US4222770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy for occlusion of hydrogen
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1979-03-09
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Granted: 1980-09-16
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Expires: 1999-03-09
Abstract
Abstract An alloy of the general formula, MmNi5-xAx (wherein, Mm stands for misch metal, A for one member selected from the group consisting of B, Ca, Cr, Cu, Fe, V, Zn and Si, and x for a numerical value in the range of from 0.01 to 2), which is useful for the occlusion of hydrogen.
Inventors
- 👤 Yasuaki Osumi
- 👤 Hiroshi Suzuki
- 👤 Akihiko Kato
- 👤 Masanori Nakane
- 👤 Yoshizo Miyake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:19
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: 6
Claim 1
Independent Claim
102 words
An alloy for the occlusion of hydrogen and having the generic formula MmNi 5-x A x , wherein Mm is a mischmetal comprising 25 to 30% by weight of La, 40 to 45% by weight of Ce, 10 to 15% by weight of Pr, 4 to 5% by weight of Nd, and 4 to 7% by weight of Sm+Gd as essential elements and accompanying elements entrained by said essential elements, A is a member selected from the group consisting of B, Ca, Cr, Cu, Fe, V, Zn and Si, and x is a numerical value in the range of 0.01 to 2.
Claim 2
Dependent Claim
102 words
An alloy for the occlusion of hydrogen and having the generic formula MmNi 5-x A x , wherein Mm is a mischmetal comprising 25 to 30% by weight of La, 40 to 45% by weight of Ce, 10 to 15% by weight of Pr, 4 to 5% by weight of Nd, and 4 to 7% by weight of Sm+Gd as essential elements and accompanying elements entrained by said essential elements, A is a member selected from the group consisting of B, Ca, Cr, Cu, Fe, V, Zn and Si, and x is a numerical value in the range of 0.01 to 2.
Claim 3
Dependent Claim
50 words
The alloy according to claim 1, wherein the accompanying elements are at least one member selected from the group consisting of 0.1 to 5% by weight of Fe, 0.1 to 1% by weight of Si, 0.1 to 2% by weight of Mg and 0.1 to 1% by weight of Al.
Claim 4
Dependent Claim
39 words
The alloy according to claim 1, wherein A represents one member selected from the group consisting of B, Ca, Cr, Cu, Fe, V and Zn and x represents a numerical value in the range of from 0.1 to 1.
Claim 5
Dependent Claim
35 words
The alloy according to claim 2, wherein A represents one member selected from the group consisting of Cr, Fe and Zn and x represents a numerical value in the range of from 0.1 to 1.
Claim 6
Dependent Claim
24 words
The alloy according to claim 1, wherein A represents Si and x represents a numerical value in the range of from 0.1 to 1.5.
References Cited (Backward Citations)
US4096639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |