Patent ID: 9636699
Date: 2017-05-02
CPC Classifications: B05C,G01F

Claim:
1. A method of operating a dispenser to dispense material on a substrate, the dispenser comprising a dispensing unit including a housing having a chamber, a piston disposed in the chamber and axially movable within the chamber, and a nozzle coupled to the housing, the nozzle having an orifice co-axial with the chamber of the housing, an actuator coupled to the dispensing unit and configured to drive the up- and down movement of the piston, and a compliant assembly separate from the actuator, the method comprising: permitting limited relative travel between the actuator and the piston wherein the compliant assembly is secured to the piston and to the actuator assembly to provide reciprocating axial movement of the piston in response to the actuator, the compliant assembly including a flexure housing secured to the lever arm of the actuator and coupled to the piston to permit limited relative travel between the actuator and the piston during operation.