Patent US3143144A successfully refreshed from Google Patents.
US3143144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accumulator
Assignee: Individual
•
Filing: 1961-11-27
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Granted: 1964-08-04
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Expires: 1981-11-27
Abstract
No abstract record available.
Inventors
- 👤 Peet William Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:36
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/16; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3151; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/4155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A BACKING FOR INTERIORLY SUPPORTING THE FLEXIBLE DIAPHRAGM TUBE OF AN ACCUMULATOR, SAID BACKING COMPRISING A HOLLOW CORE, SAID CORE INCLUDING SPACED CONFRONTING WALLS ADAPTED TO SUPPORT ON THEIR OUTER SURFACES SPACED PORTIONS OF THE DIAPHRAGM TUBE WHEN THE LATTER IS COLLAPSED AND TO FLEX TOWARD AND INTO CONTACT WITH EACH OTHER BY THE PRESSURE OF THE COLLAPSED TUBE, AND MEANS PROVIDING FLUID COMMUNICATION BETWEEN THE HOLLOW INTERIOR OF SAID CORE AND THE SPACE SURROUNDING SAID CORE INCLUDING A PORT IN ONE OF SAID WALLS, SAID PORT BEING SUBSTANTIALLY CLOSED BY THE OTHER OF SAID WALLS WHEN SAID WALLS FLEX TOWARD AND INTO CONTACT WITH EACH OTHER AS AFORESAID.
Claim 2
Dependent Claim
109 words
A BACKING FOR INTERIORLY SUPPORTING THE FLEXIBLE DIAPHRAGM TUBE OF AN ACCUMULATOR, SAID BACKING COMPRISING A HOLLOW CORE, SAID CORE INCLUDING SPACED CONFRONTING WALLS ADAPTED TO SUPPORT ON THEIR OUTER SURFACES SPACED PORTIONS OF THE DIAPHRAGM TUBE WHEN THE LATTER IS COLLAPSED AND TO FLEX TOWARD AND INTO CONTACT WITH EACH OTHER BY THE PRESSURE OF THE COLLAPSED TUBE, AND MEANS PROVIDING FLUID COMMUNICATION BETWEEN THE HOLLOW INTERIOR OF SAID CORE AND THE SPACE SURROUNDING SAID CORE INCLUDING A PORT IN ONE OF SAID WALLS, SAID PORT BEING SUBSTANTIALLY CLOSED BY THE OTHER OF SAID WALLS WHEN SAID WALLS FLEX TOWARD AND INTO CONTACT WITH EACH OTHER AS AFORESAID.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |