US3357657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire barrier
Assignee: McDonnell Douglas Corp
•
Filing: 1966-04-27
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Granted: 1967-12-12
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Expires: 1986-04-27
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Ferrel
- 👤 Charles O Gunderson
- 👤 Raymond J Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:57
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/24; F02C7/25; B; B64; B64D; B64D45/00; B64D2045/009; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN COMBINATION: AN AIRCRAFT HAVING A SUPPORT STRUCTURE THEREON, AN AIRCRAFT ENGINE MOUNTED ON SAID SUPPORT STRUCTURE, A FIRE WALL MOUNTED BETWEEN SAID SUPPORT STRUCTURE AND SAID ENGINE FOR PREVENTING DAMAGE FROM AN ENGINE BURN-THROUGH FLAME, SAID FIRE WALL COMPRISING A SHEET OF LIGHT-WEIGHT HEAT RESISTANT MATERIAL AND A FIRE BARRIER THEREOVER, SAID FIRE BARRIER COMPRISING: A LAMINATE CLOTH MATERIAL INPREGNATED WITH AN ORGANIC RESIN SYSTEM WHEREBY AN ENGINE BURNTHROUGH FLAME IS DISPERSED AND DEFLECTED BACK TOWARD THE ENGINE.
Claim 2
Dependent Claim
79 words
IN COMBINATION: AN AIRCRAFT HAVING A SUPPORT STRUCTURE THEREON, AN AIRCRAFT ENGINE MOUNTED ON SAID SUPPORT STRUCTURE, A FIRE WALL MOUNTED BETWEEN SAID SUPPORT STRUCTURE AND SAID ENGINE FOR PREVENTING DAMAGE FROM AN ENGINE BURN-THROUGH FLAME, SAID FIRE WALL COMPRISING A SHEET OF LIGHT-WEIGHT HEAT RESISTANT MATERIAL AND A FIRE BARRIER THEREOVER, SAID FIRE BARRIER COMPRISING: A LAMINATE CLOTH MATERIAL INPREGNATED WITH AN ORGANIC RESIN SYSTEM WHEREBY AN ENGINE BURNTHROUGH FLAME IS DISPERSED AND DEFLECTED BACK TOWARD THE ENGINE.
References Cited (Backward Citations)
US2968920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |