Patent US3208646A successfully refreshed from Google Patents.
US3208646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydropneumatic accumulator
Assignee: Individual
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Filing: 1964-08-17
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Granted: 1965-09-28
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Expires: 1984-08-17
Abstract
No abstract record available.
Inventors
- 👤 Harold B Wessenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:02
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3152; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/4155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A HYDROPNEUMATIC ACCUMULATOR COMPRISING: AN OUTER LIQUID CONTAINER WITH AN OUTLET VALVE; AN INNER GAS CONTAINER; A FLEXIBLE BLADDER, HAVING A PERIPHERAL EDGE, SNUGLY ENCOMPASSING SAID INNER GAS CONTAINER AND SEALINGLY CONNECTED THERETO AROUND SAID PERIPHERAL EDGE; VALVE MEANS FOR RELESING GAS FRON SAID INNER CONTAINER AND MEANS TO ACUATE SAID VALVE MEANS; PASSAGE MEANS FROM SAID VALVE MEANS TO THE INSIDE OF SAID FLEXIBLE BLADDER AND APPARATUS CONNECTED BETWEEN SAID FLEXIBLE BLADDER AND SAID FIRST-MENTIONED OUTLET VALVE TO OPEN SAID OUTLET VALVE AS SAID BLADDER IS EXPANDED; THE APPARATUS OPERATING SUCH THAT HAIGH PRESSURE GAS FROM SAID INNDER GAS CONTAINER MAY BE RELEASED THROUGH SAID VALVE MEANS AND PASSAGE MEANS TO PRESSURIZE AND EXPAND SAID FLEXIBLE BLADDER TO THEREBY PLACE SAID LIQUID UNDER PRESSURE AND OPEN SAID OUTLET VALVE TO RELEASE THE PRESUREIZED LIQUID; AND A PRESSURE RELIEF VALVE COMMUNICATING WITH SAID PASSAGE MEANS TO RELEIVE EXCESSIVE PRESSURES IN SAID PASSAGE TO THEREBY PREVENT EXCESSIVE PRESSURE BUILDUP IN SAID FLEXIBLE BLADDER OR IN SAID LIQUID CONTAINER.
Claim 2
Dependent Claim
167 words
A HYDROPNEUMATIC ACCUMULATOR COMPRISING: AN OUTER LIQUID CONTAINER WITH AN OUTLET VALVE; AN INNER GAS CONTAINER; A FLEXIBLE BLADDER, HAVING A PERIPHERAL EDGE, SNUGLY ENCOMPASSING SAID INNER GAS CONTAINER AND SEALINGLY CONNECTED THERETO AROUND SAID PERIPHERAL EDGE; VALVE MEANS FOR RELESING GAS FRON SAID INNER CONTAINER AND MEANS TO ACUATE SAID VALVE MEANS; PASSAGE MEANS FROM SAID VALVE MEANS TO THE INSIDE OF SAID FLEXIBLE BLADDER AND APPARATUS CONNECTED BETWEEN SAID FLEXIBLE BLADDER AND SAID FIRST-MENTIONED OUTLET VALVE TO OPEN SAID OUTLET VALVE AS SAID BLADDER IS EXPANDED; THE APPARATUS OPERATING SUCH THAT HAIGH PRESSURE GAS FROM SAID INNDER GAS CONTAINER MAY BE RELEASED THROUGH SAID VALVE MEANS AND PASSAGE MEANS TO PRESSURIZE AND EXPAND SAID FLEXIBLE BLADDER TO THEREBY PLACE SAID LIQUID UNDER PRESSURE AND OPEN SAID OUTLET VALVE TO RELEASE THE PRESUREIZED LIQUID; AND A PRESSURE RELIEF VALVE COMMUNICATING WITH SAID PASSAGE MEANS TO RELEIVE EXCESSIVE PRESSURES IN SAID PASSAGE TO THEREBY PREVENT EXCESSIVE PRESSURE BUILDUP IN SAID FLEXIBLE BLADDER OR IN SAID LIQUID CONTAINER.
References Cited (Backward Citations)
US2342356A
Cited
US3000542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |