Pumps – Motor driven – Electric or magnetic motor
Patent
1977-09-30
1979-01-23
Croyle, Carlton R.
Pumps
Motor driven
Electric or magnetic motor
F04B 3504, F16D 2701
Patent
active
041358635
ABSTRACT:
An improved impeller for a pump of the type wherein the impeller is sealed within a pump housing and driven by a rotating external drive magnet magnetically coupled to an impeller magnet forming a portion of the impeller.
REFERENCES:
patent: 2783401 (1957-02-01), Foster et al.
patent: 3299819 (1967-01-01), McCoy
patent: 3490379 (1970-01-01), Laing
patent: 3938914 (1976-02-01), Zimmermann
Davis Lee W.
Hollingsworth James S.
Roberts Leo L.
Croyle Carlton R.
Little Giant Corporation
Smith Leonard E.
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