Patent US4977035A successfully refreshed from Google Patents.
US4977035A
Expired / Lapsed
US
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Getter strip
Assignee: SAES Getters SpA
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Filing: 1989-03-03
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Granted: 1990-12-11
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Expires: 2009-03-03
Abstract
Abstract A strip getter structure comprising getter powder pressed into and onto an open reticulated network carrier strip. The getter powder particles form an agglomeration with strength derived both from interlocking of said getter particles and from support of the getter agglomeration by the network. The getter strip structure is manufactured by continuous rolling of getter powder into and onto the network carrier strip by means of a gravity powder feed and a cylindrical rolling mill.
Inventors
- 👤 Jonathan A. Travis
- 👤 Winfred L. Woodard, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:17
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/02; B22F3/18; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12042; Y10T428/12063; Y10T428/1209; Y10T428/12104; Y10T428/12111; Y10T428/12125; Y10T428/12132; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249956; Y10T428/249957
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A composite strip getter structure comprising getter powder pressed into and onto an open reticulated network carrier strip such that the getter powder particles form an agglomeration with strength deriving both from interlocking of said getter particles and from support of the getter agglomeration by the network; the getter powder selected from a group consisting of one or more of Ti, Zr, Cr, V, Nb, Ta, Ba, Th, Ca, Al, Ni, Mn, Fe and one or more rare earth elements; the getter powder composition being a physical mixture of metals in alloyed form and in intermetallic compound form.
Claim 2
Dependent Claim
98 words
A composite strip getter structure comprising getter powder pressed into and onto an open reticulated network carrier strip such that the getter powder particles form an agglomeration with strength deriving both from interlocking of said getter particles and from support of the getter agglomeration by the network; the getter powder selected from a group consisting of one or more of Ti, Zr, Cr, V, Nb, Ta, Ba, Th, Ca, Al, Ni, Mn, Fe and one or more rare earth elements; the getter powder composition being a physical mixture of metals in alloyed form and in intermetallic compound form.
Claim 3
Dependent Claim
102 words
A composite strip getter structure comprising getter powder pressed into and onto an open reticulated network carrier strip such that the getter powder particles form an agglomeration with strength deriving both from interlocking of said getter particles and from support of the getter agglomeration by the network; the getter powder selected from a group consisting of one or more of Ti, Zr, Cr, V, Nb, Ta, Ba, Th, Ca, Al, Ni, Mn, Fe and one or more rare earth elements; the getter powder composition being a physical mixture of metals in elemental form and in alloyed form and in intermetallic compound form.
Claim 4
Dependent Claim
102 words
A composite strip getter structure comprising getter powder pressed into and onto an open reticulated network carrier strip such that the getter powder particles form an agglomeration with strength deriving both from interlocking of said getter particles and from support of the getter agglomeration by the network; the getter powder selected from a group consisting of one or more of Ti, Zr, Cr, V, Nb, Ta, Ba, Th, Ca, Al, Ni, Mn, Fe and one or more rare earth elements; the getter powder composition being a physical mixture of metals in elemental form and in alloyed form and in intermetallic compound form.
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) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |