Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Patent
1979-01-10
1981-06-30
Croyle, Carlton R.
Pumps
Condition responsive control of pump drive motor
Responsive to accumulation of pumped liquid in receiver
417360, F04B 4904
Patent
active
042759951
ABSTRACT:
An electric motor driven bilge pump particularly for marine use is described having an outer housing of molded synthetic plastic having inlet openings for the liquid to be pumped with a bottom closure plate detachably secured thereto and a motor housing of molded synthetic plastic carried in the outer housing and containing an electric motor with a vertical shaft extending below the motor housing and having an impeller thereon, a pump housing or chamber of molded synthetic plastic carried on the lower end of the motor housing and supported and positioned in the outer housing, the outer housing having a space therein for a float operated motor controlling switch carried on the pump chamber, the motor housing having packing members for preventing leakage from the pump chamber to the motor chamber with provisions for cooling the pump bearings.
REFERENCES:
patent: 2697196 (1954-12-01), Harper
patent: 2829598 (1958-04-01), Zimmermann et al.
patent: 3256828 (1966-06-01), Rule
patent: 3316845 (1967-05-01), Schumann
patent: 3318248 (1967-05-01), Rembold
patent: 3408942 (1968-11-01), Davenport et al.
patent: 4013383 (1977-03-01), Rule
patent: 4171186 (1979-10-01), Chapman
Croyle Carlton R.
Look Edward
Wobensmith, 2nd Zachary T.
Wobensmith, III Zachary T.
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