US 6,981,511 B2
Method and apparatus for servicing a pressurized system
Steven M. Knowles, Silver Lake, Ind. (US); and Terrence D. Kalley, Troy, Mich. (US)
Assigned to Prime Solutions, LLC, Troy, Mich. (US)
Filed on Apr. 01, 2003, as Appl. No. 10/402,937.
Application 10/402937 is a continuation of application No. 09/422236, filed on Oct. 21, 1999, granted, now 6,539,970.
Prior Publication US 2005/0098213 A1, May 12, 2005
Int. Cl. F16K 24/00 (2006.01); F16L 55/07 (2006.01)
U.S. Cl. 137—1 10 Claims
OG exemplary drawing
 
4. A method of venting a pressurized system comprising moving a purge actuator from a closed position to an open position, the purge actuator being a portion of a coupling member or a portion of a purge fitting having a fluid inlet, a fluid outlet, and a vent port, the purge actuator having a button adjacent to the vent port wherein the purge actuator includes a shaft extending into the body to a shaft retaining member and into a recess of a plug in the body, the fluid inlet and the fluid outlet being in fluid communication when the purge actuator is in the closed position, and the vent port, the fluid inlet and the fluid outlet being in fluid communication when the purge actuator is in the open position, flow between the fluid inlet and the fluid outlet being substantially unrestricted when the purge actuator is in the open position and the closed position.