Patent ID: 6418570
Filing Date: 2002-07-16
Classification: A47K,E03C

Abstract:
A drain closure device comprising:a strainer body having a threaded vertical bore therethrough; an elongated cylindrical post comprised of resilient material threadingly mounted in the vertical bore of the strainer body, the post having a vertically elongated slot extending laterally therethrough along a central longitudinal axis of the post; a pair of opposing resilient annular ridges rigidly secured on a diameter or circumferential surface of the post laterally adjacent to the slot so as to protrude radially outward from the diameter of the post to define an effective diameter; and a stopper having a cylindrical vertical bore for slidably receiving the post, the bore having a diameter slightly larger than the diameter of the post and slightly smaller than the effective diameter at the ridges so that the ridges frictionally engage the stopper at the bore and are urged radially inward toward the slot such that the resilient material of the post around the slot responds by exerting substantially constant outward forces on the ridges to maintain the stopper in any position moved thereto along the post even when the post and stopper are rotated relative to each other.