US3277922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device
Assignee: North American Aviation Corp
•
Filing: 1964-05-19
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Granted: 1966-10-11
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Expires: 1984-05-19
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Eisel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:09
CPC Classifications
F; F16; F16K; F16K5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/88038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A METERING VALVE COMPRISING IN COMBINATION A FIRST ELEMENT HAVING A LONGITUDINALLY EXTENDING INTERNAL PASSAGE, THE ENDS OF SAID PASSAGE BEING CLOSED, THE OUTER SURFACE OF BOTH ENDS HAVING ANNULAR SURFACES ADAPTED TO BE ROTATABLY SEATED WITHIN A COMPLEMENTARY INTERIOR ANNULAR SURFACE AT ONE END OF EACH OF A PAIR OF OPPOSITELY DISPOSED SECOND ELEMENTS EACH OF SAID SECOND ELEMENTS HAVING AN INTERIOR VOLUME THEREIN EXTENDING INTO THE VOLUME DEFINED BY SAID INTERIOR ANNULAR SURFACE AND ADAPTED TO BE CLOSED BY ONE END OF SAID FIRST ELEMENT, A CHANNEL FORMED IN A PORTION OF THE WALL OF EACH OF SAID SECOND ELEMENTS, SAID CHANNEL CONNECTING SAID INTERIOR VOLUME OF EACH OF SAID SECOND ELEMENTS WITH SAID INTERIOR ANNULAR SURFACES OF SAID SECOND ELEMENTS, AN APERTURE LOCATED IN EACH OF THE ANNULAR SURFACES OF SAID FIRST ELEMENTS AT A POINT SPACED FROM SAID CLOSED END AND ADAPTED TO SELECTIVELY CONNECT THE PASSGE OF SAID FIRT ELEMENT TO SAID CHANNELS.
Claim 2
Dependent Claim
158 words
A METERING VALVE COMPRISING IN COMBINATION A FIRST ELEMENT HAVING A LONGITUDINALLY EXTENDING INTERNAL PASSAGE, THE ENDS OF SAID PASSAGE BEING CLOSED, THE OUTER SURFACE OF BOTH ENDS HAVING ANNULAR SURFACES ADAPTED TO BE ROTATABLY SEATED WITHIN A COMPLEMENTARY INTERIOR ANNULAR SURFACE AT ONE END OF EACH OF A PAIR OF OPPOSITELY DISPOSED SECOND ELEMENTS EACH OF SAID SECOND ELEMENTS HAVING AN INTERIOR VOLUME THEREIN EXTENDING INTO THE VOLUME DEFINED BY SAID INTERIOR ANNULAR SURFACE AND ADAPTED TO BE CLOSED BY ONE END OF SAID FIRST ELEMENT, A CHANNEL FORMED IN A PORTION OF THE WALL OF EACH OF SAID SECOND ELEMENTS, SAID CHANNEL CONNECTING SAID INTERIOR VOLUME OF EACH OF SAID SECOND ELEMENTS WITH SAID INTERIOR ANNULAR SURFACES OF SAID SECOND ELEMENTS, AN APERTURE LOCATED IN EACH OF THE ANNULAR SURFACES OF SAID FIRST ELEMENTS AT A POINT SPACED FROM SAID CLOSED END AND ADAPTED TO SELECTIVELY CONNECT THE PASSGE OF SAID FIRT ELEMENT TO SAID CHANNELS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |