Patent US3273904A successfully refreshed from Google Patents.
US3273904A
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US
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Regenerator seal with diaphragm support
Assignee: Old Carco LLC
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Filing: 1963-10-07
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Granted: 1966-09-20
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 William I Chapman
- 👤 James H Whitfield
- 👤 Clinton P Atwood
- 👤 Jr William A Ziemke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:04
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/08; F02C7/10; F02C7/105; F28; F28D; F28D19/00; F28D19/04; F28D19/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A SEAL FOR THE REGENERATOR OF A GAS TURBINE ENGINE, RUBBING MEANS HAVING AN INNER SEALING SURFACE ADAPTED TO ENGAGE A MATING SURFACE OF SAID REGENERATOR TO DEFINE A SEAL BETWEEN HIGH AND LOW PRESSURE GASES, BASE MEANS CONFRONTING AN OUTER SIDE OF SAID RUBBING MEANS OPPOSITE SAID SEALING SURFACE AND BEING MOVABLE TOWARD AND FROM THE SAME, BRIDGE MEANS ENGAGING SAID OUTER SIDE OF SAID RUBBING MEANS, RESILIENT SEALING MEANS INCLUDING A FLEXIBLE DIAPHRAGM AND A FLEXIBLE DIAPHRAGM SUPPORT, SAID DIAPHRAGM SUPPORT HAVING ONE EDGE CONFINED BETWEEN PORTIONS OF SAID BRIDGE MEANS AND BASE MEANS TO EFFECT A FLUID SEAL THEREBETWEEN AND EXTENDING FROM SAID ONE EDGE TO OVERLAP THE ENGAGEMENT BETWEEN SAID BRIDGE MEANS AND RUBBING MEANS AND ENGAGE THE LATTER''S
Claim 2
Dependent Claim
124 words
IN A SEAL FOR THE REGENERATOR OF A GAS TURBINE ENGINE, RUBBING MEANS HAVING AN INNER SEALING SURFACE ADAPTED TO ENGAGE A MATING SURFACE OF SAID REGENERATOR TO DEFINE A SEAL BETWEEN HIGH AND LOW PRESSURE GASES, BASE MEANS CONFRONTING AN OUTER SIDE OF SAID RUBBING MEANS OPPOSITE SAID SEALING SURFACE AND BEING MOVABLE TOWARD AND FROM THE SAME, BRIDGE MEANS ENGAGING SAID OUTER SIDE OF SAID RUBBING MEANS, RESILIENT SEALING MEANS INCLUDING A FLEXIBLE DIAPHRAGM AND A FLEXIBLE DIAPHRAGM SUPPORT, SAID DIAPHRAGM SUPPORT HAVING ONE EDGE CONFINED BETWEEN PORTIONS OF SAID BRIDGE MEANS AND BASE MEANS TO EFFECT A FLUID SEAL THEREBETWEEN AND EXTENDING FROM SAID ONE EDGE TO OVERLAP THE ENGAGEMENT BETWEEN SAID BRIDGE MEANS AND RUBBING MEANS AND ENGAGE THE LATTER''S
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |