US3119408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable head and seat valve unit
Assignee: Robbins Aviation Inc
•
Filing: 1961-08-31
•
Granted: 1964-01-28
•
Expires: 1981-08-31
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:33
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/56; F16K31/566; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7613; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7934; Y10T137/7935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
240 words
A VALVE COMPRISING A BODY HAVING A FLUID PASSAGE ON A GIVEN AXIS OF AND OPENING AT ONE END THROUGH ONE SIDE OF THE BODY, SAID FLUID PASSAGE TERMINATING AT ITS OTHER END AT A CENTRAL POSITION IN SAID BODY AND THE LATTER HAVING A SECOND FLUID PASSAGE DISPLACED FROM SAID AXIS AND OPENING AT ONE END TO SAID OTHER END OF THE FIRST PASSAGE AND AT ITS OTHER END THROUGH ANOTHER SIDE OF SAID BODY, A REMOVABLE VALVE SEAT ELEMENT AT SAID ONE END OF SAID FIRST PASSAGE HAVING A FLUID PASSAGE ALIGNED WITH AND SMALLER THAN SAID ONE END OF SAID FIRST PASSAGE, THE PORTION OF SAID ELEMENT IMMEDIATELY ABOUT SAID PASSAGE IN THE ELEMENT FORMING A VALVE SEAT, THERE BEING A THREADED BORE IN SAID BODY ON SAID AXIS OPENING AT ONE END TO SAID OTHER END OF SAID FIRST PASSAGE AND AT ITS OTHER END THROUGH THE SIDE OF SAID BODY OPPOSITE SAID ONE SIDE, A VALVE SUPPORT THREADED IN SAID BORE AND FORMED AT ONE END WITH A SMOOTH, CYLINDRICAL POST EXTENDING AXIALLY THROUGH SAID FIRST PASSAGE, A VALVE MEMBER SLIDABLY MOUNTED ON SAID POST FOR MOVEMENT INTO AND OUT OF SEALING CONTACT WITH SAID SEALING ELEMENT ABOUT THE FLUID PASSAGE IN THE ELEMENT, THERE BEING A SHOULDER AT THE BASE OF SAID POST, AND SPRING MEANS ON SAID POST BETWEEN SAID SHOULDER AND SAID VALVE MEMBER FOR URGING THE LATTER AGAINST SAID VALVE SEAT.
Claim 2
Dependent Claim
240 words
A VALVE COMPRISING A BODY HAVING A FLUID PASSAGE ON A GIVEN AXIS OF AND OPENING AT ONE END THROUGH ONE SIDE OF THE BODY, SAID FLUID PASSAGE TERMINATING AT ITS OTHER END AT A CENTRAL POSITION IN SAID BODY AND THE LATTER HAVING A SECOND FLUID PASSAGE DISPLACED FROM SAID AXIS AND OPENING AT ONE END TO SAID OTHER END OF THE FIRST PASSAGE AND AT ITS OTHER END THROUGH ANOTHER SIDE OF SAID BODY, A REMOVABLE VALVE SEAT ELEMENT AT SAID ONE END OF SAID FIRST PASSAGE HAVING A FLUID PASSAGE ALIGNED WITH AND SMALLER THAN SAID ONE END OF SAID FIRST PASSAGE, THE PORTION OF SAID ELEMENT IMMEDIATELY ABOUT SAID PASSAGE IN THE ELEMENT FORMING A VALVE SEAT, THERE BEING A THREADED BORE IN SAID BODY ON SAID AXIS OPENING AT ONE END TO SAID OTHER END OF SAID FIRST PASSAGE AND AT ITS OTHER END THROUGH THE SIDE OF SAID BODY OPPOSITE SAID ONE SIDE, A VALVE SUPPORT THREADED IN SAID BORE AND FORMED AT ONE END WITH A SMOOTH, CYLINDRICAL POST EXTENDING AXIALLY THROUGH SAID FIRST PASSAGE, A VALVE MEMBER SLIDABLY MOUNTED ON SAID POST FOR MOVEMENT INTO AND OUT OF SEALING CONTACT WITH SAID SEALING ELEMENT ABOUT THE FLUID PASSAGE IN THE ELEMENT, THERE BEING A SHOULDER AT THE BASE OF SAID POST, AND SPRING MEANS ON SAID POST BETWEEN SAID SHOULDER AND SAID VALVE MEMBER FOR URGING THE LATTER AGAINST SAID VALVE SEAT.
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |