US 12,117,018 B2
Drive side liner for a centrifugal pump
Randy James Kosmicki, Edgerton, WI (US)
Assigned to WEIR SLURRY GROUP, INC., Madison, WI (US)
Appl. No. 17/926,814
Filed by Weir Slurry Group, Inc., Madison, WI (US)
PCT Filed May 28, 2021, PCT No. PCT/AU2021/050520
§ 371(c)(1), (2) Date Nov. 21, 2022,
PCT Pub. No. WO2021/237303, PCT Pub. Date Dec. 2, 2021.
Claims priority of provisional application 63/032,073, filed on May 29, 2020.
Claims priority of application No. 2020902180 (AU), filed on Jun. 29, 2020.
Prior Publication US 2023/0193926 A1, Jun. 22, 2023
Int. Cl. F04D 29/42 (2006.01); B25B 1/24 (2006.01); B25B 27/14 (2006.01); F04D 7/04 (2006.01); F04D 29/62 (2006.01); F16B 2/10 (2006.01)
CPC F04D 29/4286 (2013.01) [B25B 1/2463 (2013.01); B25B 27/14 (2013.01); F04D 7/04 (2013.01); F04D 29/628 (2013.01); F16B 2/10 (2013.01); F05D 2230/70 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A drive side liner for a centrifugal slurry pump, wherein the centrifugal slurry pump includes an outer casing, a main liner and an impeller driven by a drive shaft, wherein the main liner and drive side liner are housed within the outer casing of the centrifugal slurry pump, the drive side liner including:
an inner liner portion including a central aperture configured to receive the drive shaft and wherein a sealing face of the inner liner portion is arranged to contact a drive shaft seal to form an inner seal, the drive side liner further including an outer liner portion arranged to surround the inner liner portion, the outer liner portion having an outer face that is arranged to contact the outer casing and/or the main liner to form an outer seal, wherein the inner liner portion and the outer liner portion are each configured to removably engage with one another and the outer casing and wherein the outer liner portion is arranged to be removable from the outer casing and the inner liner portion without compromising the inner seal, and wherein the inner liner portion is arranged to be removable from the drive shaft and the outer liner portion without compromising the outer seal.