Patent US3331399A successfully refreshed from Google Patents.
US3331399A
Expired / Lapsed
US
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Accumulator
Assignee: Individual
•
Filing: 1965-01-27
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Granted: 1967-07-18
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Expires: 1985-01-27
Abstract
No abstract record available.
Inventors
- 👤 Forell Kenneth J Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:21
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F16L55/053; F16L55/054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
AN ACCUMULATOR COMPRISING AN INNER TUBULAR MEMBER, THERE BEING A PLURALITY OF LATERAL SLOTS FORMED IN SAID TUBULAR MEMBER AND EACH SAID SLOT BEING LESS THAN 180* OF REVOLUTION OF THE PERIPHERY THEREOF; AN OUTER TUBE ENCLOSING SAID INNER TUBULAR MEMBER PROVIDING AN ANNULAR SPACE THEREBETWEEN AND INCLUDING AN END CAP SEALED ON EACH END THEREOF, EACH SAID END CAP PROVIDED WITH A CENTRAL OPENING PERMITTING PASSAGE OF SAID INNER TUBULAR MEMBER, EACH SAID END CAP HAVING AN OUTWARDLY FLARED OPENING PROVIDING A CONICAL RECESS AROUND SAID INNER TUBULAR MEMBER; A TUBULAR, RESILIENT DIAPHRAGM ENCLOSING SAID INNER TUBULAR MEMBER, EACH END OF SAID DIAPHRAGM EXTENDING INTO THE ADJACENT RECESS; A RESILIENT SEAL OF A GENERAL CONICAL CROSS-SECTION MOUNTED IN EACH RECESS ON SAID TUBULAR MEMBER AND TELESCOPED INSIDE THE END OF SAID DIAPHRAGM; A SEAL RETAINER SECURED TO EACH SAID END CAP AND IN GENERAL ABUTTING RELATION TO SAID INNER TUBULAR MEMBER THEREBY FORCING SAID SEAL AND DIAPHRAGM AGAINST SAID END CAP AND AGAINST SAID INNER TUBULAR MEMBER; MEANS FOR CONNECTING BOTH SAID SEAL RETAINERS TO A LIQUID LINE; AND MEANS FOR MAINTAINING GAS UNDER PRESSURE IN SAID ANNULAR SPACE AROUND SAID DIAPHRAGM.
Claim 2
Dependent Claim
193 words
AN ACCUMULATOR COMPRISING AN INNER TUBULAR MEMBER, THERE BEING A PLURALITY OF LATERAL SLOTS FORMED IN SAID TUBULAR MEMBER AND EACH SAID SLOT BEING LESS THAN 180* OF REVOLUTION OF THE PERIPHERY THEREOF; AN OUTER TUBE ENCLOSING SAID INNER TUBULAR MEMBER PROVIDING AN ANNULAR SPACE THEREBETWEEN AND INCLUDING AN END CAP SEALED ON EACH END THEREOF, EACH SAID END CAP PROVIDED WITH A CENTRAL OPENING PERMITTING PASSAGE OF SAID INNER TUBULAR MEMBER, EACH SAID END CAP HAVING AN OUTWARDLY FLARED OPENING PROVIDING A CONICAL RECESS AROUND SAID INNER TUBULAR MEMBER; A TUBULAR, RESILIENT DIAPHRAGM ENCLOSING SAID INNER TUBULAR MEMBER, EACH END OF SAID DIAPHRAGM EXTENDING INTO THE ADJACENT RECESS; A RESILIENT SEAL OF A GENERAL CONICAL CROSS-SECTION MOUNTED IN EACH RECESS ON SAID TUBULAR MEMBER AND TELESCOPED INSIDE THE END OF SAID DIAPHRAGM; A SEAL RETAINER SECURED TO EACH SAID END CAP AND IN GENERAL ABUTTING RELATION TO SAID INNER TUBULAR MEMBER THEREBY FORCING SAID SEAL AND DIAPHRAGM AGAINST SAID END CAP AND AGAINST SAID INNER TUBULAR MEMBER; MEANS FOR CONNECTING BOTH SAID SEAL RETAINERS TO A LIQUID LINE; AND MEANS FOR MAINTAINING GAS UNDER PRESSURE IN SAID ANNULAR SPACE AROUND SAID DIAPHRAGM.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |