, 3; lows the gas to pass from a storage space and then through the 22 /3, g 133F165 valve for dispensing purposes.
  • valve body In fast charging condition the Consulted), 20 valve body is urged somewhat away from the valve seat with the valve body having an enlarged slot which is closed off dur- References C'ted ing the dispensing action, but which is opened when the valve UNITED STATES PATEN body is urged away from the valve seat so that gas can quickly 1,984,375 12/1934 Johnston 222/3 pass through the enlarged slot and into the storage area.
  • This invention relates to a fast charging medical oxygen dispenser and in particular relates to a new and improved valve that is highly useful in the medical oxygen field.
  • the personal oxygen dispensers presently in use basically involve a storage space, normally in the form of a sphere, for the oxygen with a connection being maintained between the storage space and a bicyclelilce valve being provided to obtain a quick dispensing action of the oxygen.
  • a small metering opening of approximately .003 to .004 is provided in a barrier between the storage space and the releasable valve pin of the bicyclelike valve in order to insure the proper control dispensing of the medical oxygen.
  • Yet another object of the present invention is to provide a fast charging medical oxygen dispenser which is relatively low in cost and susceptible to being mass produced.
  • a fast charging and slow dispensing valve which communicates with a storage space for gas
  • the valve comprising a valve housing with a bore that has a somewhat enlarged area adjacent the storage space with the bore being formed in the end of the valve housing remote from the storage space, the bore extending through the housing and into the enlarged area which communicates with the storage space, the bore being closed off at its end by a releasable valve pm.
  • a fixed valve seat is formed in the enlarged area, with the valve seat having an inclined inner surface that is shaped to open away from the dispensing end of the bore.
  • a freely movable valve body is positioned in the enlarged area between the valve seat and the storage space with the valve body having an extremely small dispensing opening which normally allows gas to pass from the storage space and toward the valve pin in a slow dispensing action when the valve body is in a normal position nesting within the valve seat.
  • the valve body has an outer surface which conforms generally to the inner surface of the valve seat to form a seal between the surfaces in the normal position.
  • the valve body may be urged to a retracted position during fast charging, with the valve body moving toward the storage space and away from the valve seat.
  • the valve body has an enlarged slot which is closed off when the valve body is in the normal position, but the slot communicates with the enlarged area and the storage space when the valve body is in retracted position.
  • valve body is normally urged to the normal position by the pressure of gas in the storage area, but the valve body is urged to the retracted position during fast charging when superior gas pressure is applied in a direction from the valve pin toward the valve body. In this way charging gas passes through the enlarged slot and directly into the storage space rather than having to be forced through the extremely small dispensing opening. However, in dispensing the valve body is in its normal position so that the gas is forced to pass through the extremely small dispensing opening in a slow dispensing action. 7 g
  • FIG. 1 is a perspective view of a valve used in the fast charging medical oxygen dispenser embodying the present invention
  • FIG. 2 is a greatly enlarged sectional view taken along the lines 2-2 of FIG. 1;
  • FIG. 3 is a sectional view taken along the lines 3-3 of FIG. 2;
  • FIG. 4 is a perspective view of a freely moveable valve body which is used in the valve of the present invention.
  • FIG. 5 is a fragmentary sectionalview of the valve as it is associated with a portion of the fast charging medical oxygen dispenser of the present invention during the charging operation.
  • FIG. 5 a fast charging medical oxygen dispenser embodying the present invention.
  • the dispenser 10 basically comprises a sphere 12 and a valve 14.
  • the sphere 12 includes a storage space 15 for medical oxygen or other gas, and has the typical heavy, thick walls which are necessary so that a gas under pressure is properly used.
  • neck portion 16 Extending from sphere 12 is a neck portion 16 which is partially threaded at 17.
  • the threads 17 permit the reception of a charging coupling as shown in FIG. 5 and which will be discussed hereinafter.
  • valve 14 is comprised of neck portion 16 from which extends a valve housing 20 having a generally central bore 22 which extends from dispensing end 24 back to a chamber which may be an enlarged area 26 that communicates through bore extension 28 to the storage space 15.
  • a safety plug 30 communicates through passage 32 to the bore 28 in the event normal flow of gas from the storage space 15 toward dispensing end 24 is obstructed.
  • the valve housing 20 is threaded into neck portion 16 by virtue of complementary threads on the housing and the neck portion. See FIGS. 2 and 5. This arrangement affords easy access to the valve body 44 and other internal elements of the valve.
  • valve housing possesses the usual outer configuration which is well known to those skilled in the art and to which no claim is herein made.
  • the enlarged area 26 is defined by a tapered section 33 which is so shaped to open away from the dispensing end of the valve.
  • the enlarged area 26 is further defined by a straight section 40 which extends from the tapered section 38 toward the auxiliary bore 28.
  • the valve seat 42 is formed in the tapered section 38, with the valve seat 42 also having an inclined inner surface so shaped to open away from dispensing end 24 of bore 22.
  • a valve body 44 is freely and movably positioned in the enlarged area 26 between the valve seat 42 and the auxiliary bore 28.
  • valve body 44 When the valve body 44 is urged by gas pressure from within sphere 12 to a nesting position against valve seat 42 the oxygen from sphere 12 can move into bore 22 only by passing through the extremely small opening 46.
  • the opening 46 is formed in wall 48 which is closest to bore 22.
  • the opening 46 communicates with a chamber 50 that is defined by inclined conical wall 52 of the valve body 44. It will be seen that the inclined conical wall 52 conforms generally to the inner surface of tapered section 38 of valve seat 42. Thus, when the valve body 44 is urged against the valve seat 42 a tight, seal will be established between the valve body 44 and the valve seat 42.
  • valve seat 42 will be of brass since it will be machined into the valve housing 22 that is preferably of brass.
  • the valve body 44 is also preferably made of brass since it has been found that a satisfactory gas seal is established between valve seat 42 and valve body 44. It is to be understood that one or both of valve seat 42 and valve body 44 may be made of other materials, such as metal and plastic, like tefion.
  • valve body 44 also possesses a wall 54 which is remote from wall 48. It will be seen that the wall 54 has a transverse slot 56 formed in it. This slot 56 follows for fast charging of the sphere 12 since it enables the charging gas to bypass the extremely small opening 46, but the slot 56 is closed off when the valve body 44 is urged against the valve seat 42. This is the normal position of the freeiy disposed valvebody 44, and since the siot 56 is closed off in the normal position the gas from sphere 12 can escape into bore 22 only by passing through the extremely small dispensing opening 46.
  • the teflon seal 60 includes a sidewall 62 with the seal 60 being held in place by axial pressure under tightening of threads 17 and 66.
  • FIG. The fast charging operation is shown in FIG. wherein a coupling 64 is positioned about the valve housing 20.
  • the coupling 64 has threads 66 which engage the threads 17 of the valve housing.
  • the coupling 64 is actually a shroud having a sidewall 68 with an open end 70 that is closed off by a resilient cap 72 having a pressure exerting point 74.
  • An extension 76 is provided which includes an inlet port 78 that communicates with charging cylinder 80. It can be seen that the extension 76 is received within neck 82 of the cylinder 80.
  • the coupling 64 is backed away to allow pin 34 to return to its normaily closed position.
  • the pin 34 may be manually depressed to bleed a bit of gas out of storage space 15. This has the effect of applying the pressure of gas in storage space 15 against valve body 44 to urge it into nesting position within the valve seat 42 so that the gas from storage space 15 can escape only through extremely small opening 46, and then only when the pin 34 is de ressed.
  • valve in a fast charging and slow dispensing valve for a gas under pressure, said valve communicating with a storage space for said pressurized gas, said storage space being contained in a hollow sphere having a neck portion that is at least partially threaded, said valve comprising a valve housing having a bore including a chamber adjacent said storage space, said valve housing being threadedly engaged in said neck portion, said bore being formed in a dispensing end of said vaive housing remote from said storage space, said bore extending through said housing and into said chamber which communicates with said storage space,'a fixed valve seat formed in said chamber, said valve seat having an inclined inner surface so shaped to open away from said dispensing end of said bore, and a freely movable valve body positioned in said chamber between said valve seat and said space, said valve body having an extremely small dispensing opening of 0.003 to 0.004 inches in diameter which normally allows said gas to pas outwardly from said storage space in a slow dispensing action when said valve body is in a normal position nesting within said valve seat with said valve
  • valve body has a generally frustoconical outer surface.
  • the invention of claim 4 including a seal positioned between said neck portion and said valve housing.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US820167A 1969-04-29 1969-04-29 Fast charging medical oxygen dispenser Expired - Lifetime US3570714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82016769A 1969-04-29 1969-04-29

Publications (1)

Publication Number Publication Date
US3570714A true US3570714A (en) 1971-03-16

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ID=25230065

Family Applications (1)

Application Number Title Priority Date Filing Date
US820167A Expired - Lifetime US3570714A (en) 1969-04-29 1969-04-29 Fast charging medical oxygen dispenser

Country Status (3)

Country Link
US (1) US3570714A (de)
DE (2) DE7016093U (de)
NL (1) NL7006288A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168015A (en) * 1978-04-24 1979-09-18 Parker-Hannifin Corporation Tire inflation device
US20060124661A1 (en) * 2004-12-10 2006-06-15 Siimes Thomas S Gas pin valve with safety features

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327825C2 (de) * 1992-11-24 1996-10-02 Mannesmann Ag Drosselrückschlagelement

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1984375A (en) * 1932-09-10 1934-12-18 Johnston Charles Wiswell Container for compressed gases and liquids
US2550373A (en) * 1947-08-18 1951-04-24 Franks Mfg Corp Fluid pressure operated clutch
US2998168A (en) * 1957-07-04 1961-08-29 Waldherr Wilhelm Fluid dispenser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1984375A (en) * 1932-09-10 1934-12-18 Johnston Charles Wiswell Container for compressed gases and liquids
US2550373A (en) * 1947-08-18 1951-04-24 Franks Mfg Corp Fluid pressure operated clutch
US2998168A (en) * 1957-07-04 1961-08-29 Waldherr Wilhelm Fluid dispenser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168015A (en) * 1978-04-24 1979-09-18 Parker-Hannifin Corporation Tire inflation device
US20060124661A1 (en) * 2004-12-10 2006-06-15 Siimes Thomas S Gas pin valve with safety features

Also Published As

Publication number Publication date
DE7016093U (de) 1971-02-18
DE2020900A1 (de) 1970-12-17
NL7006288A (de) 1970-11-02

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