US 12,392,333 B2
Diaphragm pump drive for an electric pump
Bradley H. Hines, Andover, MN (US); Brian W. Koehn, Minneapolis, MN (US); and Paul W. Scheierl, Chisago City, MN (US)
Assigned to Graco Minnesota Inc., Minneapolis, MN (US)
Appl. No. 17/613,730
Filed by Graco Minnesota Inc., Minneapolis, MN (US)
PCT Filed Jun. 3, 2020, PCT No. PCT/US2020/035844
§ 371(c)(1), (2) Date Nov. 23, 2021,
PCT Pub. No. WO2020/247442, PCT Pub. Date Dec. 10, 2020.
Claims priority of provisional application 62/856,354, filed on Jun. 3, 2019.
Prior Publication US 2022/0235754 A1, Jul. 28, 2022
Int. Cl. F04B 43/02 (2006.01); F04B 9/02 (2006.01); F04B 17/03 (2006.01); F04B 35/04 (2006.01); F04B 43/04 (2006.01); F04B 43/073 (2006.01); F04B 45/04 (2006.01); F04B 45/047 (2006.01); F04B 53/22 (2006.01)
CPC F04B 43/026 (2013.01) [F04B 9/02 (2013.01); F04B 17/03 (2013.01); F04B 35/04 (2013.01); F04B 43/025 (2013.01); F04B 43/04 (2013.01); F04B 43/0736 (2013.01); F04B 45/043 (2013.01); F04B 45/047 (2013.01); F04B 53/22 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A displacement pump comprising:
an electric drive having a drive housing defining a pump axis;
a first fluid module mountable to an end of the drive housing, the first fluid module including:
a first adaptor configured to interface with the drive housing, the first adaptor comprising a first inner mounting portion and a first outer mounting portion, wherein the first inner mounting portion interfaces with the drive housing at a first interface;
a first cover configured to interface with the first outer mounting portion at a second interface; and
a first diaphragm captured between the first adaptor and the first cover;
wherein the first interface allows the first adaptor to be mounted at a plurality of adaptor mount positions; and
wherein the second interface is a clocked interface that allows the first cover to be mounted at a single cover mount position and prevents the first cover from being mounted at orientations other than the single cover mount position.