Rotary kinetic fluid motors or pumps – With separating means or guard for solid matter in working...
Patent
1987-07-09
1988-10-18
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
With separating means or guard for solid matter in working...
415188, 241 4606, F04D 702
Patent
active
047783362
ABSTRACT:
An improved cutter pump subassembly for use in a centrifugal pump adapted for chopping and pumping an influent liquid containing solids is disclosed. In such a cutter pump, a suction inlet, discharge outlet, means for driving an impeller and a cutter pump subassembly are provided. The improved cutter pump subassembly comprises a housing, an impeller and a stationary cutter. The housing defines a pump chamber and contains the impeller. The housing also contains a centrally located suction aperture that receives the influent liquid and a spiral channel that conducts the liquid out of the housing. The impeller has a shroud and impeller vanes and is rotatably driven by the means for driving an impeller. The impeller vanes each have an outer circumferential end and an inner shearing edge. The stationary cutter is secured adjacent the suction aperture. The cutter has teeth each having at least one blade. The blades cooperate with the impeller vane shearing edges to cut solids contained in the influent liquid during rotation of the impeller.
REFERENCES:
patent: 1287920 (1918-12-01), Duda
patent: 2323382 (1943-07-01), Dibovsky
patent: 3096718 (1963-07-01), Anderson
patent: 3155046 (1964-11-01), Vaughan
patent: 3318248 (1967-05-01), Rembold
patent: 3340812 (1967-09-01), Schlesiger
patent: 3388671 (1968-06-01), Stokes et al.
patent: 3444818 (1969-05-01), Sutton
patent: 3446151 (1969-05-01), Andersson
patent: 3447475 (1969-06-01), Blum
patent: 3560106 (1971-02-01), Sahlstrom
patent: 3627280 (1971-12-01), Fridman
patent: 3692422 (1972-09-01), Girardier
patent: 3786996 (1974-01-01), Richter
patent: 3866841 (1975-02-01), Iwahara
patent: 3915394 (1975-10-01), Ferguson, Jr.
patent: 3973866 (1976-08-01), Vaughan
patent: 4011027 (1977-03-01), Selder
patent: 4145008 (1979-03-01), Wolford
patent: 4361414 (1982-11-01), Nemes et al.
patent: 4402648 (1983-09-01), Kretschmer
patent: 4540334 (1985-09-01), Stahle
patent: 4594052 (1986-06-01), Niskanen
Advertisement for Hydr-O-Grind series pumps.
Advertisement for Gorman-Rupp brand grinder pumps.
Advertisement for LCC series chopper pumps.
Advertisement for SGV 201-204 series pumps from Peabody Barnes.
Advertisement for Enpo Pump Company pumps.
Advertisement for FE Myers pump showing replaceable grinder impellar and shredding ring.
Garrett Robert E.
Pitko Joseph M.
Weil Pump Company
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