Peristaltic pump with means to vary relative pumping volume betw

Details Peristaltic pump with means to vary relative pumping volume betw Peristaltic pump with means to vary relative pumping volume betw

1977-04-28

1979-01-02

Croyle, Carlton R.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

417477, 92 132, F04B 4308, F04B 4312, F04B 4506

Patent

active

041325095

ABSTRACT:
A device for entering dyes having a consistency, which may vary from a liquid to a pulverous state, into synthetic material processing machines, especially extrusion and injection molding machines, by means of a hose pump adjustable as to the quantity being delivered thereby. The device includes a rotor provided with rollers respectively rotatable about their own axes and about the axis of the rotor in the manner of planetary gears while at least one compressible conveyor hose of elastic material extends in contact with the rollers and between the latter and the interior of a pump housing which interior has a substantially circular cross section. The rollers roll on the hose or hoses while compressing same sectionwise and while the pressure zones circulate about the axis of the rotor. For purposes of adjusting the delivery quantity of the pump per revolution of the rotor, and adjusting device is provided for varying the hose volume respectively remaining between the pressure zones.

REFERENCES:
patent: 2898859 (1959-08-01), Corneil
patent: 3128717 (1964-04-01), Weiskopf
patent: 3415419 (1968-12-01), Jewett et al.
patent: 3463092 (1969-08-01), Meyer
patent: 3674383 (1972-07-01), Iles
patent: 3814388 (1974-06-01), Jakob
patent: 3865355 (1975-02-01), Eau Claire
patent: 3955902 (1976-05-01), Kyusgaard
patent: 4043712 (1977-08-01), Azzolini

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