	US 11,927,184 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 Aug. 8, 2023, as Appl. No. 18/231,617.
Application 18/231,617 is a continuation of application No. 17/989,250, filed on Nov. 17, 2022, granted, now 11,732,708.
Application 17/989,250 is a continuation of application No. 17/861,864, filed on Jul. 11, 2022, granted, now 11,530,697, issued on Dec. 20, 2022.
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 2023/0383745 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F04B 53/14 (2006.01); F04B 19/22 (2006.01); F04B 53/16 (2006.01); F04B 53/22 (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)]

17 Claims

1. A pump mounting system comprising:

a drive housing including a mounting slot with a forward facing opening through a front of the drive housing, and a lower opening through a bottom of the drive housing; and

a driving link disposed within the drive housing, the driving link comprising a drive cavity;

a pump that reciprocates, the pump comprising:

a pump cylinder;

a pump rod partially disposed in the pump cylinder, the pump rod configured to reciprocate to pump fluid, and the pump rod comprising:

a neck formed at an end of the pump rod disposed outside of the cylinder, the neck having a neck width; and

a head connected to the neck, the head located above the neck, the head having a head width that is larger than the neck width of the neck; and

a first ring projecting from the pump cylinder and configured to support the pump on the drive housing and a second ring projecting from the pump cylinder, the second ring located below the first ring axially along the pump cylinder such that a gap is formed axially between the first ring and the second ring;

wherein the pump is configured to mount to the drive housing by being inserted through the forward facing opening such that the drive housing is received within the gap between the first ring and the second ring and such that the head slides into the drive cavity,

wherein the pump is configured to mount in the drive housing such that the pump extends from within the mounting slot down through the lower opening and the neck of the pump rod extends down within the drive cavity, and the first ring is disposed within the mounting slot to support the pump while the second ring is disposed outside of the mounting slot and in engagement with the bottom of the drive housing.

17. A pump mounting system comprising:

a drive housing including a mounting slot with a forward facing opening through a front of the drive housing, a lower opening through a bottom of the drive housing, and a flange extending partially about the lower opening; and

a driving link disposed within the drive housing, the driving link comprising a drive cavity, wherein the drive cavity includes a bottom opening, a front opening, and opposed flange ridges;

a pump that reciprocates, the pump comprising:

a pump cylinder;

a pump rod partially disposed in the pump cylinder, the pump rod configured to reciprocate within the pump cylinder along a pump axis to cause the pump to pump fluid, the pump rod comprising:

a neck formed at a top end of the pump rod and disposed outside of the cylinder, the neck having a neck width, the neck configured to extend through the bottom opening of the driving link when the pump is mounted to the drive housing; and

a head connected to the neck, the head located on the top end of the pump rod above the neck, the head having a head width that is larger than the neck width, the head configured to be held within the drive cavity by the opposed flange ridges as the neck extends down through the bottom opening of the driving link; and

a first ring projecting from the pump cylinder and configured to support the pump and a second ring projecting from the pump cylinder, the second ring located lower along the pump cylinder than the first ring such that a gap is formed axially between the first ring and the second ring;

wherein the pump is configured to mount to the drive housing by being inserted relative to the pump axis through the forward facing opening such that the flange is received within the gap between the first ring and the second ring and such that the head slides through the front opening and within the drive cavity;

wherein the pump is configured to mount in the drive housing such that the pump extends from within the mounting slot down through the lower opening of the drive housing and the neck of the pump rod extends down through the bottom opening of the driving link and the head is held by the opposed flange ridges, and such that the first ring is disposed within the mounting slot to support the pump while the second ring is disposed outside of the mounting slot and in engagement with the bottom of the drive housing.