Graco Minnesota Inc.

Charles W Dawson

Pamela J Muetzel

Diane Leigh Olson

Christopher A Lins

Barry W Mattson

Douglas S Ryder

Daniel R Johnson

Mariusz J Luczak

Bret A Deneson

Thomas L Triplett

Steven H Fredrickson

Dale C Pemberton

Bradley H Hines

Steve J Wrobel

William M Blenkush

Glen W Davidson

Robert W Kinne

Bradley K Voigt

Steve D Becker

Various embodiments concern a handheld paint sprayer for spraying a paint. The sprayer can comprise a shell body comprising a door that, when opened, exposes an opening into an interior of the shell body, the door configured to close over the opening. The sprayer can further comprise a trigger connected to a handle, a motor in the interior, and a paint reservoir connected to the shell body. The sprayer can further comprise a nozzle in fluid communication with the reservoir and a pump located in the interior of the shell body. The pump is operated by the motor, the pump configured to pump the paint from the reservoir out of the nozzle as a spray. The pump is removable from the interior of the shell body through the opening when the door is opened but is not removable through the opening when the door is closed.

Airless handheld sprayer repair

A portable hydraulic power unit includes a frame, a fluid tank supported by the frame, and a manifold supported by the frame. The fluid tank is configured to store a supply of hydraulic fluid for powering a hydraulically-driven tool. A reciprocating pump is mounted on the exterior of the fluid tank and on the exterior of the manifold. The reciprocating pump is secured to the fluid tank and the manifold with fasteners extending through a cylinder body of the reciprocating pump.

Portable hydraulic power unit

Portable hydraulic power unit having a pump fixed to an exterior side of a fluid supply tank

Handheld airless paint sprayer repair

Control pendant

A portable hydraulic power unit includes a fluid tank supported on a frame, a first pump configured to draw hydraulic fluid from the tank and a second pump configured to draw hydraulic fluid from the tank. The portable hydraulic power unit further includes a two-way valve disposed on a high-flow line extending from an output of the second pump, the two-way valve movable between an open state and a closed state. The two-way valve is electrically-actuated and configured to shift to the open state based on a hydraulic fluid pressure in a combined flow line downstream of the first pump and the second pump exceeding a threshold pressure level. The two-way valve directs the output of the second pump back to the fluid tank when the two-way valve is in the open state.

Solenoid valve for a portable hydraulic power unit

A trigger guard for a pendant for controlling a hydraulic power unit includes a first prong extending from a front side of a handle of the pendant; a second prong extending from the front side of the handle; a groove disposed between the first prong and the second prong, the groove defined by the first prong, the second prong, and the handle; a first gap disposed between the first prong and a head of the pendant; and a second gap disposed between the second prong and the head. The trigger is disposed between the first prong and the second prong such that the trigger is accessible through the groove, the first gap, and the second gap.

Trigger guard and pendant for a portable hydraulic power unit

Airless sprayer

An adapter allows direct connection of a handheld spray device to paint cans of varying dimensions. The adapter includes a cage for holding the paint can, a cap that connects the cage to the handheld spray device, and a gasket that seals the open upper end of the paint can to the cap. The adapter may also include a suction tube extension that is connectable between the pump inlet and the suction tube of the spray device. A can spacer insert is positionable in the cage to elevate paint cans of varying heights so that the upper ring of the paint can engages the gasket.

Paint can adapter for handheld spray device

An adapter () allows direct connection of a handheld spray device () to paint cans (A,B,C), of varying dimensions. The adapter () includes a cage () for holding the paint can (A,B,C), a cap () that connects the cage () to the handheld spray device (), and a gasket () that seals the open upper end of the paint can (A,B,C) to the cap (). The adapter () may also include a suction tube extensionthat is connectable between the pump inlet () and the suction tube () of the spray device ().

Airless paint sprayer

A control valve for a fluid dispensing device comprises a valve stem, a valve body, a cap and an adjustment mechanism. The elongate valve stem has a flange. The valve body comprises a valve bore in which the elongate valve stem is configured to translate, and a flow path intersecting the valve bore and into which the valve stem penetrates. The cap is joined to the valve body to receive the valve stem such that the flange is positioned between the valve body and the cap. The adjustment mechanism changes a position of the cap with respect to the valve body to vary a distance between the cap and the flange which adjusts the force, and thereby the pressure at which the valve opens.

Control valve for airless sprayer pressure adjustment

In airless spray tip assemblyshown in FIG., cylindercontains tipand is at one end of dead zone. Shutoffis comprised of balland seat. The needle seathas been mated to each tip assembly(See FIG.). By mating the tipand the seat assembly (shutoff)into one, the sealcan be moved out of the 'dead zone'thus reducing spit volume and energy storage.

Airless spray tip

Growing community of inventors

Big Lake, MN, United States of America

Charles W Dawson