Patent ID: 9550204
Date: 2017-01-24
CPC Classifications: B05B,B05C

Claim:
1. A method of dispensing an adhesive from an adhesive module having a nozzle and a valve element, the nozzle including a liquid passageway and the valve element extending along an axis and having a bulbous end portion movable along the axis between an open position and a closed position, the bulbous end portion having a valve needle distally projecting therefrom along the axis, the method comprising; forcing the adhesive through a discharge passageway of the liquid passageway while the bulbous end portion of the valve element is in the open position to discharge the adhesive from an outlet of the discharge passageway; moving the valve element from the open position toward the closed position and moving the valve needle through a bore toward the discharge passageway while inhibiting obstruction of the discharge passageway as the valve needle moves through the bore; moving the valve element to the closed position to generate a localized pressure within the adhesive and cutting off the adhesive discharging from the outlet; and inserting at least a region of the valve needle into the discharge passageway to inhibit clogging of the adhesive proximate to the outlet.