US 11,732,708 B2
Displacement pump mounting and retention
David J. Thompson, Oak Grove, MN (US); Christopher A. Lins, Waverly, MN (US); Andrew J. Kopel, Stanchfield, MN (US); Glen W. Davidson, Roseville, MN (US); Chad R. Taszarek, Albertville, MN (US); Chris W. Sydow, Becker, MN (US); William M. Blenkush, Becker, MN (US); and Steve J. Wrobel, Rogers, MN (US)
Assigned to Graco Minnesota Inc., Minneapolis, MN (US)
Filed by Graco Minnesota Inc., Minneapolis, MN (US)
Filed on Nov. 17, 2022, as Appl. No. 17/989,250.
Application 17/989,250 is a continuation of application No. 17/861,864, filed on Jul. 11, 2022, granted, now 11,530,697.
Application 17/861,864 is a continuation of application No. 17/688,360, filed on Mar. 7, 2022, granted, now 11,396,871, issued on Jul. 26, 2022.
Application 17/688,360 is a continuation of application No. 17/325,684, filed on May 20, 2021, granted, now 11,286,926, issued on Mar. 29, 2022.
Application 17/325,684 is a continuation of application No. 16/696,255, filed on Nov. 26, 2019, granted, now 11,035,359, issued on Jun. 15, 2021.
Application 16/696,255 is a continuation of application No. 14/984,212, filed on Dec. 30, 2015, granted, now 10,502,206, issued on Dec. 10, 2019.
Claims priority of provisional application 62/097,806, filed on Dec. 30, 2014.
Claims priority of provisional application 62/097,800, filed on Dec. 30, 2014.
Claims priority of provisional application 62/097,804, filed on Dec. 30, 2014.
Claims priority of provisional application 62/097,791, filed on Dec. 30, 2014.
Prior Publication US 2023/0082554 A1, Mar. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F04B 53/14 (2006.01); F04B 53/22 (2006.01); F04B 19/22 (2006.01); F04B 53/16 (2006.01); F15B 15/14 (2006.01); F04B 15/02 (2006.01)
CPC F04B 53/144 (2013.01) [F04B 19/22 (2013.01); F04B 53/147 (2013.01); F04B 53/162 (2013.01); F04B 53/22 (2013.01); F15B 15/1438 (2013.01); F04B 15/02 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A fluid spraying system comprising:
a displacement pump comprising:
a cylinder;
a pump rod at least partially disposed in the cylinder, the pump rod configured to reciprocate within the cylinder along a pump axis to cause the displacement pump to pump fluid
a drive housing configured to support the displacement pump by interfacing with the cylinder, wherein the drive housing includes a mounting cavity, a first housing opening of the mounting cavity, and a second housing opening of the mounting cavity;
a reciprocating drive connectable to the pump rod to drive reciprocation of the pump rod;
wherein the displacement pump is configured to shift laterally relative to the pump axis during mounting from a location outside of the drive housing and into the mounting cavity of the drive housing such that the displacement pump passes through the first housing opening by radial movement relative to the pump axis to mount to the drive housing and such that the cylinder slides within the second housing opening; and
wherein the displacement pump extends from within the mounting cavity and through the second housing opening with the displacement pump mounted to the drive housing.
 
20. A method of mounting a displacement pump to a drive housing in a spray system, the method comprising:
aligning the displacement pump with a first housing opening of the drive housing that is open to a mounting cavity of the drive housing;
shifting the displacement pump radially relative to a pump axis along which a piston of the displacement pump is configured to reciprocate, the piston projecting out of a first end of a cylinder of the displacement pump and configured to reciprocate relative to the cylinder, from a location outside of the drive housing and through the first housing opening such that the displacement pump passes through the first housing opening and into the mounting cavity by radial movement relative to the pump axis and such that the cylinder slides within a second housing opening of the drive housing, the displacement pump extending out of the mounting cavity through the second housing opening with the displacement pump mounted to the drive housing;
wherein the piston includes a shaft extending out of the cylinder, a neck formed at a first end of the shaft disposed outside of the cylinder, the neck having a neck width, and a head having a head width larger than the neck width, wherein the head is disposed at an end of the neck opposite the shaft;
wherein shifting the displacement pump radially relative to the pump axis further includes sliding the head within a receiving cavity formed in a reciprocating drive to connect the piston to the reciprocating drive, the reciprocating drive configured to drive reciprocation of the piston.