Dispensing – Automatic control – Constant weight – volume or pressure control by output
Patent
1992-11-04
1994-05-17
Kashnikow, Andres
Dispensing
Automatic control
Constant weight, volume or pressure control by output
222 56, 1374875, 239 63, B67D 508
Patent
active
053120167
ABSTRACT:
A mastic control system for delivering a mastic material to a surface in a precisely controlled manner. The system includes a mastic pump, a regulator receiving the mastic from the pump, a nozzle receiving the mastic from the regulator, a transducer sensing the pressure of the mastic flowing through the nozzle, a comparator comparing a signal from the transducer and a command signal corresponding to a desired mastic pressure and operative to generate a control signal which is constantly adjusted in response to a sensed difference between the transducer signal and the command signal, and an air valve receiving the control signal and operative to selectively adjust a poppet valve of the regulator in a manner to adjust the delivery of the mastic to the nozzle in compensation for the sensed departure of the mastic pressure in the nozzle from the pressure value dictated by the command signal.
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Brennan Thomas J.
DeFillipi Michael
Derakshani Philippe
Johnstone Pump Company
Kashnikow Andres
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