A control system and method is disclosed for a plaster pump 10. A pair of nozzles A, B dispenses material pumped from the nozzle and are connected by a "Y"-branch 50 in supply lines 11a and 11b to pump manifold 10a. Actual pressure signals 14a are compared in a comparator 16 to preset pressure signal...http://www.google.com.au/patents/US4850513?utm_source=gb-gplus-sharePatent US4850513 - Control system and method for high production plaster pump
