Removable impeller assembly for printing press centrifugal pump

Details Removable impeller assembly for printing press centrifugal pump Removable impeller assembly for printing press centrifugal pump

1976-02-13

1977-09-20

Husar, C. J.

Pumps

Motor driven

Including means for facilitating assembly or disassembly of...

416244A, 403301, F04B 3914

Patent

active

040493644

ABSTRACT:
A centrifugal pump assembly, having a removable impeller assembly for use in conjunction with ink reservoirs of printing press apparatuses. There is provided a centrifugal pump assembly comprising motor mounting means for mounting the motor with respect to the cover member of an ink reservoir. The shaft of the motor extends downwardly into the reservoir and has secured thereto a coupling sleeve. The coupling sleeve includes means for securing the same to the motor shaft and means for releasably engaging the impeller shaft of the pump assembly. The impeller shaft is provided with a positive drive pin adapted to fit into a slot formed in the coupling sleeve to thereby properly align said impeller shaft with respect to the impeller housing and to insure proper positive connection of the impeller shaft with respect to the motor shaft for corresponding rotational movement therewith. An alternate embodiment utilizes a hollow barrier sleeve to prevent ink from traveling upwardly into the motor. The impeller engages the portion of the shaft of the motor which extends below the barrier sleeve utilizing a flat on the shaft of the motor engaged within a semi-circular opening in the impeller. The releasable engagement of the impeller wth respect to the motor shaft permits disengagement of the motor from the centrifugal pump assembly prior to washing and cleansing operations of the impeller assembly and ink reservoir.

REFERENCES:
patent: 2252855 (1941-08-01), Lasch
patent: 2280979 (1942-04-01), Rocke
patent: 2326360 (1943-08-01), Ingersoll
patent: 2445182 (1948-07-01), Odey
patent: 2525370 (1950-10-01), Pollak
patent: 2764943 (1956-10-01), Peters
patent: 2875697 (1959-03-01), Fernstrum
patent: 3056911 (1962-10-01), Hart et al.
patent: 3145018 (1964-08-01), Goodwiler
patent: 3169403 (1965-02-01), McGinn
patent: 3947152 (1976-03-01), Ross et al.

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