US5028739A — EMI/REI shielding gasket

Claim 1

Independent Claim 60 words

A shielding gasket comprising: a) an elastomer core; b) a wire mesh knitted or braided over said core; and c) a strip of pressure sensitive adhesive disposed on the surface of the gasket parallel to its length, in a manner such that the pressure sensitive adhesive bonds to the core through the mesh thereby securing the mesh to the core.

Claim 2

Dependent Claim 60 words

A shielding gasket comprising: a) an elastomer core; b) a wire mesh knitted or braided over said core; and c) a strip of pressure sensitive adhesive disposed on the surface of the gasket parallel to its length, in a manner such that the pressure sensitive adhesive bonds to the core through the mesh thereby securing the mesh to the core.

Claim 3

Dependent Claim 17 words

The shielding gasket of claim 1 further comprising a releasable protective covering means adjacent said adhesive strip.

Claim 4

Dependent Claim 22 words

The shielding gasket of claim 1, wherein said mesh is formed from wire having a diameter of less than about 0.0050 inches.

Claim 5

Dependent Claim 21 words

The shielding gasket of claim 1, wherein said mesh is a knit fabric having less than about 35 openings per inch.

Claim 6

Dependent Claim 35 words

The shielding gasket of claim 1, wherein said core is of a material selected from the group consisting of: elastomeric thermoplastics, neoprene rubber, silicone, urethane, foamed elastomeric thermoplastics, neoprene rubber, foamed silicone and foamed urethane.

Claim 7

Dependent Claim 16 words

The shielding gasket of claim 1, wherein said core is formed of a solid silicone elastomer.

Claim 8

Dependent Claim 13 words

The shielding gasket of claim 1, wherein said adhesive strip is electrically conductive.

Claim 9

Dependent Claim 23 words

The shielding gasket of claim 1 wherein the elastomer core is a foamed urethane elastomer and the wire mesh is silver plated nylon.

Claim 10

Independent Claim 94 words

A method of shielding an enclosure comprising the steps of: a) forming a shielding gasket by a process comprising the sequential steps of: i. providing an elastomer core; ii. knitting or braiding a wire mesh over and surrounding said core; and iii. applying strip of pressure sensitive adhesive to said gasket, parallel to its length, in a manner such that the pressure sensitive adhesive bonds to the core through the mesh, thereby securing the mesh to the core; and b) adhering said gasket to the surface of said enclosure via the pressure sensitive adhesive.

Claim 11

Independent Claim 94 words

A method of shielding an enclosure comprising the steps of: a) forming a shielding gasket by a process comprising the sequential steps of: i. providing an elastomer core; ii. knitting or braiding a wire mesh over and surrounding said core; and iii. applying strip of pressure sensitive adhesive to said gasket, parallel to its length, in a manner such that the pressure sensitive adhesive bonds to the core through the mesh, thereby securing the mesh to the core; and b) adhering said gasket to the surface of said enclosure via the pressure sensitive adhesive.

Claim 12

Dependent Claim 11 words

The method of claim 9 wherein said adhesive is electrically conductive.

Claim 13

Dependent Claim 22 words

The method of claim 9 wherein the elastomer core is a formed urethane elastomer and the wire mesh is silver plated nylon.

Claim 14

Dependent Claim 64 words

An EMI/RFI shielding gasket comprising: a) a resilient elastomeric core; b) a conductive metal mesh surrounding the core; c) a metal foil strip the length of which is greater than its width, said strip having a pressure sensitive adhesive on its surfaces, and one surface of the metal foil strip being in contact with and bonded to the core by the pressure sensitive adhesive.

Claim 15

Dependent Claim 64 words

An EMI/RFI shielding gasket comprising: a) a resilient elastomeric core; b) a conductive metal mesh surrounding the core; c) a metal foil strip the length of which is greater than its width, said strip having a pressure sensitive adhesive on its surfaces, and one surface of the metal foil strip being in contact with and bonded to the core by the pressure sensitive adhesive.

Claim 16

Dependent Claim 76 words

The EMI/RFI shielding gasket of claim 12 wherein the core is seleted from the group consisting of: elastomeric thermoplastics, neoprene rubber, silicone, urethane, foamed elastomeric thermoplastics, foamed neoprene rubber, foamed silicone and foamed urethane; the mesh is a woven or briaded material having less than 35 openings per square inch; and the metal foil strip is selected from the group consisting of tinned copper, copper, stainless steel, noble metal plated non and noble metals, noble metals.

Claim 17

Dependent Claim 15 words

The EMI/RFI shielding gasket of claim 12 wherein the pressure sensitive adhesive is electrically conductive.

Claim 18

Independent Claim 121 words

A method of shielding an enclosure comprising the steps of: a) forming a shielding gasket by a process comprising the sequential steps of: i. providing a resilient elastomer core; ii. knitting or braiding a conductive metal mesh over and surrounding the core; and iii. applying to said gasket a metal foil strip the length of which is greater than its width, said foil strip having a pressure sensitive adhesive on at least two of its surfaces, such that one surface of the foil strip is bonded through the mesh to the core by the pressure sensitive adhesive; and b) adhering said gasket to the surface of said enclosure via the pressure sensitive adhesive on the other surface of the foil strip.

Claim 19

Independent Claim 121 words

A method of shielding an enclosure comprising the steps of: a) forming a shielding gasket by a process comprising the sequential steps of: i. providing a resilient elastomer core; ii. knitting or braiding a conductive metal mesh over and surrounding the core; and iii. applying to said gasket a metal foil strip the length of which is greater than its width, said foil strip having a pressure sensitive adhesive on at least two of its surfaces, such that one surface of the foil strip is bonded through the mesh to the core by the pressure sensitive adhesive; and b) adhering said gasket to the surface of said enclosure via the pressure sensitive adhesive on the other surface of the foil strip.

Claim 20

Dependent Claim 63 words

The method of claim 15 wherein the core is selected from the group consisting of urethane, elastomeric thermoplastics, neoprene rubber, silicone, and foams thereof; the mesh is a woven or braided material having less than 35 openings per square inch; and the metal foil strip is selected from the group consisting of tinned copper, copper, stainless steel, and noble metal plated non-noble metals.

Claim 21

Dependent Claim 13 words

The method of claim 15 wherein the pressure sensitive adhesive is electrically conductive.

Claim 22

Dependent Claim 78 words

A shielding gasket comprising: a) an elastomeric core; b) a wire mesh knitted or braided over and surrounding said core; and c) a strip of pressure sensitive adhesive disposed on a surface of the gasket, parallel to its length, such that the adhesive bonds the mesh to the core; wherein the wire mesh is a knit fabric having less than about 35 openings per inch and is formed from wire having a thickness of less than 0.005 inches.

Claim 23

Dependent Claim 78 words

A shielding gasket comprising: a) an elastomeric core; b) a wire mesh knitted or braided over and surrounding said core; and c) a strip of pressure sensitive adhesive disposed on a surface of the gasket, parallel to its length, such that the adhesive bonds the mesh to the core; wherein the wire mesh is a knit fabric having less than about 35 openings per inch and is formed from wire having a thickness of less than 0.005 inches.

Claim 24

Dependent Claim 23 words

The shielding gasket of claim 18 wherein the elastomeric core is a foamed urethane elastomer and the wire mesh is silver plated nylon.

Claim 25

Dependent Claim 67 words

A shielding gasket produced by a process comprising the sequential steps of: a) providing an elastomeric core; b) knitting or braiding a wire mesh over and surrounding said core; and c) applying a strip of pressure sensitive adhesive to said gasket, parallel to its length, in a manner such that the pressure sensitive adhesive bonds to the core through the mesh, securing the mesh to the core.

Claim 26

Dependent Claim 67 words

A shielding gasket produced by a process comprising the sequential steps of: a) providing an elastomeric core; b) knitting or braiding a wire mesh over and surrounding said core; and c) applying a strip of pressure sensitive adhesive to said gasket, parallel to its length, in a manner such that the pressure sensitive adhesive bonds to the core through the mesh, securing the mesh to the core.

Claim 27

Dependent Claim 21 words

A gasket of claim 20 wherein said mesh is formed from wire having a diameter of less than about 0.0050 inches.

Claim 28

Dependent Claim 21 words

A gasket of claim 20 wherein said mesh is a knit fabric having less than about 35 openings per square inch.

Claim 29

Dependent Claim 22 words

The gasket of claim 20 wherein the elastomeric core is a foamed urethane elastomer and the wire mesh is silver plated nylon.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1994-07-01	1994-12-31	1995-07-02	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1998-07-01	1998-12-31	1999-07-02	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2002-07-01	2002-12-31	2003-07-02	$7700.00	Window Closed / Lapsed

EMI/REI shielding gasket

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