Patent ID: 8671470
Filing Date: 2014-03-18
Classification: E03D

Abstract:
1. A toilet gasket providing a liquid and gas seal between a lower surface of a toilet base and an upper surface of a toilet flange provided on a drain conduit to which the toilet base is mountable and through which liquid and gas waste flows, the toilet gasket comprising: a repositionable, ring-shaped body having a planar lower surface for contacting the upper surface of the toilet flange and an uninterrupted arcuate upper surface for contacting the lower surface of the toilet base, the repositionable, ring-shaped body of a flexible open-cell foam with a high yield for compression of a distance between the lower surface of the toilet base and the upper surface of the toilet flange and deflection of the distance between the lower surface of the toilet base and the upper surface of the toilet flange to maintain a seal against liquid and gas egress between the lower surface of the toilet base and the upper surface of the toilet flange while resiliently attempting to return to its original shape to accept movement between the body, the toilet base and the toilet flange, the open-cell foam body comprising a combination of polyether polyols, isocyanates, surfactants, chain extenders, catalysts and any single one of a combination of physical and/or chemical blowing agents and wherein BHT is present in the polyether polyol providing an anti-microbial construction; and a layer on an entire outer surface of the repositionable, ring-shaped body having a molded density between 0.04 and 0.40 gm/cc that is impermeable to liquid and gas waste and able to accept sealants bonded to the surface of all elements without compromising sealing.