US3355271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas holder
Assignee: Kins Developments Ltd
•
Filing: 1964-08-17
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Granted: 1967-11-28
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Brian S Soan
- 👤 Roy A Waller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:49
CPC Classifications
F; F17; F17B; F17B1/00; F17B1/013; F17B1/02; F17B1/04; F17B1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A GAS HOLDER COMPRISING A TANK HAVING AN INNER WALL; A PISTON HAVING AN OUTER WALL AND MOVABLE UP AND DOWN IN THE TANK; A FLEXIBLE DIAPHRAGM SEAL ATTACHED BETWEEN SAID WALLS, THE SEAL ROLLING ON ONE OF SAID WALLS AND OFF THE OTHER AS THE PISTON MOVES AND DEFINING AT ALL FLOATING POSITIONS OF THE PISTON AN INVERTED U-SHAPED GASCONFINING POCKET; THE TOP OF SAID POCKET BEING AT A HEIGHT ABOVE THE CENTER OF GRAVITY OF THE PISTON SUFFICIENT TO RENDER THE PISTON SELF-STABILIZING, THE HEIGHT OF SAID POCKET BEING ALWAYS GREATER THAN R/PI + 4/PI WHERE R IS THE RADIUS OF THE PISTON.
Claim 2
Dependent Claim
105 words
A GAS HOLDER COMPRISING A TANK HAVING AN INNER WALL; A PISTON HAVING AN OUTER WALL AND MOVABLE UP AND DOWN IN THE TANK; A FLEXIBLE DIAPHRAGM SEAL ATTACHED BETWEEN SAID WALLS, THE SEAL ROLLING ON ONE OF SAID WALLS AND OFF THE OTHER AS THE PISTON MOVES AND DEFINING AT ALL FLOATING POSITIONS OF THE PISTON AN INVERTED U-SHAPED GASCONFINING POCKET; THE TOP OF SAID POCKET BEING AT A HEIGHT ABOVE THE CENTER OF GRAVITY OF THE PISTON SUFFICIENT TO RENDER THE PISTON SELF-STABILIZING, THE HEIGHT OF SAID POCKET BEING ALWAYS GREATER THAN R/PI + 4/PI WHERE R IS THE RADIUS OF THE PISTON.
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |