Patent US4037009A successfully refreshed from Google Patents.
US4037009A
Expired / Lapsed
US
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Conductive elastomeric elements
Assignee: Metex Corp USA
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Filing: 1976-08-11
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Granted: 1977-07-19
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Expires: 1996-08-11
Abstract
Abstract An electromagnetic shielding element comprising a moldable elastomer containing a particulate conductive filler and at least one layer of knitted wire mesh in said elastomer. The filler is preferably a precious metal, especially silver, and its preferred form is as a coating on copper or glass. The element may be composed of a plurality of layers of knitted mesh embedded in the elastomer and the directions of extension of the loops in the layers are at angles to one another. The element is useful as a combination gasket and electromagnetic shield.
Inventors
- 👤 John Severinsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:43
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B25/00; B32B25/10; B32B27/18; B32B27/20; B32B27/40; B32B5/00; B32B5/02; B32B5/028; H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; H01B5/00; H01B5/12; H05; H05K; H05K9/00; H05K9/0073; H05K9/0081; H05K9/009; B32B2305/00; B32B2305/38; B32B2581/00; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/252; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31598; Y10T428/31601; Y10T428/31605; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/11; Y10T442/112; Y10T442/129
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
24 words
An electromagnetic shielding element comprising an elastomer containing a particulate conductive filler and at least one layer of knitted wire mesh in said elastomer.
Claim 2
Dependent Claim
24 words
An electromagnetic shielding element comprising an elastomer containing a particulate conductive filler and at least one layer of knitted wire mesh in said elastomer.
Claim 3
Dependent Claim
12 words
An element according to claim 1 wherein said elastomer is silicone polyurethane.
Claim 4
Dependent Claim
12 words
An element according to claim 1 wherein said filler is precious metal.
Claim 5
Dependent Claim
15 words
An element according to claim 3 wherein said precious metal is coated on a substrate.
Claim 6
Dependent Claim
13 words
An element according to claim 4 wherein said substrate is of base metal.
Claim 7
Dependent Claim
11 words
An element according to claim 5 wherein said substrate is copper.
Claim 8
Dependent Claim
11 words
An element according to claim 4 wherein said substrate is non-conductive.
Claim 9
Dependent Claim
11 words
An element according to claim 7 wherein said substrate is glass.
Claim 10
Dependent Claim
14 words
An element according to claim 3 wherein said filler is silver plated glass spheres.
Claim 11
Dependent Claim
17 words
An element according to claim 1 wherein there is provided a plurality of layers of said mesh.
Claim 12
Dependent Claim
46 words
An element according to claim 10 wherein each of said layers has loops extending in one direction in the plane of said mesh, at least one of said layers having said direction at an angle to said direction of at least one other of said layers.
Claim 13
Dependent Claim
21 words
An element according to claim 11 wherein adjacent layers of said mesh have their directions at an angle to one another.
Claim 14
Dependent Claim
21 words
An element according to claim 10 wherein at least two of said layers are separated by further layers of said elastomer.
Claim 15
Dependent Claim
20 words
An element according to claim 1 wherein said mesh is of copper clad steel wire which has been tin plated.
Claim 16
Dependent Claim
26 words
An element according to claim 1 wherein each of the loops of said knitted mesh are formed of from 1 to 6 strands of said wire.
Claim 17
Dependent Claim
17 words
An element according to claim 1 wherein said wire has a diameter of 0.001 to 0.008 inches.
Claim 18
Dependent Claim
18 words
An element according to claim 1 wherein said knitted mesh has from 10 to 30 openings per inch.
Claim 19
Dependent Claim
15 words
An element according to claim 10 wherein there are 1 to 4 of said layers.
Claim 20
Dependent Claim
14 words
An element according to claim 11 wherein said angle is between 0° and 180°.
Claim 21
Dependent Claim
16 words
An element according to claim 1 wherein said mesh is of a nickel-copper corrosion resistant alloy.
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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) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |