Patent US3133693A successfully refreshed from Google Patents.
US3133693A
Expired / Lapsed
US
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Sump seal system
Assignee: General Electric Co
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Filing: 1962-05-17
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Granted: 1964-05-19
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Expires: 1982-05-17
Abstract
No abstract record available.
Inventors
- 👤 Holl Peter Matthew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:48
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/05; F04D29/056; F04D29/059; F01; F01D; F01D11/00; F01D11/02; F01D11/04; F01D25/00; F01D25/18; F01D25/183; F02; F02C; F02C7/00; F02C7/12; F02C7/16; F02C7/18; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN OIL SUMP SEALING SYSTEM FOR A GAS TURBINE ENGINE COMPRISING, AN ENGINE FRAME, A BEARING IN SAID FRAME, A SUPPORT MEMBER CANTILEVERED AT ONE END ON SAID FRAME AND EXTENDING DOWNSTREAM THEREOF, A SECOND BEARING CARRIED ON THE SUPPORT AT THE OTHER END, A HOLLOW SHAFT SUPPORTED IN SAID BEARINGS FOR ROTATION, AN IMPELLER ON SAID SHAFT UPSTREAM OF AND SPACED ADJACENT SAID FRAME, A TURBINE ON SAID SHAFT DOWNSTREAM OF SAID SECOND BEARING, A BOLT EXTENDING THROUGH SAID SHAFT AND SPACED THEREFROM TO FORM AN ANNULUS, SAID BOLT CONNECTING SAID IMPELLER AND TURBINE IN COMPRESSION AGAINST SAID BEARINGS WHEREBY AN OIL SUMP IS FORMED BY SAID FRAME, SUPPORT MEMBER AND BEARINGS,
Claim 2
Dependent Claim
113 words
AN OIL SUMP SEALING SYSTEM FOR A GAS TURBINE ENGINE COMPRISING, AN ENGINE FRAME, A BEARING IN SAID FRAME, A SUPPORT MEMBER CANTILEVERED AT ONE END ON SAID FRAME AND EXTENDING DOWNSTREAM THEREOF, A SECOND BEARING CARRIED ON THE SUPPORT AT THE OTHER END, A HOLLOW SHAFT SUPPORTED IN SAID BEARINGS FOR ROTATION, AN IMPELLER ON SAID SHAFT UPSTREAM OF AND SPACED ADJACENT SAID FRAME, A TURBINE ON SAID SHAFT DOWNSTREAM OF SAID SECOND BEARING, A BOLT EXTENDING THROUGH SAID SHAFT AND SPACED THEREFROM TO FORM AN ANNULUS, SAID BOLT CONNECTING SAID IMPELLER AND TURBINE IN COMPRESSION AGAINST SAID BEARINGS WHEREBY AN OIL SUMP IS FORMED BY SAID FRAME, SUPPORT MEMBER AND BEARINGS,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |