MULTIPLE COMPONENT GASKET
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United States of America Patent
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N/A
Issued Date -
Apr 1, 2010
app pub date -
Jul 23, 2009
filing date -
Jul 24, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A multiple component gasket includes at least one mounting body that is fused to at least one sealing body. The sealing body is softer than mounting body. The sealing body may be an EPDM with the mounting body being a polypropylene. The multiple component gasket is made by preheating the sealing body with an infrared heat lamp and then passing the sealing body over heated pressure roller. The mounting body portion is disposed against an opposing chill roller in a manner such that the two portions directly engage each other. Hot air is forced against the location where the two portions engage each other just before the two portions pass between the two rollers. The combination of the heat and the pressure fuses the sealing body to the mounting body. The resulting gasket fails at the tear strength of the sealing body.
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