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

Claim 18:
19. A system comprising:
a drive housing having a bottom and an opening on 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, the drive cavity having a front opening; and
a pump which axially reciprocates along an axis, the pump comprising:
a cylinder;
a pump rod that extends out from the cylinder, the pump rod comprising a head connected by a neck, the head wider than the neck, the pump rod and the driving link configured to connect together by the head inserting through the front opening into the drive cavity; and
a threaded ring located on the cylinder such that the cylinder extends above and below the threaded ring, the threaded ring rotatable around the cylinder;

wherein the pump is mounted to the drive housing by the threaded ring engaging the drive housing to secure the cylinder to the drive housing while the cylinder extends from below the drive housing up into the opening and while the pump rod extends within the drive housing so that the head is held within the drive cavity by the driving link while the neck extends downward within the driving link;
wherein the pump dismounts from the drive housing by the threaded ring disengaging from the drive housing which allows the head of the pump rod to slide out of the drive cavity through the front opening; and
wherein engagement of the threaded ring with the drive housing by rotation of the threaded ring prevents the head from sliding out of the drive cavity and disengagement of the threaded ring from the drive housing releases the head to slide out of the drive cavity.