Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1994-09-14
1996-06-11
Cummings, Scott W.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277234, 277901, 174 35GC, F16J 1512
Patent
active
055249086
ABSTRACT:
An multi-layered EMI gasket has a first layer constructed of an electrically conductive resilient material and a second, support layer of an electrically conductive material secured in facing engagement with the first layer. The material of the second layer is more rigid than the material of the first layer, so that the second layer imparts rigidity to the gasket. Preferably, the resilient material is carbon particle filled EPTFE and the support layer is a metal foil. The combination of these elements is very effective at conducting electrical signals, thereby providing exceptional EMI/RFI shielding of electronic components, while being far easier to handle and install than prior art gaskets. Further, the resilient material of the first layer permits the gasket to conform to irregular surfaces, thus providing an excellent environmental seal.
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Cummings Scott W.
Johns David J.
W. L. Gore & Associates
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