Chopper pump

Details Chopper pump Chopper pump

1981-08-31

1983-09-06

Hornsby, Harvey C.

Rotary kinetic fluid motors or pumps

With separating means or guard for solid matter in working...

415206, 415196, F04D 2970

Patent

active

044026480

ABSTRACT:
A chopper pump for pumping and chopping a slurry which contains fibrous material. The pump includes a housing having a bottom inlet and a tangential outlet. A single vane impeller is mounted for rotation within the housing and a generally square cutter blade is mounted on the vane and rotates in proximity with fixed cutter teeth on the housing to thereby comminute solid materials. Extending downwardly from the vane of the impeller through the inlet opening is a generally curved fin or blade that is concentric with the axis of rotation of the impeller and has a sharpened leading diagonal edge adapted to cut stringy fibrous material.

REFERENCES:
patent: 2665853 (1954-01-01), Nicholson, Jr.
patent: 3417929 (1968-12-01), Secrest
patent: 3432107 (1969-03-01), Johnson
patent: 3563291 (1971-02-01), Anderson
patent: 3738581 (1973-06-01), Gallauresi et al.
patent: 3847360 (1974-11-01), Seydelmann
patent: 3866841 (1975-02-01), Iwahara
patent: 3948450 (1976-04-01), Erlitz
patent: 3973866 (1976-08-01), Vaughan
patent: 4036442 (1977-07-01), Barnes
patent: 4141510 (1979-02-01), Smith
patent: 4347035 (1982-08-01), Stahle

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