Single-sided sticky gasket
First Claim
Patent Images
1. A gasket comprising:
- a cured, sticky, elastomeric polyurethane body having a metallic skeleton, the body having an upper surface and a lower surface; and
an electrically conductive skin on one of the upper surface or the lower surface, the electrically conductive skin forming a first gasket surface, the other of the upper surface or lower surface forming a second gasket surface;
wherein the gasket, under compression, allows some seepage of the polyurethane of the polyurethane body through the electrically conductive skin, and wherein the electrically conductive skin has polyurethane dispersed therein.
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Abstract
Applicants disclose a gasket for use between a removable workpiece and a base. The gasket has a polyurethane body, is generally tabular, and on one side has a fabric skin attached thereto. On the non-skinned side, the body, typically polyurethane, is sticky to the touch.
62 Citations
15 Claims
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1. A gasket comprising:
- a cured, sticky, elastomeric polyurethane body having a metallic skeleton, the body having an upper surface and a lower surface; and
an electrically conductive skin on one of the upper surface or the lower surface, the electrically conductive skin forming a first gasket surface, the other of the upper surface or lower surface forming a second gasket surface;
wherein the gasket, under compression, allows some seepage of the polyurethane of the polyurethane body through the electrically conductive skin, and wherein the electrically conductive skin has polyurethane dispersed therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15)
- a cured, sticky, elastomeric polyurethane body having a metallic skeleton, the body having an upper surface and a lower surface; and
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11. A gasket comprising:
- a cured, sticky, elastomeric polyurethane body having a metallic skeleton, the body having an upper surface and a lower surface; and
an electrically conductive skin on one of the upper surface or the lower surface, the electrically conductive skin forming a first gasket surface, the other of the upper surface or lower surface forming a second gasket surface;
wherein the gasket, under compression, allows some seepage of the polyurethane of the polyurethane body through the electrically conductive skin;
wherein the electrically conductive skin has polyurethane dispersed therein;
wherein the electrically conductive skin is in contact with the metallic skeleton of the polyurethane body;
wherein the polyurethane body has a hardness in the range of about 75 to 150 (measured with a 37.5 gram half cone penetrometer);
wherein the resistance of the electrically conductive skin is about 0.002 ohms per unit square; and
wherein the polyurethane body is between about 20 and 60 mil thick and the electrically conductive skin is between about 3 and 10 mil thick. - View Dependent Claims (13)
- a cured, sticky, elastomeric polyurethane body having a metallic skeleton, the body having an upper surface and a lower surface; and
Specification