US3932242A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid propellant with butyl rubber binder
Assignee: Individual
•
Filing: 1961-05-08
•
Granted: 1976-01-13
•
Expires: 1981-05-08
Abstract
Abstract 1. A solid propellant charge for rocket motors consisting essentially of a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 10-20% by weight and a solid inorganic strong oxidizing salt in the proportion of 80-90% by weight.
Inventors
- 👤 Charles E. Bartley
- 👤 Lawrence R. Settlemire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:04
CPC Classifications
C; C06; C06B; C06B23/00; C06B23/007; C06B45/00; C06B45/04; C06B45/06; C06B45/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
41 words
A solid propellant charge for rocket motors consisting essentially of a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 10-20% by weight and a solid inorganic strong oxidizing salt in the proportion of 80-90% by weight.
Claim 2
Dependent Claim
41 words
A solid propellant charge for rocket motors consisting essentially of a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 10-20% by weight and a solid inorganic strong oxidizing salt in the proportion of 80-90% by weight.
Claim 3
Dependent Claim
13 words
The solid propellant charge of claim 1 wherein the oxidizer is ammonium nitrate.
Claim 4
Dependent Claim
41 words
A solid propellant charge for rocket motors consisting essentially of a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 5-25% by weight and a solid inorganic strong oxidizing salt in the proportion of 75-95% by weight.
Claim 5
Dependent Claim
41 words
A solid propellant charge for rocket motors consisting essentially of a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 5-25% by weight and a solid inorganic strong oxidizing salt in the proportion of 75-95% by weight.
Claim 6
Dependent Claim
13 words
The solid propellant charge of claim 3 wherein the oxidizer is ammonium nitrate.
Claim 7
Dependent Claim
54 words
A solid propellant charge for rocket motors containing a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 5-25% by weight with a solid inorganic strong oxidizing salt in the proportion of 70-90% by weight and ferric oxide as a burning rate catalyst in the proportion of 1/2-10% by weight.
Claim 8
Dependent Claim
54 words
A solid propellant charge for rocket motors containing a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 5-25% by weight with a solid inorganic strong oxidizing salt in the proportion of 70-90% by weight and ferric oxide as a burning rate catalyst in the proportion of 1/2-10% by weight.
Claim 9
Dependent Claim
52 words
A solid propellant charge for rocket motors containing a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 5.25% by weight with an ammonium nitrate oxidizer in the proportion of 70-90% by weight and ferric oxide as a burning rate catalyst in the proportion of 1/2-10% by weight.
Claim 10
Dependent Claim
52 words
A solid propellant charge for rocket motors containing a formed vulcanized mixture of rubbery isobutylene-isoprene copolymer fuel binder in the proportion of 5.25% by weight with an ammonium nitrate oxidizer in the proportion of 70-90% by weight and ferric oxide as a burning rate catalyst in the proportion of 1/2-10% by weight.
References Cited (Backward Citations)
US3018201A
Cited
US3249475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-12 | 1979-07-14 | 1980-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-12 | 1983-07-14 | 1984-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-12 | 1987-07-14 | 1988-01-13 | $7700.00 | Window Closed / Lapsed |