Patent ID: 6332632
Filing Date: 2001-12-25
Classification: E03D,F16L

Abstract:
A closet flange for insertion into a drain pipe, comprising:a shoulder portion having a plurality of openings for accommodating means for securing the flange to a floor;a body portion extending from the shoulder portion in a downstream direction and defining an axis, said body portion having an upstream portion adjacent the shoulder portion and a downstream portion, said upstream portion being substantially cylindrical and having a constant outer diameter in the axial direction, said downstream portion being tapered such that its outside diameter increases in the upstream direction; anda toroidal o-ring disposed about the body downstream portion to provide a compression fit between the flange and the drain pipe, the o-ring being of sufficient elasticity to travel in an upstream direction along the downstream portion as the flange is inserted into the pipe to provide an increasingly tighter fit.