B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/2, 117/54, 32
B05B 5/16 (2006.01) B05B 7/26 (2006.01) B05B 12/14 (2006.01)
Patent
CA 1320826
P-307 ELECTROSTATIC SPRAY COATING APPARATUS FOR APPLYING TWO COMPONENT MIXTURE ABSTRACT OF THE DISCLOSURE A spray coating apparatus (10) for applying a paint composed of a controlled mixture of two liquid components. A first gear pump (32) is disposed in a spray booth (30) and pumps the first component to an applicator (14). A second gear pump (36) in the spray booth (30) pumps the second component to the applicator (14). A manifold (44) is disposed between the two gear pumps (32, 36) and the applicator (14) for mixing the two paint components. A variable speed motor (16, 20) controls the rate of fluid pumped by each of the gear pumps (32, 36). Each motor (16, 20) includes an encoder (27, 29) sending feedback signals to an adjustor module (24) which compares the instantaneous speed of each motor (16, 20) with a reference speed, then adjusts the instantaneous speed of each motor (16, 20) to conform with the reference speeds thereby adjusting the ratio between the volumetric flow rates of the first and second components with respect to a reference ratio.
614312
Behr Industrial Equipment Inc.
Smart & Biggar
LandOfFree
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