Patent US3188803A successfully refreshed from Google Patents.
US3188803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet engines
Assignee: Rolls Royce PLC
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Filing: 1962-07-27
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Granted: 1965-06-15
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Expires: 1982-07-27
Abstract
No abstract record available.
Inventors
- 👤 Maguire Addison Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:12
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/12; F02K1/1246; F02K1/1223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A JET ENGINE PROVIDED WITH A CONVERGENT-DIVERGENT NOZZLE, SAID NOZZLE COMPRISING AN ASSEMBLY OF LONGITUDINALLY EXTENDING NOZZLE MEMBERS, EACH BEING FORMED BY MEMBER SECTIONS HINGED TOGETHER INTERMEDIATE THE LENGTH THEREOF AND WHICH MAY BE MOVED IN OVERLAPPING RELATIONSHIP TO VARY THE SIZE OF THE THROAT OF THE NOZZLE, SUCH MOVEMENT OF THE NOZZLE MEMBERS INVOLVING RADIAL MOVEMENT OF THE DOWNSTREAM ENDS OF EACH SECTION, AN ASSEMBLY OF RADIALLY MOVABLE CASING MEMBERS PIVOTALLY MOUNTED AT THEIR UPSTREAM ENDS AND WITHIN WHICH THE SAID NOZZLE MEMBERS ARE MOUNTED, LINKAGE MEANS CONNECTING THE ASSEMBLIES OF NOZZLE MEMBERS AND CASING MEMBERS TOGETHER, WHEREBY RADIALLY INWARD AND OUTWARD MOVEMENT OF THE DOWNSTREAM ENDS OF THE CASING MEMBERS IS RESPECTIVELY ACCOMPANIED BY RADIALLY INWARD AND OUTWARD MOVEMENT OF THE NOZZLE MEMBERS, POWER MEANS FOR EFFECTING AXIAL MOVEMENT OF THE CASING MEMBERS, AND CAM MEANS FOR MOVING SAID CASING MEMBERS TOWARDS AND AWAY FROM EACH OTHER ON AXIAL MOVEMENT OF THE CASING MEMBERS IN AN UPSTREAM AND IN A DOWNSTREAM DIRECTION RESPECTIVELY.
Claim 2
Dependent Claim
165 words
A JET ENGINE PROVIDED WITH A CONVERGENT-DIVERGENT NOZZLE, SAID NOZZLE COMPRISING AN ASSEMBLY OF LONGITUDINALLY EXTENDING NOZZLE MEMBERS, EACH BEING FORMED BY MEMBER SECTIONS HINGED TOGETHER INTERMEDIATE THE LENGTH THEREOF AND WHICH MAY BE MOVED IN OVERLAPPING RELATIONSHIP TO VARY THE SIZE OF THE THROAT OF THE NOZZLE, SUCH MOVEMENT OF THE NOZZLE MEMBERS INVOLVING RADIAL MOVEMENT OF THE DOWNSTREAM ENDS OF EACH SECTION, AN ASSEMBLY OF RADIALLY MOVABLE CASING MEMBERS PIVOTALLY MOUNTED AT THEIR UPSTREAM ENDS AND WITHIN WHICH THE SAID NOZZLE MEMBERS ARE MOUNTED, LINKAGE MEANS CONNECTING THE ASSEMBLIES OF NOZZLE MEMBERS AND CASING MEMBERS TOGETHER, WHEREBY RADIALLY INWARD AND OUTWARD MOVEMENT OF THE DOWNSTREAM ENDS OF THE CASING MEMBERS IS RESPECTIVELY ACCOMPANIED BY RADIALLY INWARD AND OUTWARD MOVEMENT OF THE NOZZLE MEMBERS, POWER MEANS FOR EFFECTING AXIAL MOVEMENT OF THE CASING MEMBERS, AND CAM MEANS FOR MOVING SAID CASING MEMBERS TOWARDS AND AWAY FROM EACH OTHER ON AXIAL MOVEMENT OF THE CASING MEMBERS IN AN UPSTREAM AND IN A DOWNSTREAM DIRECTION RESPECTIVELY.
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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |