Adhesive dispensing pump control system

Details Adhesive dispensing pump control system Adhesive dispensing pump control system

1987-02-03

1988-11-29

McIntosh, John

Coating apparatus

Control means responsive to a randomly occurring sensed...

Responsive to condition of coating material

118697, 118410, B05C 502

Patent

active

047873329

ABSTRACT:
An improved adhesive dispensing pump control system for automatically changing the flow rate of adhesive materials being dispensed onto a workpiece in conformance with changes in movement of an automatically controlled adhesive dispensing nozzle used to apply adhesive materials automatically onto the surface of a workpiece in accordance with a predetermined pattern.
In operation, the adhesive or other mastic dispensing pump control system operates to maintain substantially constant inlet and outlet pressure difference across the dispensing pump thereby making the system relatively insensitive to changes in viscosity of the adhesive being dispensed and allowing adhesives to be dispensed at relatively high pressures.

REFERENCES:
patent: 1972565 (1934-09-01), Kempton
patent: 2547374 (1951-04-01), Carideo
patent: 2957428 (1960-10-01), Meyer et al.
patent: 2988009 (1961-06-01), Kraissl, Jr.
patent: 4564410 (1986-01-01), Clitheros et al.
patent: 4640222 (1987-02-01), Gerber
patent: 4692351 (1987-09-01), Maeda et al.

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