Abstract: A computer controlled fluid spray control system for spraying a plurality of different fluids is disclosed. The control system provides for the individual setting, sensing, adjustment and control of spray fluid pressure, atomizing air pressure, fan control air pressure and traversing speed of the spray gun which sprays the fluid to be applied to workpieces arranged on a moving conveyor line. Plant ambient conditions are monitored to allow and effectuate spray control setting adjustments. The preselected spray control settings may be temporarily or permanently changed as required.

Abstract: A heated filter arrangement is disclosed for apparatus for spraying or dispensing at predetermined intervals a predetermined amount of hot-melt adhesive so as to maintain the viscosity of the adhesive as it passes through the filter. The arrangement provides a heated filter between the adhesive supply line and the adhesive spray apparatus. A filter housing is provided in the outlet end of the supply hose. A heating element within the hose is used to heat the housing. A screen filter is positioned within the housing such that the adhesive flowing therethrough is maintained at a predetermined temperature. The outlet of the hose is connected to adhesive apparatus. In one embodiment, the filter is attached to a plug which is threadingly fitted in a hole at the outlet end of the hose. In this manner the filter extends up within its housing within the hose and the filter may be replaced or serviced without disturbing the connection between the supply hose and the adhesive applicator gun.

Abstract: Apparatus and a method for applying coextensive lines or dots of an adhesive comprising an airless, solenoid-operated, adhesive spray applicator having a plurality of individual applicators within a single housing including a flow distribution arrangement, and a transverse, internally-mounted filter. The filter may be removed and replaced without disturbing the flow lines. Virtually any spray pattern may be applied by staggering rows of applicators and electronically controlling the operation of the individual applicators.

Abstract: A marking apparatus comprises a plurality of containers of colored inks and a solvent connected to a mixing chamber and a rotating applicator. Insulated wire is marked by passing it through the applicator housing which collects the excess colored ink. The excess ink may be returned selectively to either the mixing chamber or a disposal container. Solvent purging of the system permits rapid changeover of colors.

Abstract: A double-acting, piston-type fluid pump is reversed in direction by solenoid valves actuated by electrical switches located at each end of the piston movement.

Abstract: A plurality of fluid pumps are programmed to deliver precise amounts of fluids which are mixed to produce a desired formulation. Each pump has a calibrated actuator attached along the length of the piston rod. A switch is mounted adjacent the segmented actuator to monitor the piston travel and supply information signals to the programming console for individual control of piston travel and consequently of the fluid being pumped.