US3143445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation of gaseous mixtures for inflatable devices
Assignee: Specialties Development Corp
•
Filing: 1961-11-03
•
Granted: 1964-08-04
•
Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 Lester V Hebenstreit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:52
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/04; F42B3/045; B; B01; B01J; B01J7/00; B63; B63C; B63C9/00; B63C9/08; B63C9/18; B64; B64C; B64C35/00; C; C06; C06D; C06D5/00; C06D5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A CHARGE FOR PRODUCING A MIXTURE OF COOL GASES UNDER LOW PRESSURE CONSISTING ESSENTIALLY OF ABOUT 0.57 TO ABOUT 0.67 POUNT OF A HOT GA-GENERATING PYROTECHNIC SUBSTANCE, SAID PYROTECHNIC SUBSTANCE BEING ONE WHICH PRODUCES ABOUT 992 TO ABOUT 1165 B.T.U. WHEN SAID 0.57 TO 0.67 POUND OF SUBSTANCE IS IGNITED, AN EXPANDABLE FLUID COOLANT ISOLATED FROM AND SURROUNDING SAID SUBSTANCE, SAID COOLANT CONSISTING ESSENTIALLY OF ABOUT 6.89 TO ABOUT 7.33 POUNDS OF CARBON DIOXIDE AND ABOUT 0.46 TO ABOUT 0.90 POUND OF ETHYL ALCOHOL, SAID CHARGE BEING A TOTAL WEIGHT OF ABOUT 7.92 TO ABOUT 8.90 POUNDS, SAID PYROTECHNIC SUBSTANCE AND SAID ISOLATED COOLANT BEING OF AN ARRANGEMENT TO CAUSE SAID ISOLATED COOLANT TO ADMIX WITH HOT GASES TO BE GENERATED BY SAID PYROTECHNIC SUBSTANCE WHEN SAID PYROTECHNIC SUBSTANCE IS IGNITED.
Claim 2
Dependent Claim
131 words
A CHARGE FOR PRODUCING A MIXTURE OF COOL GASES UNDER LOW PRESSURE CONSISTING ESSENTIALLY OF ABOUT 0.57 TO ABOUT 0.67 POUNT OF A HOT GA-GENERATING PYROTECHNIC SUBSTANCE, SAID PYROTECHNIC SUBSTANCE BEING ONE WHICH PRODUCES ABOUT 992 TO ABOUT 1165 B.T.U. WHEN SAID 0.57 TO 0.67 POUND OF SUBSTANCE IS IGNITED, AN EXPANDABLE FLUID COOLANT ISOLATED FROM AND SURROUNDING SAID SUBSTANCE, SAID COOLANT CONSISTING ESSENTIALLY OF ABOUT 6.89 TO ABOUT 7.33 POUNDS OF CARBON DIOXIDE AND ABOUT 0.46 TO ABOUT 0.90 POUND OF ETHYL ALCOHOL, SAID CHARGE BEING A TOTAL WEIGHT OF ABOUT 7.92 TO ABOUT 8.90 POUNDS, SAID PYROTECHNIC SUBSTANCE AND SAID ISOLATED COOLANT BEING OF AN ARRANGEMENT TO CAUSE SAID ISOLATED COOLANT TO ADMIX WITH HOT GASES TO BE GENERATED BY SAID PYROTECHNIC SUBSTANCE WHEN SAID PYROTECHNIC SUBSTANCE IS IGNITED.
References Cited (Backward Citations)
US164818A
Cited
US923801A
Cited
US1008646A
Cited
US1328088A
Cited
US1339431A
Cited
US1659384A
Cited
US2028651A
Cited
US2478958A
Cited
US2687541A
Cited
US2886424A
Cited
US2989381A
Cited
US3049872A
Cited
US3024595A
Cited
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 |