Graco Minnesota Inc.

Graco Inc.

William M Blenkush

David John Thompson

Bradley H Hines

Glen W Davidson

Steve J Wrobel

Chad R Taszarek

Chris W Sydow

Diane Leigh Olson

Christopher A Lins

Andrew J Kopel

Eric J Finstad

Harold D Johnson

Jimmy Wing Sum Tam

Jerry D Horning

Philip K Snider

Marius J Luczak

Jeromy D Horning

August F Legatt

Mariusz J Luczak

James C Schroeder

Thomas F Janecek

Mark D Shultz

Brett J Carlson

David M Larsen

Dale C Pemberton

Joshua D Roden

Robert J Gundersen

Steven Dale Becker

Barry W Mattson

Thomas E Kariniemi

Pamela J Muetzel

Robert W Kinne

Charles W Dawson

Steven R Kuczenski

John M Svendsen

Craig Joseph Wojciechowski

Matthew R Theisen

Andrew J Ericson

Alexander J Daeger

Bryan K Colby

Jeremy P Jurmu

Jason P Iverson

Arthur T Graf

Alexander L Kapelevich

Steve D Becker

Benjamin J Hitter

Dennis R Peterson

Philp K Snider

Steve R Blanchette

Marius Luzak

Jimmy Wing Sun Tam

Phil Snider

A displacement pump is configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A tightening ring connects the displacement pump to the drive housing to mount the displacement pump to the drive housing.

Pump mounting and driving

A displacement pump is configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A flange projects from a pump body of the pump and a ring projects from the pump body of the pump. A portion of the drive housing is received in a gap between the flange and the ring.

Pump rod and driving link with side-load reducing configuration

A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston disposed within a cylinder. The piston is configured to pressurize at least one pumping chamber. A motor is coupled to the housing and connected to the reciprocating piston fluid pump to actuate the piston. A wobble assembly connects the motor to the piston of the reciprocating piston fluid pump. A spray tip connected to an outlet of the at least one pumping chamber.

Portable airless sprayer

A fluid spraying system includes a displacement pump configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A tightening ring that includes threading is configured to rotate about a cylinder of the pump and shift axially along the cylinder and engage with a bottom side of the drive housing to secure the displacement pump to the drive housing.

Displacement pump mounting and retention

This disclosure presents several options for spraying paint on large elevated surfaces. In a first example, a lift is equipped with sensors to move a painter along the wall in a serpentine pattern while maintaining a constant separation distance and orientation to facilitate spraying of the wall. In a second example, a spray stamp frame is positioned on the wall in a plurality of different positions to spray discrete portions of the wall by a slide bar that moves along the spray stamp frame at each position. In a third example, one or more cables are strung between vertical supports along the wall and a spray module is moved along or by the cables to spray the horizontal stripe, and this process is repeated to spray a plurality of horizontal stripes at different elevations to spray the wall.

Systems for high production exterior wall spraying

A fluid spraying system includes a displacement pump configured to mount to a drive housing. A reciprocating drive is connectable to a pump rod of the displacement pump and includes a connecting rod and a drive link that receives a head of the pump rod. A tightening ring that includes threading is configured to rotate about a cylinder of the pump and shift along the cylinder and engage with a bottom side of the drive housing to secure the displacement pump to the drive housing.

A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.

A pump rod has a head extending from a neck, and the head is received within a drive slot of a drive link. The head includes a projection, and has an area smaller than an area of the head. The projection contacts an inner surface of the drive slot. The drive link may include a projection aligned with a centerline of the drive link. The drive link projection contacts a head of the pump rod. The projections provide a reduced contact area between the pump rod and the drive link, thereby reducing any side-loading on the pump rod and increasing a lifespan of the wear parts.

A packing insertion tool for inserting a packing stack into a cylinder of a piston pump includes a packing holder on which the packing stack is mounted. The packing holder includes a body, a handle disposed at a first end of the body, and a plurality of fingers disposed at a second end of the body. The fingers extend axially from the body and the packing stack is mounted on the fingers, between the body and a retaining feature disposed at a distal end of the fingers. The fingers can flex to allow the diameter of the distal end of the fingers to change as the packing stack slides on to and off of the fingers.

Packing insertion tool for paint and other fluid pumps

Growing community of inventors

Becker, MN, United States of America

William M Blenkush