Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Patent
1976-12-01
1977-12-27
Yasich, Daniel M.
Pumps
Condition responsive control of pump drive motor
Responsive to accumulation of pumped liquid in receiver
73321, 200 84R, F04B 4904
Patent
active
040652262
ABSTRACT:
A means to monitor the depth of water in a well and to prevent a pump from operating if the water level falls to a predetermined level, consisting of float and weight means operating a depth indicator and cutoff switch.
REFERENCES:
patent: 1036408 (1912-08-01), Alfredson
patent: 1112111 (1914-09-01), Bowser et al.
patent: 1811952 (1931-06-01), Merritt
patent: 2752461 (1956-06-01), Euler
patent: 2874574 (1959-02-01), Patureau
patent: 3217541 (1965-11-01), Williamson
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