US3143354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for swivelled nozzle
Assignee: RTX Corp
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Filing: 1961-05-16
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Granted: 1964-08-04
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Expires: 1981-05-16
Abstract
No abstract record available.
Inventors
- 👤 Philip P Newcomb
- 👤 Robert E Coburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:54
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/80; F02K9/84; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
IN A SWIVELLED NOZZLE HAVING A FIXED NOZZLE PORTION AND A MOVABLE NOZZLE PORTION COOPERATING TO FORM AN EXHAUST GAS PASSAGE AND BEING IN JUXTAPOSITION WITH A NARROW SPACE THEREBETWEEN AND BEARING MEANS EXTERNALLY OF SAID NOZZLE FOR SUPPORTING THE MOVABLE NOZZLE PORTION FOR ROTATION ABOUT THE AXIS OF THE BEARINGS, THE IMPROVEMENT OF A SEAL IN SAID NARROW SPACE COMPRISING A GROOVE IN AT LEAST ONE OF SAID PORTIONS, A HOLLOW RING IN SAID GROOVE HAVING FIRST, SECOND AND THIRD PERFORATIONS SELECTIVELY HAVING FIRST, SECOND AND THIRD PERFORATIONS SELECTIVELY POSITIONED SO THAT PERSSURIZED LUBRICAN INTRODUCED TO SAID RING ENTERS THE INTERIOR OF SAID RING THROUGH SAID FIRST PERFORMATION TO CAUSE SAID RING TO BEAR AGAINST SAID GROOVE, AND SO THAT LUBRICANT FROM THE INTERIOR OF SAID RING PASSES THROUGH SAID SECOND PERFORMATION INTO SAID GROOVE TO LUBRICATE BETWEEN SAID RING AND SAID GROOVE, AND SO THAT LUBRICANT FROM THE INTERIOR OF SAID RING PASSES THROUGH SAID THIRD PERFORATION INTO SAID NARROW SPACE ADJACENT SAID GAS PASSAGE.
Claim 2
Dependent Claim
167 words
IN A SWIVELLED NOZZLE HAVING A FIXED NOZZLE PORTION AND A MOVABLE NOZZLE PORTION COOPERATING TO FORM AN EXHAUST GAS PASSAGE AND BEING IN JUXTAPOSITION WITH A NARROW SPACE THEREBETWEEN AND BEARING MEANS EXTERNALLY OF SAID NOZZLE FOR SUPPORTING THE MOVABLE NOZZLE PORTION FOR ROTATION ABOUT THE AXIS OF THE BEARINGS, THE IMPROVEMENT OF A SEAL IN SAID NARROW SPACE COMPRISING A GROOVE IN AT LEAST ONE OF SAID PORTIONS, A HOLLOW RING IN SAID GROOVE HAVING FIRST, SECOND AND THIRD PERFORATIONS SELECTIVELY HAVING FIRST, SECOND AND THIRD PERFORATIONS SELECTIVELY POSITIONED SO THAT PERSSURIZED LUBRICAN INTRODUCED TO SAID RING ENTERS THE INTERIOR OF SAID RING THROUGH SAID FIRST PERFORMATION TO CAUSE SAID RING TO BEAR AGAINST SAID GROOVE, AND SO THAT LUBRICANT FROM THE INTERIOR OF SAID RING PASSES THROUGH SAID SECOND PERFORMATION INTO SAID GROOVE TO LUBRICATE BETWEEN SAID RING AND SAID GROOVE, AND SO THAT LUBRICANT FROM THE INTERIOR OF SAID RING PASSES THROUGH SAID THIRD PERFORATION INTO SAID NARROW SPACE ADJACENT SAID GAS PASSAGE.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |