Patent US3074688A successfully refreshed from Google Patents.
US3074688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine drive having oil pump
Assignee: Bendix Corp
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Filing: 1959-04-27
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Granted: 1963-01-22
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Russell T Demuth
- 👤 Donald M Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:23
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/36; F16N7/363; F01; F01D; F01D25/00; F01D25/18; F01D25/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A GAS TURBINE DRIVE UNIT FOR AIRCRAFT COMPRISED OF A TURBINE WHEEL HAVING A DRIVE SHAFT EXTENDING FROM ONE SIDE, PLANETARY GEAR MEANS CONNECTED TO SAID DRIVE SHAFT SAID PLANETARY GEAR MEANS INCLUDING A CONICAL OUTPUT MEMBERS HAVING A RING GEAR, STATIONARY SUPPORT MEANS SURROUNDING SAID SHAFT AND HAVING TWO SPACED BEARING ROTATABLY SUPPORTING SAID SHAFT, AN ANNULAR OIL SUMP MEANS ENCASING SAID GEAR MEANS AND CARRIED BY SAID OUTPUT MEMBER AND ROTATABLE THEREWITH, STATIONARY OIL SCOOP MEANS EXTENDING RADIALLY FROM SAID SUPPORT MEANS INTO SAID OIL SUMP MEANS AND ARRANGED SO THAT, WHEN SAID OIL SUMP MEANS IS ROTATED, OIL UNDER A CENTRIFUGAL PRESSURE HEAD IS PICKED UP BY SAID SCOOP MEANS AND DELIVERED RADIALLY-INWARDLY UNDER PRESSURE, AND LUBRICATING MEANS CONNECTED TO SAID OIL SCOOP MEANS AND ARRANGED TO PASS OIL TO SAID BEARINGS AND SAID PLANETARY GEAR MEANS.
Claim 2
Dependent Claim
140 words
A GAS TURBINE DRIVE UNIT FOR AIRCRAFT COMPRISED OF A TURBINE WHEEL HAVING A DRIVE SHAFT EXTENDING FROM ONE SIDE, PLANETARY GEAR MEANS CONNECTED TO SAID DRIVE SHAFT SAID PLANETARY GEAR MEANS INCLUDING A CONICAL OUTPUT MEMBERS HAVING A RING GEAR, STATIONARY SUPPORT MEANS SURROUNDING SAID SHAFT AND HAVING TWO SPACED BEARING ROTATABLY SUPPORTING SAID SHAFT, AN ANNULAR OIL SUMP MEANS ENCASING SAID GEAR MEANS AND CARRIED BY SAID OUTPUT MEMBER AND ROTATABLE THEREWITH, STATIONARY OIL SCOOP MEANS EXTENDING RADIALLY FROM SAID SUPPORT MEANS INTO SAID OIL SUMP MEANS AND ARRANGED SO THAT, WHEN SAID OIL SUMP MEANS IS ROTATED, OIL UNDER A CENTRIFUGAL PRESSURE HEAD IS PICKED UP BY SAID SCOOP MEANS AND DELIVERED RADIALLY-INWARDLY UNDER PRESSURE, AND LUBRICATING MEANS CONNECTED TO SAID OIL SCOOP MEANS AND ARRANGED TO PASS OIL TO SAID BEARINGS AND SAID PLANETARY GEAR MEANS.
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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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |