US3075738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self sealing disc for spoon type valves
Assignee: Garrett Corp
•
Filing: 1955-08-17
•
Granted: 1963-01-29
•
Expires: 1975-08-17
Abstract
No abstract record available.
Inventors
- 👤 Robert A Englund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:59
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/228; F16K1/2285
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A VALVE, A BODY FORMING A FLUID-CONDUCTING BORE; A FLEXIBLE CONCAVO-CONVEX VALVE ELEMENT HAVING A CONTOUR CONFORMING SUBSTANTIALLY TO THE CROSS-SECTIONAL SHAPE OF SAID BORE, SAID ELEMENT HAVING A CURLED PERIPHERAL EDGE; AND MEANS SUPPORTING SAID ELEMENT FOR MOVEMENT IN SAID BORE BETWEEN OPEN AND CLOSED POSITIONS, THE CONVEX SIDE OF SAID ELEMENT BEING EXPOSED TO FLUID PRESSURE WHEN SAID VALVE ELEMENT IS IN A CLOSED POSITION, SAID ELEMENT BEING MOVABLE RELATIVE TO SAID SUPPORTING MEANS, WHEREBY SAID PRESSURE TENDS TO FLATTEN SAID ELEMENT AND MOVE THE CURLED EDGE INTO SEALING ENGAGEMENT WITH THE WALL OF SAID BORE.
Claim 2
Dependent Claim
99 words
IN A VALVE, A BODY FORMING A FLUID-CONDUCTING BORE; A FLEXIBLE CONCAVO-CONVEX VALVE ELEMENT HAVING A CONTOUR CONFORMING SUBSTANTIALLY TO THE CROSS-SECTIONAL SHAPE OF SAID BORE, SAID ELEMENT HAVING A CURLED PERIPHERAL EDGE; AND MEANS SUPPORTING SAID ELEMENT FOR MOVEMENT IN SAID BORE BETWEEN OPEN AND CLOSED POSITIONS, THE CONVEX SIDE OF SAID ELEMENT BEING EXPOSED TO FLUID PRESSURE WHEN SAID VALVE ELEMENT IS IN A CLOSED POSITION, SAID ELEMENT BEING MOVABLE RELATIVE TO SAID SUPPORTING MEANS, WHEREBY SAID PRESSURE TENDS TO FLATTEN SAID ELEMENT AND MOVE THE CURLED EDGE INTO SEALING ENGAGEMENT WITH THE WALL OF SAID BORE.
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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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |