Dynamically balanced suction relief for hydrotherapy tubs and sp

Details Dynamically balanced suction relief for hydrotherapy tubs and sp Dynamically balanced suction relief for hydrotherapy tubs and sp

1985-10-17

1986-07-29

Artis, Henry K.

Baths, closets, sinks, and spittoons

Tubs

Combined with diverse means

4541, 4492, 4504, 4544, 128 66, 2394285, A61H 3302

Patent

active

046023917

ABSTRACT:
A dynamically balanced suction relief is provided for a hydrotherapy tub or spa in which a controlled amount of water under pressure is supplied from the water pump to an air inlet duct to maintain a column of water in the air duct under normal conditions.

REFERENCES:
patent: 3159849 (1964-12-01), Jacuzzi
patent: 3378858 (1968-04-01), Jacuzzi
patent: 3420226 (1969-01-01), Berry, Sr.
patent: 3474469 (1969-10-01), Steltz
patent: 3890656 (1975-06-01), Mathis
patent: 3940807 (1976-03-01), Baker et al.
patent: 3946449 (1976-03-01), Mathis
patent: 3986217 (1976-10-01), Doerr
patent: 4115878 (1978-09-01), Johnson et al.
patent: 4359790 (1982-11-01), Chalberg
patent: 4402094 (1983-09-01), Sander

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