Patent US5477098A successfully refreshed from Google Patents.
US3170288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle seal
Assignee: Individual
•
Filing: 1962-06-22
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Granted: 1965-02-23
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Salvatore J Penza
- 👤 Frederick L Haake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:46
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/97; F02K9/978
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN COMBINATION WITH AN EXHAUST NOZZLE OF A JET PROPULSION ENGINE, A DEVICE FOR SEALING THE NOZZLE FROM AN EXTERNAL ENVIRONMENT AND CAPABLE OF AUTOMATICALLY OPENING THE NOZZLE UPON STARTING THE ENGINE COMPRISING: (A) AN INFLATED MEANS CONSTRUCTED OF A MATERIAL THAT IS IMPERVIOUS TO FLUIDS; (B) SAID MEANS BEING DISPOSED WITHIN SAID NOZZLE AND SEALABLY ENGAGING AROUND AN INTERIOR SURFACE OF THE NOZZLE; (C) SAID MEANS EXTENDING ACROSS AND BLOCKING THE NOZZLE''S PASSAGE SO AS TO SEAL THE INTERIOR OF THE JET ENGINE FROM SAID EXTERNAL ENVIRONMENT; (D) SAID MEANS FURTHER BEING CONSTRUCTED OF A MATERIAL THAT IS DESTRUCIBLE BY THE JET STREAM FROM THE ENGINE WHEREBY UPON STARTING THE ENGINE THE MEANS WILL BE COLLAPSED BY PUNCTURING DUE TO THE JET STREAM AND THE BAG WILL THEN BE DISCHARGED FROM THE NOZZLE SO AS TO ALLOW THE IMMEDIATE AND UNINTERRUPTED OPERATION OF SAID NOZZLE.
Claim 2
Dependent Claim
146 words
IN COMBINATION WITH AN EXHAUST NOZZLE OF A JET PROPULSION ENGINE, A DEVICE FOR SEALING THE NOZZLE FROM AN EXTERNAL ENVIRONMENT AND CAPABLE OF AUTOMATICALLY OPENING THE NOZZLE UPON STARTING THE ENGINE COMPRISING: (A) AN INFLATED MEANS CONSTRUCTED OF A MATERIAL THAT IS IMPERVIOUS TO FLUIDS; (B) SAID MEANS BEING DISPOSED WITHIN SAID NOZZLE AND SEALABLY ENGAGING AROUND AN INTERIOR SURFACE OF THE NOZZLE; (C) SAID MEANS EXTENDING ACROSS AND BLOCKING THE NOZZLE''S PASSAGE SO AS TO SEAL THE INTERIOR OF THE JET ENGINE FROM SAID EXTERNAL ENVIRONMENT; (D) SAID MEANS FURTHER BEING CONSTRUCTED OF A MATERIAL THAT IS DESTRUCIBLE BY THE JET STREAM FROM THE ENGINE WHEREBY UPON STARTING THE ENGINE THE MEANS WILL BE COLLAPSED BY PUNCTURING DUE TO THE JET STREAM AND THE BAG WILL THEN BE DISCHARGED FROM THE NOZZLE SO AS TO ALLOW THE IMMEDIATE AND UNINTERRUPTED OPERATION OF SAID NOZZLE.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |