Apparatus for the selection, metering and delivery of liquids, i

Details Apparatus for the selection, metering and delivery of liquids, i Apparatus for the selection, metering and delivery of liquids, i

1982-12-03

1985-06-25

Chambers, A. Michael

Fluid handling

Systems

With pump

417138, 417148, 222 56, 340624, F04F 300

Patent

active

045248010

ABSTRACT:
A device for the selection, metering and delivery of treatment liquids for industrial laundry washers comprising a plurality of pumping units without positive displacement of pumping members. The pumping action is performed by a correlated combination of applications of pressure and vacuum on columns of the liquid that must be pumped. The delivery or pumping rate may be adjusted by setting on each pumping unit the quantity of the displaced material by sensing the displaced volume.

REFERENCES:
patent: 355817 (1887-01-01), Ghegan
patent: 3005417 (1961-10-01), Swaney
patent: 3435989 (1969-04-01), Lorenzen
patent: 3556682 (1971-01-01), Sakamoto et al.
patent: 3602607 (1971-08-01), Hodges
patent: 3676019 (1972-07-01), Self
patent: 3826113 (1974-07-01), Noraas et al.
patent: 4083661 (1978-04-01), McPherson et al.
patent: 4321107 (1982-03-01), Gottliebson

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