Fluid handling – Self-proportioning or correlating systems – Self-controlled branched flow systems
Patent
1988-02-10
1989-03-07
Tapolcai, William E.
Fluid handling
Self-proportioning or correlating systems
Self-controlled branched flow systems
13762414, 13762541, 415145, G05D 1103
Patent
active
048097284
ABSTRACT:
A water temperature cycling device for supplying intermittently hot and cold water for therapeutic benefits which has a cylindrical body (20) internally ported allowing water to drive a turbine (38) supplying rotational force to a rotor (48) through a speed reducing gear train (46). The speed of the cyclic action of the hot and cold water is governed by flow from a control valve (64) bypassing some of the flow from the turbine. The periodic repetitive changing from hot to cold is accomplished by a recessed portion (50) within the rotor (48). Each time the rotor makes a full rotation, the temperature changes completely as half of the circumference of the rotor is recessed. In another embodiment, the recessed portion is in a helical Archimedes curve shape allowing a more gentle effect. The device maintains a constant flow of combined hot and cold water regardless of the temperature change.
REFERENCES:
patent: 443532 (1890-12-01), Lund, Jr.
patent: 1304412 (1919-05-01), Toyokawa
patent: 2044921 (1936-06-01), Swanland
patent: 2413002 (1946-12-01), Shurtz
patent: 2651491 (1953-09-01), Ashton et al.
patent: 2842399 (1958-02-01), Strahman et al.
patent: 3458874 (1969-08-01), Fritz
Chen Ying T.
Luo Mary Z.
Cota Albert O.
Tapolcai William E.
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