US3262636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine engine
Assignee: Rolls Royce PLC
•
Filing: 1964-08-24
•
Granted: 1966-07-26
•
Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Palfreyman Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:47
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/12; F02C7/16; F02C7/18; F02C7/04; F02C7/047; F02C7/14; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A GAS TURBINE ENGINE HAVING A DE-ICING DUCT, ENGINE COMPONENTS DISPOSED ADJACENT THE DE-ICING DUCT, MEANS FOR PASSING RELATIVELY WARM AIR THROUGH SAID DE-ICING DUCT TO REMOVE ICE FROM SAID COMPONENTS, A COOLING DUCT, FURTHER ENGINE COMPONENTS ADAPTED TO BE COOLED BY AIR FROM SAID COOLING DUCT, MEANS FOR PASSING RELATIVELY COOL AIR THROUGH SAID COOLING DUCT, AND VALVE MEANS FOR DIRECTING THE COOLING AIR THROUGH PART OF THE DE-ICING DUCT, WHEREBY THE COOLING AIR MAY BE COOLED.
Claim 2
Dependent Claim
78 words
A GAS TURBINE ENGINE HAVING A DE-ICING DUCT, ENGINE COMPONENTS DISPOSED ADJACENT THE DE-ICING DUCT, MEANS FOR PASSING RELATIVELY WARM AIR THROUGH SAID DE-ICING DUCT TO REMOVE ICE FROM SAID COMPONENTS, A COOLING DUCT, FURTHER ENGINE COMPONENTS ADAPTED TO BE COOLED BY AIR FROM SAID COOLING DUCT, MEANS FOR PASSING RELATIVELY COOL AIR THROUGH SAID COOLING DUCT, AND VALVE MEANS FOR DIRECTING THE COOLING AIR THROUGH PART OF THE DE-ICING DUCT, WHEREBY THE COOLING AIR MAY BE COOLED.
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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |