Abstract: This application provides a mechanism that consists of right and left mounting bases that in different embodiments are adapted for mounting on a variety of different chairs. These mechanisms have roller tracks that have been designed on a radius with the fulcrum or pivot point positioned very close to where the center of mass is located, for a wide spectrum of different sized people from children through over-sized adults, to achieve varying degrees of movement. On the inside of the left and right mounting bases are curved slots that are parallel to the curvature of the roller tracks where guide members on the front and rear mounting brackets keep the seat and back rest from coming off the chair. There are front and rear rollers that traverse within the roller tracks that pivot on axles in the front and rear mounting brackets. In the curved slots on the sides are adjustable stop pins that limit the tilt or travel of the seat and back rest.

Abstract: The present invention involves a new and improved stable and portable bath transfer system that provides a disabled person complete access to bathroom facilities without having to transfer apparatus. The invention comprises a chair portion, a connector bridge portion, and a bathtub portion. The chair portion includes a base section with two or more support members and an upper chassis section including an adjustable backrest, a collapsible chair seat, and two swing-away armrests. The connector bridge portion includes connecting members attached by a cross member. The bathtub portion includes a base and four adjustable support members that provide increased stability and fine adjustment capability to match the chair portion height. The bath transfer system includes an interlocking system containing a continuous groove and lipped brackets to prevent the upper chassis section from tipping or lifting, and anti-roll mechanisms and a volitional latch to prevent undesired sliding of the upper chassis.