Pumps – Condition responsive control of pump drive motor – Plural pumps having separate drive motors – supply sources,...
Patent
1985-05-06
1986-03-18
Schwadron, Martin P.
Pumps
Condition responsive control of pump drive motor
Plural pumps having separate drive motors, supply sources,...
137209, 417 32, 417 36, 417 38, F04B 4106
Patent
active
045765529
ABSTRACT:
A hydropneumatic tank control for a water supply system having a closed water tank (10), an air compressor (17) and a water pump (21, 22). A plurality of pressure switches (PS18, PS23, PS25, PS26) at the air compressor detect air pressure threshholds in the tank and a plurality of water level detector electrodes (32, 33, 34, 35) detect water level threshholds in the tank. A control causes the water pump to fill the tank to a pressure level or a water level at the operator's option. A pressure switch (PS2) in a tank adapter assembly (20) shuts down the system if an over pressure condition is detected. The compressor is housed in a waterproof housing (41) and cooled by a blower (48) passing air through the housing with thermostats (TH14, TH15, TH16) functioning to protect the compressor from overheating. A baffle 52 prevents the cooling air from recirculating through the housing.
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patent: 3540027 (1970-11-01), Rauth et al.
patent: 3929399 (1975-12-01), Aronson
patent: 4248053 (1981-02-01), Sisk
patent: 4371315 (1983-02-01), Shikasho
patent: 4444545 (1984-04-01), Sanders et al.
Moore Gerald L.
Novack Sheri M.
Schwadron Martin P.
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