Patent US5070216A successfully refreshed from Google Patents.
US5070216A
Expired / Lapsed
US
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Emi shielding gasket
Assignee: Parker Intangibles LLC
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Filing: 1990-04-27
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Granted: 1991-12-03
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Expires: 2010-04-27
Abstract
Abstract An electrically conductive gasket comprised of a plastic substrate and a metal layer formed on at least one surface of the gasket. The gasket is preferably formed in a form such that it has an attachment portion and a contact portion. Preferably, the gasket is an EMI/RFI shielding gasket having a plurality of fingers extending outwardly from a center portion such that the metal layer of the gasket establishes an electrical connection between two substrates which require EMI/RFI shielding.
Inventors
- 👤 Steven L. Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:32
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
90 words
An EMI/RFI shielding gasket comprising an elongated strip of thermoplastic wherein the thermoplastic is a blend of ethylene vinyl acetate copolymer and polypropylene, the strip having two arms, each of the arms having an outer and inner surface, the outer surface of each of the arms having a layer of conductive metal bonded to it and wherein the metal is selected from the group consisting of gold, silver, platinum, palladium, copper, aluminum, zinc, tin, nickel, iron cobalt, mercury, chromium, tinned aluminum, tinned copper, silver plated copper and silver plated aluminum.
Claim 2
Dependent Claim
90 words
An EMI/RFI shielding gasket comprising an elongated strip of thermoplastic wherein the thermoplastic is a blend of ethylene vinyl acetate copolymer and polypropylene, the strip having two arms, each of the arms having an outer and inner surface, the outer surface of each of the arms having a layer of conductive metal bonded to it and wherein the metal is selected from the group consisting of gold, silver, platinum, palladium, copper, aluminum, zinc, tin, nickel, iron cobalt, mercury, chromium, tinned aluminum, tinned copper, silver plated copper and silver plated aluminum.
Claim 3
Dependent Claim
24 words
The EMI/RFI shielding gasket of claim 1 wherein one of the arms forms a bearing portion and the other arm forms an attachment portion.
Claim 4
Dependent Claim
16 words
The EMI/RFI shielding gasket of claim 2 wherein the bearing portion has a plurality of fingers.
Claim 5
Dependent Claim
16 words
The EMI/RFI shielding gasket of claim 1 wherein the two arms have a plurality of fingers.
Claim 6
Dependent Claim
35 words
The EMI/RFI shielding gasket of claim 1 wherein the metal layer is in a form selected from the group consisting of metal foils, metallic plated layers, sprayed metallically filled layers and vapor deposited metallic layers.
Claim 7
Dependent Claim
15 words
The EMI/RFI shielding gasket of claim 1 wherein the two arms form a V-shaped structure.
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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) | 1994-12-02 | 1995-06-03 | 1995-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-02 | 1999-06-03 | 1999-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-02 | 2003-06-03 | 2003-12-03 | $7700.00 | Window Closed / Lapsed |