Patent US2697723A successfully refreshed from Google Patents.
US4096641A
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Method for storing hydrogen in nickel-calcium
Assignee: ERGENICS Inc A NJ CORP
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Filing: 1976-11-08
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Granted: 1978-06-27
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Expires: 1996-11-08
Abstract
Abstract A calcium-nickel compound, CaNi 5 , is used to store hydrogen at sub-atmospheric pressures. Charging of the calcium-nickel compound with hydrogen can be accomplished at sub-atmospheric as well as at high pressures. Stored hydrogen can be released from a valved vessel containing calcium-nickel by applicatin of a vacuum or by heating.
Inventors
- 👤 Gary Dale Sandrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:57
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; C22; C22C; C22C19/00; C22C19/03; F; F17; F17C; F17C11/00; F17C11/005; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S420/00; Y10S420/90
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
An improved method for hydrogen storage, the improvement comprising: storing hydrogen in a CaNi 5 compound at a hydrogen partial pressure below about one atmosphere absolute and at temperatures below about 40° C.
Claim 2
Dependent Claim
33 words
An improved method for hydrogen storage, the improvement comprising: storing hydrogen in a CaNi 5 compound at a hydrogen partial pressure below about one atmosphere absolute and at temperatures below about 40° C.
Claim 3
Dependent Claim
21 words
A method as defined in claim 1, wherein hydrogen is stored at a hydrogen partial pressure below about 0.6 atmosphere absolute.
References Cited (Backward Citations)
GB1291976A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-26 | 1981-12-26 | 1982-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-26 | 1985-12-26 | 1986-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-26 | 1989-12-26 | 1990-06-27 | $7700.00 | Window Closed / Lapsed |