Baths – closets – sinks – and spittoons – Tubs – Means for agitating or circulating water in a tub
Patent
1994-11-09
1996-11-05
Fetsuga, Robert M.
Baths, closets, sinks, and spittoons
Tubs
Means for agitating or circulating water in a tub
4504, 417 38, 200 83J, 200 83Z, A47K 300, E04H 412
Patent
active
055704816
ABSTRACT:
A suction-actuated control system (10) for a whirlpool bath/spa installation includes a suction-side transducer (52) connected in the suction inlet path and a controller (54). The suction-side transducer (52) transmits an air pulse to the controller (54) when pressure in the suction path drops below a pre-determined value caused, for example, by a full or partial blockage of a suction cover (26) by a wash cloth or an article of clothing. The controller (54) includes an electric switch (62) in circuit with the recirculation pump (34) and a bi-state controller (66) that actuates the electric switch (62) between its ON state and its OFF state. An abnormally low pressure in the suction path to the recirculation pump (34) caused by a full or partial blockage of the suction cover (26) will cause the controller (54) to shut-off the recirculation pump (34). After the obstruction is removed and a short time delay, the user can actuate a user ON/OFF control (56) to restart the pump (34).
REFERENCES:
patent: 2680168 (1954-06-01), Murphy
patent: 2767277 (1956-10-01), Wirth
patent: 4107492 (1978-08-01), Moon, Jr. et al.
patent: 4460812 (1984-07-01), Asahi
patent: 4620835 (1986-11-01), Bell
patent: 4762969 (1988-08-01), Tracey
patent: 4783580 (1988-11-01), Bassin
patent: 4867645 (1989-09-01), Foster
Mathis Cleo D.
Miller Robert A.
Romano Scott A.
Tracey Peter M.
Fetsuga Robert M.
Vico Products Manufacturing Co., Inc.
Walter Wallace G.
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