US3277925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accumulator
Assignee: Individual
•
Filing: 1963-06-04
•
Granted: 1966-10-11
•
Expires: 1983-06-04
Abstract
No abstract record available.
Inventors
- 👤 Sugimura Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:13
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/43; F15B2201/60; F15B2201/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
AN ACCUMULATOR COMPRISING A CYLINDRICAL LIQUID TANK AND A GENERALLY CYLINDRICAL GAS BAG DISPOSED WITHIN THE TANK, SAID GAS BAG BEING FORMED OF A FLEXIBLE AND ELASTIC MATERIAL HAVING EXACTLY THREE INDIVIDUAL LONGITUDINAL REINFORCEMENTS SPACED EQUIDISTANTLY ABOUT THE PERIPHERY OF THE SIDE WALL OF SAID GAS BAG TO MINIMIZE STRETCHING OF SAID GAS BAG UPON COLLAPSE THEREOF DUE TO EXTERNAL PRESSURE SAID REINFORCEMENTS HAVING SUBSTANTIAL RIGIDITY TO RESIST EXTERNAL PRESSURE OF LIQUID, AND SAID GAS BAG FURTHER HAVING THREE DEFORMABLE PORTIONS IN SAID GAS BAG SIDE WALL OF GENERALLY UNIFORM THICKNESS BETWEEN SAID INDIVIDUAL REINFORCEMENTS.
Claim 2
Dependent Claim
95 words
AN ACCUMULATOR COMPRISING A CYLINDRICAL LIQUID TANK AND A GENERALLY CYLINDRICAL GAS BAG DISPOSED WITHIN THE TANK, SAID GAS BAG BEING FORMED OF A FLEXIBLE AND ELASTIC MATERIAL HAVING EXACTLY THREE INDIVIDUAL LONGITUDINAL REINFORCEMENTS SPACED EQUIDISTANTLY ABOUT THE PERIPHERY OF THE SIDE WALL OF SAID GAS BAG TO MINIMIZE STRETCHING OF SAID GAS BAG UPON COLLAPSE THEREOF DUE TO EXTERNAL PRESSURE SAID REINFORCEMENTS HAVING SUBSTANTIAL RIGIDITY TO RESIST EXTERNAL PRESSURE OF LIQUID, AND SAID GAS BAG FURTHER HAVING THREE DEFORMABLE PORTIONS IN SAID GAS BAG SIDE WALL OF GENERALLY UNIFORM THICKNESS BETWEEN SAID INDIVIDUAL REINFORCEMENTS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US2397248A
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Cited
US2389791A
Cited
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Cited
US2485752A
Cited
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 |