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US3159168A
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Pneumatic clock
Assignee: Unisys Corp
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Filing: 1962-02-16
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Granted: 1964-12-01
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Expires: 1982-02-16
Abstract
No abstract record available.
Inventors
- 👤 Trevor D Reader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:31
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/22; F15C1/08; G; G04; G04F; G04F5/00; G04F5/12; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2229; Y10T137/2234
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A PURE FLUID DEVICE OF THE TYPE WHEREIN A FLUID POWER JET STREAM UNDER PRESSURE MAINTAINS ITS FLOW IN AN OUTPUT CHANNEL TO WHICH IT IS DIVERTED, THE COMBINATION COMPRISING: (A) FIRST MEANS FOR SELECTIVELY MAINTAINING THE QUIESCENT PRESSURE IN SAID OUTPUT CHANNEL, WHICH EXISTS DURING THE ABSENCE OF SAID POWER STREAM THEREIN, WITHIN A RANGE OF VALUES BELOW A CERTAIN THRESHOLD; (B) SECOND MEANS TEMPORARILY ACTING TO DIVERT SAID POWER STREAM INTO SAID OUTPUT CHANNEL WHERE IT THEREAFTER REMAINS TO INCREASE THE PRESSURE THEREIN UP TO SAID THRESHOLD VALUE WITHIN A FINITE TIME DEPENDING UPON THE VALUES OF SAID CHANNEL QUIESCENT PRESSURE AND SAID POWER STREAM PRESSURE; AND (C) THIRD MEANS RESPONSIVE TO SAID THERESHOLD VALUE OF PRESSURE IS SAID OUTPUT CHANNEL FOR DIVERTING SAID POWER STREAM AWAY FROM ENTERING SAID OUTPUT CHANNEL SO THAT THE PRESSURE THEREIN SUBSEQUENTLY RETURNS TO ITS QUIESCENT VALUE.
Claim 2
Dependent Claim
146 words
IN A PURE FLUID DEVICE OF THE TYPE WHEREIN A FLUID POWER JET STREAM UNDER PRESSURE MAINTAINS ITS FLOW IN AN OUTPUT CHANNEL TO WHICH IT IS DIVERTED, THE COMBINATION COMPRISING: (A) FIRST MEANS FOR SELECTIVELY MAINTAINING THE QUIESCENT PRESSURE IN SAID OUTPUT CHANNEL, WHICH EXISTS DURING THE ABSENCE OF SAID POWER STREAM THEREIN, WITHIN A RANGE OF VALUES BELOW A CERTAIN THRESHOLD; (B) SECOND MEANS TEMPORARILY ACTING TO DIVERT SAID POWER STREAM INTO SAID OUTPUT CHANNEL WHERE IT THEREAFTER REMAINS TO INCREASE THE PRESSURE THEREIN UP TO SAID THRESHOLD VALUE WITHIN A FINITE TIME DEPENDING UPON THE VALUES OF SAID CHANNEL QUIESCENT PRESSURE AND SAID POWER STREAM PRESSURE; AND (C) THIRD MEANS RESPONSIVE TO SAID THERESHOLD VALUE OF PRESSURE IS SAID OUTPUT CHANNEL FOR DIVERTING SAID POWER STREAM AWAY FROM ENTERING SAID OUTPUT CHANNEL SO THAT THE PRESSURE THEREIN SUBSEQUENTLY RETURNS TO ITS QUIESCENT VALUE.
References Cited (Backward Citations)
US3024805A
Cited
US3001539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-01 | 1968-06-01 | 1968-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-01 | 1972-06-01 | 1972-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-01 | 1976-06-01 | 1976-12-01 | $7700.00 | Window Closed / Lapsed |