Patent ID: 7992234

Claim:
A seat assembly for sliding along and on opposing rims of a bathtub, the seat assembly comprising: a seat member; a friction element affixed to the seat member so as to extend under the seat member; and a flexible slider affixed to the seat member so as to also extend under the seat member; wherein the slider and friction element are positioned and configured so that: (i) in a first state, if the seat member is positioned on the opposing rims without additional weight on the seat member, the slider holds the friction element up off the rims while facilitating sliding of the seat member along and on the rims; and (ii) in a second state, if the seat member is positioned on the opposing rims with a human weighing over 50 pounds sitting on the seat member, the human merely sitting on the seat will drive the friction element into contact with the rims and thereby will impede sliding of the seat member along the rims; and wherein there are two such sliders and two such friction elements, one such slider being positioned adjacent each of said opposing rims adjacent ends of the seat member, and one such friction element being positioned adjacent each of opposed ends of the seat member.