Flame retardant EMI shielding gasket
AssigneeParker-Hannifin Corporation
InventorsMichael H. Bunyan, William I. Flanders
Life of this patent
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Abstract
A flame retardant, electromagnetic interference (EMI) shielding gasket construction. The construction includes a resilient core member formed of a foamed elastomeric material, an electrically-conductive fabric member surrounding the outer surface of the core member, and a flame retardant layer coating at least a portion of the interior surface of the fabric member. The flame retardant layer is effective to afford the gasket construction with a flame class rating of V-0 under Underwriter's Laboratories (UL) Standard No. 94.
Claims8
A flame retardant, electromagnetic interference (EMI) shielding gasket comprising:
- a resilient core member extending lengthwise along a central longitudinal axis and having an outer surface extending circumferentially about said longitudinal axis, said core member being formed of a foamed elastomeric material;
- an electrically-conductive fabric member surrounding the outer surface of said core member, said fabric member having an interior surface disposed facing the outer surface of said core member and an oppositely-facing exterior surface at least the exterior surface being electrically-conductive and the exterior surface defining with the interior surface a thickness dimension of the fabric member therebetween;
- and
- a flame retardant layer coating at least a portion of the interior surface of said fabric member, said flame retardant layer penetrating into said fabric member to a depth which is less than the thickness dimension of said fabric member such that the exterior surface of said fabric member remains electrically-conductive.
Dependencies are inferred from the claim text.