US4968550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire braid reinforced indium
Assignee: Indium Corp of America Inc
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Filing: 1989-04-20
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Granted: 1990-11-06
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Expires: 2009-04-20
Abstract
Abstract An indium-metal braid-indium sandwich is formed by applying indium ribbons to upper and lower surfaces of a metal braid and then working the sandwich, e.g., between rollers. The resulting product has enhanced tensile strength and stiffness, yet retains the attributes of indium for application as a gasket, gland, or seal.
Inventors
- 👤 Paul A. Socha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:25
CPC Classifications
B; B32; B32B; B32B38/00; B32B38/08; B21; B21B; B21B1/00; B21B1/38; B32B15/00; B32B15/01; B21B2001/383; B21B3/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12444; Y10T428/12486; Y10T428/12493; Y10T428/12681; Y10T428/23; Y10T428/237; Y10T428/238; Y10T428/239; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24777; Y10T428/31504; Y10T428/31678; Y10T428/31681; Y10T428/31692
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
74 words
A flexible sheet material comprising a flat braid layer formed of a plurality of filaments of metal, glass, or polymeric fibers, and at least one layer of indium impressed into said braid layer, with the indium impregnating the filaments and self-welding over them, the sheet material having the property that when it is cut to define a cut edge, the indium metal self welds around cut ends of the filaments at the cut edge.
Claim 2
Dependent Claim
74 words
A flexible sheet material comprising a flat braid layer formed of a plurality of filaments of metal, glass, or polymeric fibers, and at least one layer of indium impressed into said braid layer, with the indium impregnating the filaments and self-welding over them, the sheet material having the property that when it is cut to define a cut edge, the indium metal self welds around cut ends of the filaments at the cut edge.
Claim 3
Dependent Claim
22 words
The flexible sheet material of claim 1 wherein there are first and second indium layers, with said braid layer being sandwiched therebetween.
Claim 4
Dependent Claim
16 words
The flexible sheet material of claim 1 wherein said flat braid layer is a metal braid.
Claim 5
Dependent Claim
79 words
A flexible metal sheet material comprising a flat metal braid layer formed of a plurality of metal filaments, and first and second layers of indium impressed directly against said braid layer with the braid sandwiched therebetween, such that the indium impregnates the metal filaments and self-welds over them, the sheet material having the property that when it is cut to define a cut edge, the indium metal self-welds around the cut ends of the filaments at the cut edge.
Claim 6
Dependent Claim
79 words
A flexible metal sheet material comprising a flat metal braid layer formed of a plurality of metal filaments, and first and second layers of indium impressed directly against said braid layer with the braid sandwiched therebetween, such that the indium impregnates the metal filaments and self-welds over them, the sheet material having the property that when it is cut to define a cut edge, the indium metal self-welds around the cut ends of the filaments at the cut edge.
Claim 7
Dependent Claim
78 words
An electrically conducted sheet material formed as a ribbon of metal braid sandwiched between a pair of indium ribbon layers, with the indium penetrating interstices in said metal braid to unite the indium of one of the ribbons with the indium of the other of the ribbons, the sheet material having he property that when it is cut to define a cut edge, the indium metal self-welds around the cut ends of the filaments at the cut edge.
Claim 8
Dependent Claim
78 words
An electrically conducted sheet material formed as a ribbon of metal braid sandwiched between a pair of indium ribbon layers, with the indium penetrating interstices in said metal braid to unite the indium of one of the ribbons with the indium of the other of the ribbons, the sheet material having he property that when it is cut to define a cut edge, the indium metal self-welds around the cut ends of the filaments at the cut edge.
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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) | 1993-11-05 | 1994-05-07 | 1994-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-05 | 1998-05-07 | 1998-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-05 | 2002-05-07 | 2002-11-06 | $7700.00 | Window Closed / Lapsed |