US3409970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine rear gas seal replacement fixture on j-57 engine
Assignee: DANTE C DI PIETRA
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Filing: 1966-08-12
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Granted: 1968-11-12
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Expires: 1986-08-12
Abstract
No abstract record available.
Inventors
- 👤 Pietra Dante C Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:00
CPC Classifications
F; F01; F01D; F01D11/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49719; Y10T29/53; Y10T29/53909; Y10T29/53913; Y10T29/53943; Y10T29/53952; Y10T29/53978; Y10T29/53983
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A FIXTURE FOR REPLACING CIRCULAR REAR GAS SEALS IN REAR SHAFT BEARING SUPPORT HOUSINGS IN TURBOJET ENGINES HAVING A CYLINDRICAL HOUSING FOR RECEIVING THE SEAL WHICH IS FORMED WITH A PLURALITY OF RADIAL RIVET RECEIVING HOLES THEREIN DISPOSED IN A PLANE NORMAL TO THE AXIS OF THE HOUSING IN PREDETERMINED SPACED RELATION FROM THE SEAL RECEIVING END OF THE HOUSING FOR RECEIVING RIVETS FOR SECURING THE GAS SEAL IN PREDETERMINED POSITION IN THE HOUSING COMPRISING: A CIRCULAR PLATE SHAPED TO FIT AND BE GUIDABLY RECEIVED INTO THE CYLINDRICAL HOUSING HAVING A CIRCULAR GAS SEAL SUPPORTING SURFACE ON ONE SIDE THEREOF FOR POSITIONING THE CIRCULAR GAS SEAL THEREON IN CONCENTRIC CONTACTING RELATION THERETO, CLAMPING MEANS CARRIED BY SAID PLATE FOR REMOVABLY SECURING SAID SEAL AGAINST SAID SURFACE IN CONCENTRIC RELATION FOR INSERTION OF SAID PLATE AND SAID SEAL THEREON INTO SAID HOUSING, SAID PLATE HAVING AN ANNULAR RADIALLY PROJECTING STOP FLANGE ADJACENT THE OPPOSITE SIDE THEREOF SPACED
Claim 2
Dependent Claim
156 words
A FIXTURE FOR REPLACING CIRCULAR REAR GAS SEALS IN REAR SHAFT BEARING SUPPORT HOUSINGS IN TURBOJET ENGINES HAVING A CYLINDRICAL HOUSING FOR RECEIVING THE SEAL WHICH IS FORMED WITH A PLURALITY OF RADIAL RIVET RECEIVING HOLES THEREIN DISPOSED IN A PLANE NORMAL TO THE AXIS OF THE HOUSING IN PREDETERMINED SPACED RELATION FROM THE SEAL RECEIVING END OF THE HOUSING FOR RECEIVING RIVETS FOR SECURING THE GAS SEAL IN PREDETERMINED POSITION IN THE HOUSING COMPRISING: A CIRCULAR PLATE SHAPED TO FIT AND BE GUIDABLY RECEIVED INTO THE CYLINDRICAL HOUSING HAVING A CIRCULAR GAS SEAL SUPPORTING SURFACE ON ONE SIDE THEREOF FOR POSITIONING THE CIRCULAR GAS SEAL THEREON IN CONCENTRIC CONTACTING RELATION THERETO, CLAMPING MEANS CARRIED BY SAID PLATE FOR REMOVABLY SECURING SAID SEAL AGAINST SAID SURFACE IN CONCENTRIC RELATION FOR INSERTION OF SAID PLATE AND SAID SEAL THEREON INTO SAID HOUSING, SAID PLATE HAVING AN ANNULAR RADIALLY PROJECTING STOP FLANGE ADJACENT THE OPPOSITE SIDE THEREOF SPACED
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |