US3082793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protecting apparatus for gas reservoir of oil accumulator
Assignee: Individual
•
Filing: 1960-01-04
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Granted: 1963-03-26
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Expires: 1980-01-04
Abstract
No abstract record available.
Inventors
- 👤 Sugimura Kazuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:06
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/18; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/43; Y; Y10; Y10T; Y10T24/00; Y10T24/15; Y10T24/152
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
IN AN OIL ACCUMULATOR HAVING AN EXPANDABLE GAS RESERVOIR LOCATED THEREIN, AN OIL SUPPLY AND DISCHARGE PASSAGEWAY LOCATED IN THE BOTTOM OF SAID ACCUMULATOR AND CONTAINING A POPPET TYPE VALVE THEREIN, A SOFT, NONMETALLIC AND ELASTIC CUSHION CUP OF HEMISPHERICAL SHAPE MOUNTED ON TOP OF SAID POPPET VALVE INTERMEDIATE SAID GAS RESERVOIR AND SAID POPPET VALVE, SAID CUSHION CUP BEING ADAPTED TO BE WIDENED DISH-SHAPED ELASTICALLY WHEN SAID GAS RESERVOIR EXPANDS TO ITS EXTREME SO AS TO COVER SAID VALVE COMPLETELY THEREBY AVOIDING DIRECT CONTACT BETWEEN SAID VALVE AND SAID RESERVOIR TO PROTECT THE BOTTOM OF SAID RESERVOIR.
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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |