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US4152145A
Expired / Lapsed
US
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Mischmetal-nickel-aluminum alloys
Assignee: ERGENICS Inc A NJ CORP
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Filing: 1978-03-14
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Granted: 1979-05-01
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Expires: 1998-03-14
Abstract
Abstract A hydride forming alloy comprising of mischmetal, nickel and aluminum, having a composition responding approximately to the formula MM Ni.sub.(y-[x+z]) Al x Fe z where x is a number from 0.1 to 1.5, y is a number between 4.5 and 5.5, z is a number between 0 and 0.3 and "x+z" has a maximum of 1.5.
Inventors
- 👤 Gary D. Sandrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:31
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C01; C01B; C01B3/00; C01B3/0005; C01B3/001; C01B3/0018; C01B3/0031; C01B3/0047; C01B3/0057; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/32; Y10; Y10S; Y10S420/00; Y10S420/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
47 words
A mischmetal-nickel-aluminum alloy responding substantially to the formula MM Ni.sub.(y-[x+z]) Al.sub.x Fe.sub.z where MM signifies mischmetal, y is a number between 4.5 and 5.5, x is a number between 0.1 and 1.5, z is a number between 0 and 0.3 and "x+z" has a maximum of 1.5.
Claim 2
Dependent Claim
47 words
A mischmetal-nickel-aluminum alloy responding substantially to the formula MM Ni.sub.(y-[x+z]) Al.sub.x Fe.sub.z where MM signifies mischmetal, y is a number between 4.5 and 5.5, x is a number between 0.1 and 1.5, z is a number between 0 and 0.3 and "x+z" has a maximum of 1.5.
Claim 3
Dependent Claim
20 words
An alloy as in claim 1 wherein y equals about 5, x equals about 0.5 and z is substantially 0.
Claim 4
Dependent Claim
10 words
An alloy as in claim 1 in the annealed condition.
Claim 5
Dependent Claim
10 words
An alloy as in claim 2 in the annealed condition.
Claim 6
Dependent Claim
24 words
An alloy as in claim 1 wherein y is about 5, x is a number between 0.3 and 0.8 and z is substantially 0.
Claim 7
Dependent Claim
57 words
A hydrogen storage system containing as a hydride storage medium a mischmetal-nickel-aluminum alloy responding substantially to the formula MM Ni.sub.(y-[x+z]) Al.sub.x Fe.sub.z where MM signifies mischmetal, y is a number between 4.5 and 5.5, x is a number between 0.1 and 1.5, z is a number between 0 and 0.3 and "x+z" is a maximum of 1.5.
Claim 8
Dependent Claim
57 words
A hydrogen storage system containing as a hydride storage medium a mischmetal-nickel-aluminum alloy responding substantially to the formula MM Ni.sub.(y-[x+z]) Al.sub.x Fe.sub.z where MM signifies mischmetal, y is a number between 4.5 and 5.5, x is a number between 0.1 and 1.5, z is a number between 0 and 0.3 and "x+z" is a maximum of 1.5.
References Cited (Backward Citations)
US3825418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |