Patent US3389720A successfully refreshed from Google Patents.
US3389720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Not valve for fluid logic circuits
Assignee: Aro Corp
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Filing: 1966-06-28
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Granted: 1968-06-25
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Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Karl A Brandenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:20
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/04; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K11/22; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8663
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A NOT VALVE FOR FLUID LOGIC CIRCUITS COMPRISING A VALVE BODY HAVING A PAIR OF INLETS, AN OUTLET AND AN EXHAUST PASSAGEWAY, AN OUTLET VALVE SEAT FOR SAID OUTLET, AN EXHAUST VALVE SEAT FOR SAID EXHAUST PASSAGEWAY, SAID VALVE SEATS BEING OPPOSED TO EACH OTHER, AN OUTLET VALVE FOR COACTION WITH SAID OUTLET VALVE SEAT, AN EXHAUST VALVE FOR COACTION WITH SAID EXHAUST VALVE SEAT, ONE OF SAID VALVES BEING CLOSED AGAINST ITS SEAT WHEN THE OTHER IS SPACED FROM ITS SEAT AND VICE VERSA, A DIAPHRAGM FOR ACTUATING SAID VALVES, SAID DIAPHRAGM BEING SUBJECT TO PRESSURE FROM ONE OF SAID INLETS, THE OTHER OF SAID INLETS COMMUNICATING WITH SAID OUTLET WHEN SAID OUTLET VALVE IS SPACED FROM SAID OUTLET VALVE SEAT AND CUTTING OFF FLOW BETWEEN SAID OTHER OF SAID INLETS AND SAID OUTLET WHEN SAID OUTLET VALVE IS SEATED ON SAID OUTLET VALVE SEAT WHEREBY THE ABSENCE OF A FLUID PRESSURE SIGNAL TO SAID ONE OF SAID INLETS WHEN FLUID PRESSURE IS SUPPLIED TO SAID OTHER OF SAID INLETS WILL OPEN SAID OUTLET VALVE RELATIVE TO SAID OUTLET VALVE SEAT AND CLOSE SAID EXHAUST VALVE RELATIVE TO SAID EXHAUST VALVE SEAT TO PRESSURIZE SAID OUTLET FROM SAID OTHER OF SAID INLETS.
Claim 2
Dependent Claim
203 words
A NOT VALVE FOR FLUID LOGIC CIRCUITS COMPRISING A VALVE BODY HAVING A PAIR OF INLETS, AN OUTLET AND AN EXHAUST PASSAGEWAY, AN OUTLET VALVE SEAT FOR SAID OUTLET, AN EXHAUST VALVE SEAT FOR SAID EXHAUST PASSAGEWAY, SAID VALVE SEATS BEING OPPOSED TO EACH OTHER, AN OUTLET VALVE FOR COACTION WITH SAID OUTLET VALVE SEAT, AN EXHAUST VALVE FOR COACTION WITH SAID EXHAUST VALVE SEAT, ONE OF SAID VALVES BEING CLOSED AGAINST ITS SEAT WHEN THE OTHER IS SPACED FROM ITS SEAT AND VICE VERSA, A DIAPHRAGM FOR ACTUATING SAID VALVES, SAID DIAPHRAGM BEING SUBJECT TO PRESSURE FROM ONE OF SAID INLETS, THE OTHER OF SAID INLETS COMMUNICATING WITH SAID OUTLET WHEN SAID OUTLET VALVE IS SPACED FROM SAID OUTLET VALVE SEAT AND CUTTING OFF FLOW BETWEEN SAID OTHER OF SAID INLETS AND SAID OUTLET WHEN SAID OUTLET VALVE IS SEATED ON SAID OUTLET VALVE SEAT WHEREBY THE ABSENCE OF A FLUID PRESSURE SIGNAL TO SAID ONE OF SAID INLETS WHEN FLUID PRESSURE IS SUPPLIED TO SAID OTHER OF SAID INLETS WILL OPEN SAID OUTLET VALVE RELATIVE TO SAID OUTLET VALVE SEAT AND CLOSE SAID EXHAUST VALVE RELATIVE TO SAID EXHAUST VALVE SEAT TO PRESSURIZE SAID OUTLET FROM SAID OTHER OF SAID INLETS.
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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |