US3575196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closed exhaust discharge system for anesthesia machines
Assignee: Individual
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Filing: 1969-01-10
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Granted: 1971-04-20
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Expires: 1989-01-10
Abstract
Abstract A relief valve for anesthetic gas line which is spring loaded to conventionally discharge overloading anesthetic gas into the surrounding atmosphere, and which further is provided with a valve assembly for connection to a closed system so that the overloading anesthetic gas is retained with the closed system and is not discharged to the surrounding atmosphere. The open system of the valve is maintained by making the spring loaded valve operational, and the closed system is effected by closing the spring loaded valve so that overloading anesthetic gas is directed through the valve assembly into the closed system, preferably a surgical room vacuum line.
Inventors
- 👤 Rocco Anthony Marrese
- 👤 William T O'sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:09
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0087; A61M16/009; A61M16/22; Y; Y10; Y10T; Y10T137/00; Y10T137/5762; Y10T137/8593; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
160 words
In a relief valve for a gas anesthesia line in a machine placed in a surgical room, said relief valve having a housing with a gas inlet port, means at said inlet port to mount said relief valve to the gas anesthesia line to provide communication therebetween, a gas discharge in said housing for pressure overloads, a spring-loaded valve inside the housing which is normally urged to close said gas inlet port, a repositionable closure on one end of said housing to control passage of said gas through said gas discharge, and said closure having means to adjust the tension of said spring, the improvement which includes a gas diverting body member mounted on said housing, a passageway in said gas diverting body member communicating with the interior of said housing, and mounting means on said gas diverting body member for receiving a closed system discharge means to collect overloaded gases without discharge into the atmosphere of a surgical room.
Claim 2
Dependent Claim
160 words
In a relief valve for a gas anesthesia line in a machine placed in a surgical room, said relief valve having a housing with a gas inlet port, means at said inlet port to mount said relief valve to the gas anesthesia line to provide communication therebetween, a gas discharge in said housing for pressure overloads, a spring-loaded valve inside the housing which is normally urged to close said gas inlet port, a repositionable closure on one end of said housing to control passage of said gas through said gas discharge, and said closure having means to adjust the tension of said spring, the improvement which includes a gas diverting body member mounted on said housing, a passageway in said gas diverting body member communicating with the interior of said housing, and mounting means on said gas diverting body member for receiving a closed system discharge means to collect overloaded gases without discharge into the atmosphere of a surgical room.
Claim 3
Dependent Claim
83 words
In a relief valve as in claim 1 wherein said body member includes a valve assembly having a needle valve to selectively reduce the passageway in said body member mounted on said relief valve housing, and said mounting means on said body member being a mounting tubular plug with a plug passageway communicating with the body member passageway, said mounting plug dimensioned to removably receive one end of a flexible tubing to convey anesthetic gas through said tubing and to said closed system.
Claim 4
Dependent Claim
144 words
In a relief valve as in claim 1 wherein said relief valve includes an adapter housing, a gas inlet port at one end of said adapter housing, means on said gas inlet port to removably secure said adapter housing to said anesthetic gas line, a threaded passageway at the opposite end of the adapter housing for mounting said relief valve thereon, said spring-loaded valve normally biased to close the end of the relief valve mounted to said adapter housing to passage of anesthetic gas therethrough, and said gas diverting body member including a valve assembly having a needle valve to selectively reduce the passageway in said body member communicating with the interior of the adapter housing so that any overloaded anesthetic gas may be selectively withdrawn from the gas line directly from said adapter housing through said valve assembly, and into the closed system.
Claim 5
Dependent Claim
90 words
In a relief valve as in claim 3 wherein said valve assembly has an outlet mounting member, said outlet mounting membEr being substantially tubular and of predetermined dimensions to sealingly receive the inside diameter of an elastomeric flexible tubing for conveying the anesthetic gas through said tubing and to said closed system, and said valve assembly including a receiving chamber for the anesthetic gas, and a discharge chamber communicating with said tubular mounting outlet, wherein said needle valve selectively opens and closes a path between said receiving and discharge chambers.
Claim 6
Dependent Claim
89 words
In a relief valve as in claim 1 and further including an anesthetic line having a respiratory gas conduit with an inhalation end and an opposite exhalation end, a gas outlet opening in said conduit, said gas inlet port of said relief valve being removably mounted to said gas outlet opening, and a valve assembly communicating with said relief valve, said closed system means mounted to said valve assembly for conveying any overloading anesthetic gas out of the gas conduit without discharge into the atmosphere of a surgical room.
Claim 7
Dependent Claim
48 words
A relief valve and anesthetic line system as in claim 5 in which said closed system includes a vacuum line connected to the outlet of said valve assembly to discharge any overloading anesthetic gas into said vacuum line out of contact with the environment of a surgical room.
Claim 8
Dependent Claim
42 words
In a relief valve, anesthetic line and closed vacuum line system as in claim 6 wherein said gas diverting body member includes said valve assembly, and a needle valve in said valve assembly to selectively close the gas diverting body member passageway.
Claim 9
Dependent Claim
64 words
In a relief valve as in claim 1 wherein said body member includes a valve assembly to control the discharge of overloading anesthetic gas into said closed system, and said mounting means on said body member being a mounting tubular plug with a plug passageway, said mounting plug dimensioned to receive an end of a conduit to convey anesthetic gas through said closed system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |