Patent US3360313A successfully refreshed from Google Patents.
US3360313A
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Lubricating system for a bearing of a vertical lift gas turbine engine
Assignee: Rolls Royce PLC
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Filing: 1965-12-17
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Granted: 1967-12-26
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Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 Pratt Leslie James
- 👤 Arthur G Goss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:10
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C33/6685; F01; F01D; F01D25/00; F01D25/18; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C2360/00; F16C2360/23; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A LUBRICATING SYSTEM SUITABLE FOR A BEARING OF A VERTICAL LIFT GAS TURBINE ENGINE COMPRISING A BEARING, MEANS FOR SUPPLYING LUBRICANT TO THE BEARING, A SUMP CHAMBER, AT LEAST ONE DRAIN PASSAGE THROUGH WHICH LUBRICANT MAY DRAIN FROM THE BEARING TO THE SUMP CHAMBER, MEANS FOR RETURNING LUBRICANT FROM AT LEAST ONE AREA DISPOSED EXTERNALLY OF THE SUMP CHAMBER TO THE BEARING, THE SUMP CHAMBER HAVING A ROTATABLY MOUNTED WALL, A LUBRICANT TRAP IN THE UPPER PART OF THE SUMP CHAMBER INTO WHICH WILL DRAIN AT LEAST SOME OF THE LUBRICANT IN THE SUMP CHAMBER IF THE LATTER SHOULD BECOME INVERTED, AND AT LEAST ONE GROOVE IN THE INTERNAL SURFACE OF THE ROTATABLY MOUNTED WALL, WHICH GROOVE, WHEN THE SUMP CHAMBER IS UPRIGHT
Claim 2
Dependent Claim
123 words
A LUBRICATING SYSTEM SUITABLE FOR A BEARING OF A VERTICAL LIFT GAS TURBINE ENGINE COMPRISING A BEARING, MEANS FOR SUPPLYING LUBRICANT TO THE BEARING, A SUMP CHAMBER, AT LEAST ONE DRAIN PASSAGE THROUGH WHICH LUBRICANT MAY DRAIN FROM THE BEARING TO THE SUMP CHAMBER, MEANS FOR RETURNING LUBRICANT FROM AT LEAST ONE AREA DISPOSED EXTERNALLY OF THE SUMP CHAMBER TO THE BEARING, THE SUMP CHAMBER HAVING A ROTATABLY MOUNTED WALL, A LUBRICANT TRAP IN THE UPPER PART OF THE SUMP CHAMBER INTO WHICH WILL DRAIN AT LEAST SOME OF THE LUBRICANT IN THE SUMP CHAMBER IF THE LATTER SHOULD BECOME INVERTED, AND AT LEAST ONE GROOVE IN THE INTERNAL SURFACE OF THE ROTATABLY MOUNTED WALL, WHICH GROOVE, WHEN THE SUMP CHAMBER IS UPRIGHT
References Cited (Backward Citations)
FR1196785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |