Graco Minnesota Inc.

Craig Joseph Wojciechowski

Diane Leigh Olson

Steven Dale Becker

David John Thompson

Harold D Johnson

Bradley H Hines

Mark D Shultz

Dale C Pemberton

William M Blenkush

Robert J Gundersen

Pamela J Muetzel

Jerry D Horning

Philip K Snider

Timothy J Kesti

Mariusz J Luczak

Katherine J Grathwohl

Kirsten N Norman

A spray tip comprises a tip body, a tip piece, and a pre-orifice piece. The tip body has a fluid channel along a channel axis (A). The tip piece is disposed within the fluid channel, and has a stepped, narrowing passage that terminates in an outlet orifice. The pre-orifice piece has an inlet passage, and is disposed within the fluid channel, abutting and immediately upstream of the tip piece. The pre-orifice piece and the tip piece together define a turbulating chamber therebetween.

Spray tip and method of manufacture

A spray gun includes a gun body having a front body portion and a spray cap assembly attached to the front body portion of the gun body. The spray cap assembly includes a nozzle assembly and a spray cap positioned over the nozzle assembly. The nozzle assembly includes a nozzle piece configured to attach to the front body portion of the gun body and an air flow guide surrounding the nozzle piece. The spray cap interfaces with the air flow guide. The air flow guide is configured to engage with the nozzle piece so that the air flow guide is prevented from moving past the nozzle piece.

Retention and disassembly of HVLP spray cap assembly

A spray tip () comprises a tip body (), a tip piece (), and a pre-orifice piece (). The tip body has a fluid channel () along a channel axis (Ac). The tip piece is disposed within the fluid channel, and has a stepped, narrowing passage () that terminates in an outlet orifice (). The pre-orifice piece has an inlet passage (), and is disposed within the fluid channel, abutting and immediately upstream of the tip piece. The pre-orifice piece and the tip piece together define a turbulating chamber () therebetween.

A fluid sprayer comprises a fluid source, a spray tip, a pump, and an outlet check value assembly. The spray tip has a fluid outlet aperture, and the pump is disposed to pump fluid from the fluid source out the fluid outlet aperture. The outlet check valve is disposed between the pump and the spray tip, and includes a sealing element, a seat, and a polymer housing. The seat is aligned to receive the sealing element, and the polymer housing is overmolded about the seat.

Sprayer with integrated valve seats

A high pressure capable fluid sprayer includes a piston pump, a main pump housing, and a spray tip. The piston pump has a piston disposed to pump a fluid. The spray tip has an outlet aperture configured to atomize and spray the fluid. The main pump housing is formed of compliant plastic and rated for at least 1600 psi, defines a main pump chamber surrounding the piston, and is disposed to receive fluid from a fluid source.

Resilient fluid housing

A fluid supply for a liquid sprayer includes a collapsible liner for holding the liquid; a cup for supporting the collapsible liner; a lid for connecting to the cup; and an air relief valve. The collapsible liner is secured relative to the lid and the cup. The lid includes an opening for connecting the lid to the pump.

Sprayer fluid supply with collapsible liner

Airless paint sprayer

HVLP sprayer

Airless sprayer

Growing community of inventors

Foley, MN, United States of America

Craig Joseph Wojciechowski