Volumetric metering device

Details Volumetric metering device Volumetric metering device

1986-10-31

1989-09-19

Rolla, Joseph J.

Dispensing

Supply containers with traps

With trap chamber cutoffs

222449, 222452, 222556, G01F 1128

Patent

active

048673536

ABSTRACT:
A volumetric metering device comprising a housing, a butterfly gate control unit and an adjuster to adjust the volume of a metering chamber whose operation is controlled by the butterfly gate control unit between a first condition to load the metering chamber with particulate material and a second condition to discharge the particulate material from the housing.

REFERENCES:
patent: 513803 (1894-01-01), Luster
patent: 1938942 (1933-12-01), Swartz
patent: 2787404 (1957-04-01), Vandenberg et al.
patent: 2893602 (1959-07-01), Barder et al.
patent: 3257045 (1966-06-01), Carpentier
patent: 3442423 (1969-05-01), Cozad
patent: 3916949 (1975-11-01), Armstrong
patent: 4102477 (1978-07-01), Yoon

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