Electronic plural component proportioner

Details Electronic plural component proportioner Electronic plural component proportioner

2005-05-24

2005-05-24

Bomberg, Kenneth (Department: 3754)

Dispensing

Automatic control

By weight, volume or pressure of a second dispensed material

C222S063000, C222S135000, C222S145500, C222S309000

Reexamination Certificate

active

06896152

ABSTRACT:
An electronic apparatus is provided for dispensing plural component materials having first and second (and optionally third) components and a desired ratio between the components. The apparatus has first and second reciprocating pumps (4), each of the pumps (4) being connected to a source of one of said components, first and second reciprocating drivers (5), each driver (5) being connected to drive one of the pumps and forming a driver-pump set, a position sensor (6) attached to each driver-pump set, each position sensor (6) outputting increments of resolution corresponding to a fixed volume being pumped by the driver-pump set to which it is connected, and a controller attached to the drivers and the position sensors to alternately move one of the driver-pump sets one said increment and the other of the driver-pump sets the product of one increment and the ratio.

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patent: 5605252 (1997-02-01), Owen et al.
patent: 6135724 (2000-10-01), Yoder et al.

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