US4111689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of storing hydrogen
Assignee: Individual
•
Filing: 1976-02-09
•
Granted: 1978-09-05
•
Expires: 1996-02-09
Abstract
Abstract A method of storing hydrogen in which gaseous hydrogen is sorbed in titanium-vanadium-manganese and titanium-vanadium-iron alloys at room temperature and moderate
Inventors
- 👤 James Liu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:28
CPC Classifications
C; C22; C22C; C22C30/00; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; C01B6/00; C01B6/24; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S420/00; Y10S420/90
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
50 words
An alloy for reversibly storing hydrogen which enters into an exothermic reaction with hydrogen to form a complex therewith consisting essentially of about 31-46 weight percent titanium, 5-33 weight percent vanadium and 36-53 weight percent of a metal selected from the group consisting of iron and manganese and mixtures thereof.
Claim 2
Dependent Claim
50 words
An alloy for reversibly storing hydrogen which enters into an exothermic reaction with hydrogen to form a complex therewith consisting essentially of about 31-46 weight percent titanium, 5-33 weight percent vanadium and 36-53 weight percent of a metal selected from the group consisting of iron and manganese and mixtures thereof.
Claim 3
Dependent Claim
19 words
The alloy of claim 1 consisting essentially of by weight percent about 31.1% titanium, 33.1% vanadium and 35.7% manganese.
Claim 4
Dependent Claim
19 words
The alloy of claim 1 consisting essentially of by weight percent about 42% titanium, 9% vanadium, and 49% manganese.
Claim 5
Dependent Claim
19 words
The alloy of claim 1 consisting essentially of by weight percent about 31% titanium, 33% vanadium, and 36% iron.
Claim 6
Dependent Claim
18 words
The alloy of claim 1 consisting essentially of by weight about 42% titanium, 8.9% vanadium and 49% iron.
References Cited (Backward Citations)
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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) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |