Patent ID: 11873809
Assignee: GRACO MINNESOTA INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. A system, comprising:
a drive housing having a bottom and an opening extending through the bottom of the drive housing; and
a driving link located within the drive housing, the driving link comprising a drive cavity located within the drive housing; and
a pump which axially reciprocates along an axis, the pump comprising:
a pump body comprising a top end;
a pump rod that extends out from the top end of the pump body, the pump rod comprising a head connected by a neck, the head wider than the neck; and
a threaded ring located on the pump body such that the pump body extends above and below the threaded ring, the threaded ring configured to rotate around the pump body;

a frame that includes a plurality of legs that extend downward from the drive housing to support the drive housing, the plurality of legs extending below the pump when the pump is mounted to the drive housing;
wherein the pump mounts to the drive housing by the threaded ring rotating to move axially upwards to tighten up against the bottom of the drive housing to secure the pump to the drive housing while the pump body extends into the opening such that the pump hangs down from the drive housing and while the pump rod extends up within the drive housing so that the head is received within the drive cavity of the driving link and the neck extends downward within and out of the driving link, and
wherein the pump dismounts from the drive housing by the threaded ring rotating to move axially downwards to disengage from the bottom of the drive housing to loosen the pump relative to the drive housing which releases the head of the pump rod to slide laterally out of the drive cavity of the driving link and then the pump rod to be withdrawn from the drive housing.