Fluid handling – Processes
Patent
1988-06-16
1989-09-19
Cohan, Alan
Fluid handling
Processes
251 3001, 239 70, 13762412, B05B 130
Patent
active
048671894
ABSTRACT:
The length of time a bather can use a shower is controlled by a pair of timers and a solenoid operated valve. A first timer controls the length of time water flows through the shower by energizing and de-energizing solenoids. Another timer prevents the solenoids from being energized for a predetermined time period after the first timer has turned the water off. This prevents the shower from being turned on again until the time period has elapsed.
REFERENCES:
patent: 4230155 (1980-10-01), Frye
patent: 4345621 (1982-08-01), Dunckhorst
Automatic Specialties, Inc.
Cohan Alan
Crowley Richard P.
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