US3862052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen generating compositions and methods
Assignee: United States Department of the Navy
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Filing: 1973-02-23
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Granted: 1975-01-21
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Expires: 1993-02-23
Abstract
Abstract Solid compositions, stable at ambient temperatures, which generate hydrogen gas when heated to initiate the reaction between the components of the composition. The compositions comprise certain ammonium salts such as NH4Cl and complex hydrides such as LiAlH4 and NaAlH4 or certain hydrazine derivates such as N2H6Cl2 and complex hydrides such as NaBH4.
Inventors
- 👤 Werner F Beckert
- 👤 Ottmar H Dengel
- 👤 Rodger W Mckain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:17
CPC Classifications
C; C01; C01B; C01B3/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
14 words
A composition according to claim 1 wherein said compounds are present in stoichiometric amounts.
Claim 2
Dependent Claim
25 words
A composition according to claim 1 wherein said compounds are present in amounts such that there is a stoichiometric excess of one of the components.
Claim 3
Dependent Claim
20 words
The composition of claim 1 wherein said acid group is selected from the group consisting of a halogen and sulfate.
Claim 4
Dependent Claim
16 words
A composition according to claim 4 wherein the composition comprises a mixture of N2H6Cl2 and LiBH4.
Claim 5
Dependent Claim
31 words
The composition of claim 1 wherein at least one component of the mixture is coated with a polymer selected from the group consisting of polystyrene, polyethylene, polybutadiene, polycarbonate and hydroxyvinyl resins.
Claim 6
Dependent Claim
16 words
A composition According to claim 7 which comprises a mixture of N2H6Cl2, NH4F, LiAlH4 and NaBH4.
Claim 7
Dependent Claim
22 words
The composition of claim 7 wherein said acid group in both occurrences is selected from the group consisting of halogen and sulfate.
Claim 8
Dependent Claim
31 words
The composition of claim 7 wherein at least one component of the mixture is coated with a polymer selected from the group consisting of polystyrene, polyethylene, polybutadiene, polycarbonate and hydroxyvinyl resins.
Claim 9
Dependent Claim
14 words
A composition according to claim 7 wherein said compounds are present in stoichiometric amounts.
Claim 10
Dependent Claim
25 words
A composition according to claim 7 wherein said compounds are present in such amounts that there is a stoichiometric excess of one of the components.
References Cited (Backward Citations)
US3405068A
Cited
US3450638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |