Patent ID: 6230731
Filing Date: 2001-05-15
Classification: F16K,G05D,H01L,Y10T

Abstract:
A method of registering a valve closure member on a valve seat comprising the steps of:lapping and polishing the valve seat to have a flat surface;lapping and polishing the closure member to have a flat surface;placing a puddle of adhesive on a valve actuator member that is capable of being actuated toward the valve seat;mounting the actuator on the flow controller body with the closure member positioned with the flat surface on the closure member adjacent the flat surface on the valve seat;actuating the actuator to move toward the valve seat to force the flat surface of the closure member against the flat surface of the valve seat with sufficient force to make the closure member squeeze the adhesive between the closure member and the actuator until the flat surface on the closure member registers in flat, juxtaposed relation against the flat surface on the valve seat and maintaining the actuation to hold the closure member in such flat, juxtaposed relation to the valve seat until the adhesive cures; anddeactuating said actuator.