Bathtub elevator

Details Bathtub elevator Bathtub elevator

1984-06-18

1985-12-10

Marcus, Stephen

Baths, closets, sinks, and spittoons

Tubs

Convenience accessories

4565, 4566, 91410, A47K 312

Patent

active

045570027

ABSTRACT:
A bathtub elevator consists of a floor frame, two tonglike guiding linkages, a lifting plate and two flexible lifting tubes, which are adapted to be filled with water under pressure. By means of a manually controllable valve, the flexible lifting tubes can be selectively connected to a supply line or to a drain line and can be shut off from both lines. An adjustable automatic elevation-limiting apparatus comprises a shutoff valve, which is incorporated in the supply line and actuated by means of a U-shaped member, which is displaced by the displaceable ends of the guiding linkage when the desired maximum elevation, which corresponds to the height of the bathtub, has been reached.

REFERENCES:
patent: 377840 (1888-02-01), Smith
patent: 602512 (1898-04-01), Lecher et al.
patent: 954040 (1910-04-01), Morrison
patent: 2734773 (1956-02-01), Ivins
patent: 3958282 (1976-05-01), Crowe
patent: 4407029 (1983-10-01), Schmidt
patent: 4419776 (1983-12-01), Schmidt

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