US 6,981,852 B2
Strainer and valve release
Steven A. Anderson, Eden Prairie, Minn. (US)
Assigned to Wagner Spray Tech Corporation, Plymouth, Minn. (US)
Filed on May 01, 2003, as Appl. No. 10/427,446.
Prior Publication US 2004/0219027 A1, Nov. 04, 2004
Int. Cl. F04B 23/00 (2006.01); F04B 7/00 (2006.01)
U.S. Cl. 417—313 17 Claims
OG exemplary drawing
 
1. A combined strainer and valve release structure for a paint pump apparatus wherein the pump apparatus includes an inlet check valve, the combined strainer and valve release structure comprising:
a) a strainer positionable with respect to the inlet check valve and having at least one surface with apertures therethrough to permit flow of liquid to the check valve and to prevent movement of solids larger than the apertures from passing through the surface to the check valve; and
b) a pushrod connected to the strainer and located in a rest position adjacent a movable member of the check valve wherein the pushrod is movable to an actuated position to displace the movable member
wherein at least a portion of the strainer returns the pushrod from the actuated position to the rest position when the pushrod is released from the actuated position.