US3097481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver
Assignee: —
•
Filing: —
•
Granted: 1963-07-16
•
Expires: 1980-07-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:21
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A PROPELLENT GRAIN, SAID GRAIN BEING DESIGNED TO BURN CONTINUOUSLY FROM ONE END WHICH IS AN INITIAL IGNITION SURFACE AND COMPRISING A SELF-OXIDANT PROPELLENT MATRIX, THE COMBUSTION OF WHICH GENERATED PROPELLENT GASES, SAID MATRIX CONTAINING EMBEDDED THEREIN AN ELONGATED METAL HEAT CONDUCTOR TUBE POSITIONED SUBSTANTIALLY NORMAL TO THE PLANE OF SAID INITIAL IGNITION SURFACE OF SAID GRAIN AND EXTENDING CONTINUOUSLY IN THE DIRECTION OF FLAME PROPAGATION FOR THE ENTIRE LENGTH OF SAID GRAIN, THE ENTIRE EXTERIOR SURFACE OF SAID METAL TUBE LYING WITHIN THE BODY OF THE PROPELLENT GRAIN BEING IN INTIMATE, GAS-SEALING CONTACT WITH THE PROPELLENT MATRIX, THE MAXIMUM WALL THICKNESS OF THE SAID METAL TUBE BEING ABOUT 0.05 INCH AND THE MAXIMUM INTERNAL DIAMETER OF THE TUBE BEING ABOUT 0.6 INCH, SAID METAL HEAT CONDUCTOR TUBE BEING ADAPTED TO SERVE AS A CHENNEL FOR CONTROLLABLE PASSAGE THERETHROUGH IN CONTACT WITH THE INTERIOR WALL SURFACE OF SAID METAL TUBE, DURING THE BURNING CYCLE OF THE GRAIN, OF FLUID, WHICH VENTS OUT OF THE BURNING END OF SAID GRAIN, SAID FLUID BEING AT A TEMPERATURE DIFFERENT FROM AND, THEREBY, CHANGING THAT OF SAID TUBE.
Claim 2
Dependent Claim
184 words
A PROPELLENT GRAIN, SAID GRAIN BEING DESIGNED TO BURN CONTINUOUSLY FROM ONE END WHICH IS AN INITIAL IGNITION SURFACE AND COMPRISING A SELF-OXIDANT PROPELLENT MATRIX, THE COMBUSTION OF WHICH GENERATED PROPELLENT GASES, SAID MATRIX CONTAINING EMBEDDED THEREIN AN ELONGATED METAL HEAT CONDUCTOR TUBE POSITIONED SUBSTANTIALLY NORMAL TO THE PLANE OF SAID INITIAL IGNITION SURFACE OF SAID GRAIN AND EXTENDING CONTINUOUSLY IN THE DIRECTION OF FLAME PROPAGATION FOR THE ENTIRE LENGTH OF SAID GRAIN, THE ENTIRE EXTERIOR SURFACE OF SAID METAL TUBE LYING WITHIN THE BODY OF THE PROPELLENT GRAIN BEING IN INTIMATE, GAS-SEALING CONTACT WITH THE PROPELLENT MATRIX, THE MAXIMUM WALL THICKNESS OF THE SAID METAL TUBE BEING ABOUT 0.05 INCH AND THE MAXIMUM INTERNAL DIAMETER OF THE TUBE BEING ABOUT 0.6 INCH, SAID METAL HEAT CONDUCTOR TUBE BEING ADAPTED TO SERVE AS A CHENNEL FOR CONTROLLABLE PASSAGE THERETHROUGH IN CONTACT WITH THE INTERIOR WALL SURFACE OF SAID METAL TUBE, DURING THE BURNING CYCLE OF THE GRAIN, OF FLUID, WHICH VENTS OUT OF THE BURNING END OF SAID GRAIN, SAID FLUID BEING AT A TEMPERATURE DIFFERENT FROM AND, THEREBY, CHANGING THAT OF SAID TUBE.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |