US3137308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compartment pressure regulating device
Assignee: Aerojet Rocketdyne Inc
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Filing: 1960-08-18
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Granted: 1964-06-16
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Expires: 1980-08-18
Abstract
No abstract record available.
Inventors
- 👤 Sigmund H Machlanski
- 👤 Theodore R Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:20
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02; Y; Y02; Y02T; Y02T50/00; Y02T50/40; Y10; Y10S; Y10S137/00; Y10S137/908; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7797; Y10T137/7798; Y10T137/7801; Y10T137/7822
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
228 words
AN APPARATUS OF THE CLASS DESCRIBED COMPRISING IN COMBINATION A NON-HERMETIC COMPARTMENT, A LIMITED SOURCE OF PRESSURIZED GAS, MEANS CONNECTING SAID SOURCE OF PRESSURIZED GAS WITH SAID COMPARTMENT INCLUDING A HOUSING HAVING A CHAMBER THEREIN ADAPTED TO COMMUNICATE WITH THE INTERIOR OF SAID COMPARTMENT THROUGH A FLUID PASSAGE, A PRESSURE RESPONSIVE DEVICE MOUNTED IN SAID CHAMBER FOR RESPONDING TO THE PRESSURE IN SAID COMPARTMENT, SAID LIMITED SOURCE OF PRESSURIZED GAS SUFFICIENT TO SUPPLY THE REQUIRED GAS PRESSURE TO THE COMPARTMENT; VALVE MEANS IN SAID CONNECTING MEANS, SAID VALVE MEANS BEING CONNECTED TO SAID PRESSURE RESPONSIVE DEVICE AND OPENED AND CLOSED BY SAID PRESSURE RESPONSIVE DEVICE TO ADMIT GAS FROM SAID SOURCE TO THE COMPARTMENT WHEN THE PRESSURE THEREIN FALLS BELOW A PREDETERMINED LOWER LIMIT AND TO CLOSE SAID VALVE MEANS WHEN SAID PRESSURE IN THE COMPARTMENT REACHES A PREDETERMINED HIGHER LIMIT; AND PRESSURE RESPONSIVE MEANS IN SAID HOUSING INCLUDING A MEMBER ASSOCIATED WITH SAID HOUSING AND POSITIONED IN THE LINE OF MOVEMENT OF SAID VALVE MEANS, SAID MEMBER OF SAID PRESSURE RESPONSIVE MEANS BEING POSITIONED BY THE PRESSURE OF GAS IN SAID SOURCE TO AUTOMATICALLY LIMIT THE OPENING MOVEMENT OF SAID VALVE MEANS TO A DEGREE DECREASING WITH DECREASE IN THE PRESSURE OF THE GAS FROM SAID SOURCE WHEREBY THE GAS PRESSURE IN SAID NON-HERMETIC COMPARTMENT IS MAINTAINED WITHIN NARROW LIMITS USING SAID LIMITED SOURCE OF PRESSURIZED GAS.
Claim 2
Independent Claim
228 words
AN APPARATUS OF THE CLASS DESCRIBED COMPRISING IN COMBINATION A NON-HERMETIC COMPARTMENT, A LIMITED SOURCE OF PRESSURIZED GAS, MEANS CONNECTING SAID SOURCE OF PRESSURIZED GAS WITH SAID COMPARTMENT INCLUDING A HOUSING HAVING A CHAMBER THEREIN ADAPTED TO COMMUNICATE WITH THE INTERIOR OF SAID COMPARTMENT THROUGH A FLUID PASSAGE, A PRESSURE RESPONSIVE DEVICE MOUNTED IN SAID CHAMBER FOR RESPONDING TO THE PRESSURE IN SAID COMPARTMENT, SAID LIMITED SOURCE OF PRESSURIZED GAS SUFFICIENT TO SUPPLY THE REQUIRED GAS PRESSURE TO THE COMPARTMENT; VALVE MEANS IN SAID CONNECTING MEANS, SAID VALVE MEANS BEING CONNECTED TO SAID PRESSURE RESPONSIVE DEVICE AND OPENED AND CLOSED BY SAID PRESSURE RESPONSIVE DEVICE TO ADMIT GAS FROM SAID SOURCE TO THE COMPARTMENT WHEN THE PRESSURE THEREIN FALLS BELOW A PREDETERMINED LOWER LIMIT AND TO CLOSE SAID VALVE MEANS WHEN SAID PRESSURE IN THE COMPARTMENT REACHES A PREDETERMINED HIGHER LIMIT; AND PRESSURE RESPONSIVE MEANS IN SAID HOUSING INCLUDING A MEMBER ASSOCIATED WITH SAID HOUSING AND POSITIONED IN THE LINE OF MOVEMENT OF SAID VALVE MEANS, SAID MEMBER OF SAID PRESSURE RESPONSIVE MEANS BEING POSITIONED BY THE PRESSURE OF GAS IN SAID SOURCE TO AUTOMATICALLY LIMIT THE OPENING MOVEMENT OF SAID VALVE MEANS TO A DEGREE DECREASING WITH DECREASE IN THE PRESSURE OF THE GAS FROM SAID SOURCE WHEREBY THE GAS PRESSURE IN SAID NON-HERMETIC COMPARTMENT IS MAINTAINED WITHIN NARROW LIMITS USING SAID LIMITED SOURCE OF PRESSURIZED GAS.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |