US4064226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the generation of hydrogen
Assignee: Siemens AG
•
Filing: 1976-05-06
•
Granted: 1977-12-20
•
Expires: 1996-05-06
Abstract
Abstract A method and apparatus for generating gaseous hydrogen by the reaction of a metal and an aqueous salt solution is provided wherein the method comprises: A. forming a powder from a pressed blank of the metal; and B. introducing said powder as it is formed into an aqueous salt solution.
Inventors
- 👤 Franz Becker
- 👤 Philipp Jager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:34
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/061; C01B3/08; C01B3/10; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
51 words
A method for generating hydrogen by the reaction of a metal with an aqueous salt solution comprising: a. mechanically forming a powder from a pressed blank of the metal out of the presence of the aqueous salt solution; b. introducing said powder as it is formed into said aqueous salt solution.
Claim 2
Independent Claim
51 words
A method for generating hydrogen by the reaction of a metal with an aqueous salt solution comprising: a. mechanically forming a powder from a pressed blank of the metal out of the presence of the aqueous salt solution; b. introducing said powder as it is formed into said aqueous salt solution.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein the rate of forming the powder from a pressed blank of the metal is controlled by the pressure of the generated hydrogen.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said metal is magnesium or a mixture of magnesium and aluminum.
Claim 5
Independent Claim
68 words
A method for generating hydrogen by the reaction of metals with an aqueous salt solution comprising: a. introducing a pressed metal blank over an aqueous salt solution; b. mechanically forming a powder from said metal blank; c. adding said powder as it is formed to said aqueous salt solution; and d. controlling at least one of steps (a) and (b) by the hydrogen pressure generated by the reaction.
Claim 6
Independent Claim
68 words
A method for generating hydrogen by the reaction of metals with an aqueous salt solution comprising: a. introducing a pressed metal blank over an aqueous salt solution; b. mechanically forming a powder from said metal blank; c. adding said powder as it is formed to said aqueous salt solution; and d. controlling at least one of steps (a) and (b) by the hydrogen pressure generated by the reaction.
Claim 7
Independent Claim
100 words
A method for generating hydrogen by the reaction of a metal with an aqueous salt solution in a reaction vessel comprising: a. feeding a pressed metal blank to the reaction vessel over the aqueous salt solution; b. mechanically forming metal powder from said blank whereby said metal powder drops into said salt solution as it is formed; c. feeding additional aqueous salt solution to the reaction vessel for reaction with said metal powder as it is formed; and d. controlling the feed of said salt solution to said reaction vessel by the amount of metal powder formed from said blank.
Claim 8
Independent Claim
100 words
A method for generating hydrogen by the reaction of a metal with an aqueous salt solution in a reaction vessel comprising: a. feeding a pressed metal blank to the reaction vessel over the aqueous salt solution; b. mechanically forming metal powder from said blank whereby said metal powder drops into said salt solution as it is formed; c. feeding additional aqueous salt solution to the reaction vessel for reaction with said metal powder as it is formed; and d. controlling the feed of said salt solution to said reaction vessel by the amount of metal powder formed from said blank.
Claim 9
Independent Claim
95 words
A method for generating hydrogen by the reaction of a metal with an aqueous salt solution in a reaction vessel comprising: a. feeding a pressed metal blank to the reaction vessel over the aqueous salt solution; b. mechanically forming metal powder from said blank whereby said metal powder drops into said salt solution as it is formed; c. feeding additional salt solution to the reaction vessel for reaction with said metal powder as it is formed; d. inducing and maintaining continuous closed circulation of said aqueous salt solution into and out of said reaction vessel.
Claim 10
Independent Claim
95 words
A method for generating hydrogen by the reaction of a metal with an aqueous salt solution in a reaction vessel comprising: a. feeding a pressed metal blank to the reaction vessel over the aqueous salt solution; b. mechanically forming metal powder from said blank whereby said metal powder drops into said salt solution as it is formed; c. feeding additional salt solution to the reaction vessel for reaction with said metal powder as it is formed; d. inducing and maintaining continuous closed circulation of said aqueous salt solution into and out of said reaction vessel.
Claim 11
Dependent Claim
22 words
The method of claim 6 wherein said aqueous salt solution is passed through a heat exchanger before circulation into said reaction vessel.
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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |