Liquid metering system

Details Liquid metering system Liquid metering system

1993-11-03

1994-12-06

Gluck, Richard E.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

41747714, F08B 4308

Patent

active

053705106

ABSTRACT:
A pump device for metering and/or feeding liquid materials, particularly colorants and plasticizers for molded plastics. The pump consists of a linear metering tube which is straight throughout of length of the compression zone, thereby reducing stress and fatigue on the tube, thus prolonging tube life. The metering tube is compressed by compression rollers attached to an endless drive belt which moves within a track cut into a housing. In another embodiment of this invention, wherein the linear metering tube is inclined slightly, stresses on the tube are distributed over the tube by the gradual compression of the tube. The pump provides for simple, precise, long-life dispensing of polymer additives.

REFERENCES:
patent: 2123781 (1938-07-01), Huber
patent: 2466618 (1949-04-01), Stocks
patent: 3101674 (1963-08-01), Weiskopf
patent: 3523000 (1970-08-01), Miller
patent: 3582234 (1971-06-01), Isreeli
patent: 3712762 (1973-01-01), Kenney
patent: 3758239 (1973-09-01), Hrdina
patent: 3768934 (1973-10-01), Magerle
patent: 4529106 (1985-07-01), Broadfoot et al.
patent: 5024347 (1991-06-01), Baldwin

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