US3267664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and device for cooling
Assignee: North American Aviation Corp
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Filing: 1963-03-19
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Granted: 1966-08-23
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Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 Robert D Jones
- 👤 Robert N Macdonald
- 👤 Charles P Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:32
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/62; F02K9/64
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A METHOD OF COOLING A THRUST CHAMBER AND IMPARTING THRUST THERETO WHICH COMPRISES: PROVIDING A PROPELLANT AT A FIRST TEMPERATURE, SAID PROPELLANT HAVING A HIGHER HEAT ABSORPTION CHARACTERISTIC AT A HIGHER TEMPERATURE THAN AT SAID FIRST TEMPERATURE, DIVERTING A PORTION OF SAID PROPELLANT AND CONVEYING SAID PORTION IN HEAT TRANSFER RELATIONSHIP TO SAID THRUST CHAMBER SO AS TO EXPAND SAID PROPELLANT PRE-HEATING SAID PORTION WHEREBY THE HEAT ABSORPTION CHARACTERISTICS OF SAID PROPELLANT IS INCREASED, ACCCELERATING SAID PORTION OF SAID PROPELLANT ALLOWING SAID PROPELLANT PORTION TO EXPAND OVERBOARD, WHEREBY SAID THRUST CHAMBER IS COOLED BY SAID PROPELLANT PORTION AND THRUST IS IMPARTED TO SAID THRUST CHAMBER BY SAID PROPELLANT PORTION.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |