公开(公告)号：US10167862B2

公开(公告)日：2019-01-01

申请号：US15178224

申请日：2016-06-09

Applicant: Graco Minnesota Inc.

Inventor： Daniel W. Celotta ,  John C. Holman

IPC: F04B9/04 ,  F04B49/12 ,  F04B1/04 ,  F04B53/16 ,  F01B29/00

Abstract: A pump assembly comprises a base, a cam, a cylinder, a piston, and a shim clip. The cam rotates about a rotational axis with respect to the base. The cylinder attaches to the base, and has an inlet port and an outlet for fluid. The piston is reciprocally driven by rotation of the cam to draw fluid into the cylinder through the inlet port during a fill stroke, and to close the inlet port and pump fluid in the cylinder toward the offset during a pump stroke. The shim clip is removably insertable between the cylinder and the base to increase the distance between the inlet port and the rotational axis.

公开(公告)号：US20180142835A1

公开(公告)日：2018-05-24

申请号：US15568278

申请日：2016-04-22

Applicant: Graco Minnesota Inc.

Inventor： John C. Holman ,  Brandon T. Gustafson

IPC: F16N13/22 ,  F16N11/08 ,  F16N13/02

Abstract: A vent valve for an actuator disposed in a lubricant reservoir includes a bore extending through the plate, a seal disposed within the bore proximate a top surface of the plate, a retaining member extending about a lower opening of the bore, and a ball disposed within the bore between the seal and the retaining member. The vent valve is configured to allow air to pass from a lower portion of a lubricant reservoir as lubricant fills the lower portion. The vent valve also allows air to pass to the lower portion of the lubricant reservoir as lubricant is dispensed from the reservoir. The vent valve closes when the lubricant level reaches the vent valve, thereby preventing lubricant from flowing through the vent valve. The sealed vent valve allows the actuator to rise in response to a rising lubricant level.

公开(公告)号：US20180112821A1

公开(公告)日：2018-04-26

申请号：US15568324

申请日：2016-04-22

Applicant: Graco Minnesota Inc

Inventor： John C. Holman ,  Mike V. Atkinson ,  Brandon T. Gustafson

IPC: F16N19/00 ,  F16N21/00 ,  F16K21/18 ,  F16K31/22 ,  F16K37/00

Abstract: An autofill shutoff valve includes a valve body mounted to a lubricant reservoir and secured to a fill tube extending into the reservoir. The autofill shutoff valve has a valve stem extending through the valve body and into the lubricant reservoir. The valve stem is actuated by a plate disposed within the reservoir from a first position, wherein lubricant flows from a lubricant inlet to a lubricant outlet through the valve body, to a second position, wherein the valve stem blocks the flow of lubricant through the valve body. The autofill shutoff valve provides lubricant directly to the reservoir, thereby eliminating external plumbing and the autofill shutoff valve also prevents overfill of the reservoir by cutting off the flow when the reservoir is full.

公开(公告)号：US20160281706A1

公开(公告)日：2016-09-29

申请号：US15178224

申请日：2016-06-09

Applicant: Graco Minnesota Inc.

Inventor： Daniel W. Celotta ,  John C. Holman

IPC: F04B49/12 ,  F04B9/04

CPC classification number: F04B49/125 ,  F01B29/00 ,  F04B1/0421 ,  F04B9/042 ,  F04B53/16 ,  F04B53/162 ,  F04B53/168

Abstract: A pump assembly comprises a base, a cam, a cylinder, a piston, and a shim clip. The cam rotates about a rotational axis with respect to the base. The cylinder attaches to the base, and has an inlet port and an outlet for fluid. The piston is reciprocally driven by rotation of the cam to draw fluid into the cylinder through the inlet port during a fill stroke, and to close the inlet port and pump fluid in the cylinder toward the offset during a pump stroke. The shim clip is removably insertable between the cylinder and the base to increase the distance between the inlet port and the rotational axis.