Patent US4120153A successfully refreshed from Google Patents.
US4120153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid propellant gas generating device
Assignee: Olin Corp
•
Filing: 1964-05-21
•
Granted: 1978-10-17
•
Expires: 1984-05-21
Abstract
Abstract 1. In combination with a vessel forming a rocket motor combustion chamber, a rubber-base liner firmly adhering to the interior chamber wall, said rubber-base liner containing between about 2.5 and 30 percent by weight of an inorganic metal salt selected from the group consisting of zinc chromate, barium chromate, zinc phosphate, lead phosphate, potassium phosphate, and mixtures thereof, and a propellant charge substantially filling the lined portion of the chamber, said propellant charge firmly adhering to said liner.
Inventors
- 👤 Otto G. Schaffling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:51
CPC Classifications
F; F02; F02K; F02K9/00; F02K9/08; F02K9/32; F02K9/34; F02K9/346; C; C06; C06B; C06B45/00; C06B45/12; C08; C08K; C08K3/00; C08K3/02; C08K3/06; C08K3/18; C08K3/20; C08K3/22; C08K3/32; C08K5/00; C08K5/04; C08K5/14; C08K5/16; C08K5/29; C08K5/31; C08K5/32; C08K5/33; C08L; C08L13/00; C08L63/00; C08K3/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
77 words
In combination with a vessel forming a rocket motor combustion chamber, a rubber-base liner firmly adhering to the interior chamber wall, said rubber-base liner containing between about 2.5 and 30 percent by weight of an inorganic metal salt selected from the group consisting of zinc chromate, barium chromate, zinc phosphate, lead phosphate, potassium phosphate, and mixtures thereof, and a propellant charge substantially filling the lined portion of the chamber, said propellant charge firmly adhering to said liner.
Claim 2
Dependent Claim
77 words
In combination with a vessel forming a rocket motor combustion chamber, a rubber-base liner firmly adhering to the interior chamber wall, said rubber-base liner containing between about 2.5 and 30 percent by weight of an inorganic metal salt selected from the group consisting of zinc chromate, barium chromate, zinc phosphate, lead phosphate, potassium phosphate, and mixtures thereof, and a propellant charge substantially filling the lined portion of the chamber, said propellant charge firmly adhering to said liner.
Claim 3
Dependent Claim
25 words
The combination of claim 1 wherein said rubber-base liner is the reaction product of an epoxy resin and a copolymer of butadiene and acrylic acid.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein said inorganic metal salt is zinc chromate.
Claim 5
Dependent Claim
13 words
The combination of claim 1 wherein said inorganic metal salt is barium chromate.
Claim 6
Dependent Claim
13 words
The combination of claim 1 wherein said inorganic metal salt is zinc phosphate.
Claim 7
Dependent Claim
13 words
The combination of claim 1 wherein said inorganic metal salt is lead phosphate.
Claim 8
Dependent Claim
13 words
The combination of claim 1 wherein said inorganic metal salt is potassium phosphate.
Claim 9
Dependent Claim
33 words
The combination of claim 1 wherein said rubber-base liner is the reaction product of an epoxy resin and a copolymer of butadiene and acrylic acid, and said inorganic metal salt is zinc chromate.
References Cited (Backward Citations)
US3012508A
Cited
US2563265A
Cited
US2479470A
Cited
US3032437A
Cited
US3144829A
Cited
US3046829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |