Patent ID: 7905498
Filing Date: 2011-03-15
Classification: F16J

Abstract:
1. A gasket having an upper face and a lower face, the gasket comprising: a base sheet, the base sheet having an upper surface and a lower surface and comprising a pervious material having interstitial spaces therein, the base sheet comprising a mesh material having parallel first elements and transversely extending second elements intersecting the first elements, the interstitial spaces being respectively between the intersecting first and second elements; and a permeating material at least partially covering the upper and lower surfaces of the base sheet and at least partially filling the interstitial spaces, the permeating material comprising a polymer material and having an upper patterned surface on the upper face of the gasket and a lower patterned surface on the lower face of the gasket, the upper and lower patterned surfaces each comprising intersecting projections and recesses respectively between the intersecting projections, wherein the upper surface and lower surface are partially free from coverage with the permeating material at locations corresponding to the upper and lower recesses.