US5115104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
EMI/RFI shielding gasket
Assignee: Parker Intangibles LLC
•
Filing: 1991-03-29
•
Granted: 1992-05-19
•
Expires: 2011-03-29
Abstract
Abstract A shielding gasket is provided, comprising a conductive or non-conductive resilient core, the surface of which is rendered electrically conductive by flocking with conductive fibers. The gasket is inexpensive, lightweight and allows a low closure force. The invention further provides a method of rendering selected areas of the surface of a core conductive by selectively flocking with conductive fibers.
Inventors
- 👤 Michael A. Bunyan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:20
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; Y; Y10; Y10S; Y10S277/00; Y10S277/919
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
35 words
A shielding gasket comprising a resilient core, having an outer surface at least a portion of which surface has a coating of a flocking adhesive, said coating having a layer of conductive fibers bonded therearound.
Claim 2
Dependent Claim
35 words
A shielding gasket comprising a resilient core, having an outer surface at least a portion of which surface has a coating of a flocking adhesive, said coating having a layer of conductive fibers bonded therearound.
Claim 3
Dependent Claim
12 words
A gasket of claim 1 wherein the resilient core is an elastomer.
Claim 4
Dependent Claim
23 words
A gasket of claim 2 wherein the resilient core is selected from the group consisting of elastomeric thermoplastics, natural rubbers, synthetic rubbers, urethanes.
Claim 5
Dependent Claim
11 words
A gasket of claim 1 wherein the resilient core is non-conductive.
Claim 6
Dependent Claim
11 words
A gasket of claim 1 wherein the resilient core is foamed.
Claim 7
Dependent Claim
12 words
A gasket of claim 1 wherein the resilient core is electrically conductive.
Claim 8
Dependent Claim
20 words
A gasket of claim 1 wherein the resilient core comprises an elastomer and a conductive filler incorporated into the elastomer.
Claim 9
Dependent Claim
16 words
A gasket of claim 1 wherein the conductive fibers are metal plated or coated natural fibers.
Claim 10
Dependent Claim
12 words
A gasket of claim 1 wherein the conductive fibers are metal fibers.
Claim 11
Dependent Claim
28 words
A gasket of claim 1 wherein the conductive fibers are selected from the group consisting of metal plated or coated synthetic, glass, ceramic, and graphite or metal fibers.
Claim 12
Dependent Claim
11 words
A gasket of claim 1 wherein the conductive fibers are magnetic.
Claim 13
Dependent Claim
12 words
A gasket of claim 1 wherein the conductive fibers are microwave absorbing.
Claim 14
Dependent Claim
19 words
A gasket of claim 10 wherein the conductive fibers comprise a mixture of two or more types of fibers.
Claim 15
Dependent Claim
13 words
A gasket of claim 1 wherein the fibers are metal plated nylon fibers.
Claim 16
Dependent Claim
18 words
A gasket of claim 1 wherein the fibers have a length of from about 10 to 100 mils.
Claim 17
Dependent Claim
16 words
A gasket of claim 1 wherein the fibers have a length of from about 20-40 mils.
Claim 18
Dependent Claim
18 words
A gasket of claim 1 wherein the fibers have a diameter of from about 5 to 50 microns.
Claim 19
Dependent Claim
18 words
A gasket of claim 1 wherein the fibers have a diameter of from about 10 to 20 microns.
Claim 20
Dependent Claim
29 words
A gasket of claim 1 wherein the flocking adhesive is selected from the group consisting of thermoset or thermoplastic urethanes, acrylics, silicones, ethylene vinyl acetate (EVA), and polyester adhesives.
Claim 21
Dependent Claim
11 words
A gasket of claim 1 wherein the entire surface is flocked.
Claim 22
Dependent Claim
14 words
A gasket of claim 1 wherein selected portions of the gasket surface are unflocked.
Claim 23
Dependent Claim
10 words
A gasket of claim 1 further comprising an attachment means.
Claim 24
Dependent Claim
24 words
A gasket of claim 22 wherein said attachment means comprises an area of pressure sensitive adhesive disposed on the outer surface of the gasket.
Claim 25
Dependent Claim
20 words
A gasket of claim 23 wherein the pressure sensitive adhesive is disposed on an unflocked area of the gasket surface.
Claim 26
Dependent Claim
13 words
A gasket of claim 22 wherein said attachment means comprises a metal clip.
Claim 27
Dependent Claim
17 words
A gasket of claim 25 wherein said clip is integral with the outer surface of said gasket.
References Cited (Backward Citations)
US3973059A
Cited
US4246294A
Cited
US4311113A
Cited
US4243460A
Cited
US4664971A
Cited
US4505224A
Cited
US4622192A
Cited
US4647714A
Cited
US4684762A
Cited
US4857377A
Cited
US4810549A
Cited
US4963422A
Cited
US4968854A
Cited
US4977295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |