Patent ID: 6131770
Filing Date: 2000-10-17
Classification: B05B,B05C

Abstract:
A dual pump delivery system for delivering a hot liquid to an applicator, the delivery system comprising:(a) a body including a first outlet and a second outlet;(b) a hopper operatively mounted on said body for containing the hot liquid;(c) a dual output positive displacement pump operatively mounted to the body for receiving the hot liquid from the hopper and discharging first and second flows of hot liquid;(d) a first flow course formed in the body for conducting the first flow from the dual output positive displacement pump to the first outlet of the body;(e) a first pressure relief valve operatively mounted to the body and in fluid communication with the first flow course, said first pressure relief valve activated in response to a predetermined pressure of the first flow in the first flow course to divert the first flow from the first flow course to the hopper;(f) a positive displacement flow meter operatively mounted to the body, the flow meter operable to measure a flow rate through the first flow course downstream of the first pressure releif valve;(g) a second flow course formed in the body for conducting the second stream from the dual pump to the second outlet of the body; and(h) a second pressure relief valve operatively mounted to the body and in fluid communication with the second flow course, the second pressure relief valve activated in response to a predetermined pressure of the second flow in the second flow course to divert the second flow from the second flow course to the first flow course up stream of the positive displacement flow meter.