Graco Inc.

Wagner Spray Tech Corporation

James J Handzel

Christopher J Sulzer

Joseph W Kieffer

Richard Paul Anderson

Bradley K Voigt

Christopher W Carleton

Neal A Werner

Kent P Hand

Eric C Lagman

Eric J Schaffer

Scott C Losey

The present disclosure generally relates to a sprayer for a fluid delivery system. In one example, a sprayer for a fluid delivery system is provided. The sprayer includes a main body having a handle and a trigger. The sprayer also includes a spray head having a fluid input for receiving fluid material and a fluid output for spraying the fluid material. The spray head is removably couplable to the main body by rotating the spray head with respect to the main body to engage a connection component of the spray head to a corresponding connection component of the main body. The sprayer also includes a spray head locking mechanism on the main body that extends to engage a portion of the spray head.

Sprayer for a fluid delivery system

A conventional liquid spray gun having a compressed air supply equipped with a liquid, e.g. paint, container for supplying the liquid to be sprayed onto a target surface. The container has a closed bottom, an open top and a cylindrical sidewall. A removable cover is attached over the open top of the container, and the cover has a pair of apertures extending through it, one of which holds a proximal end of a rigid tube whose distal end extends to a point close to the container's bottom. Slidingly mounted on the rigid tube is a generally circular, movable plunger whose periphery engages the cylindrical sidewall of the container. Pressurized air injected through the second aperture in the cover forces the plunger against the liquid's surface and causes the liquid to flow through the lumen of the rigid tube to the liquid inlet port of the spray gun.

Liquid supply attachment for spray gun

Fluid delivery system

Fluid pump assembly

The construction and operation of the control of this invention is designed to minimize pressure changes at pump changeover by sampling pump pressure characteristics for each pump cycle, calculating a compensating motion profile and applying the profile to the motor which drives the pump. This control can be used with any pump which has the following characteristics: positive displacement, repeating cycle characteristics, rotary motor drive and an output pressure cycle curve which never falls to zero.

Electronic CAM compensation of pressure change of servo controlled pumps

A reciprocable liquid pump having a priming cylinder affixed beneath the lower valve housing, and a priming piston rod affixed to the lower end of the pump piston valve assembly. A priming piston and priming valve are affixed to the lower end of the priming piston rod, the priming piston being slidable over a limited range of movement along the priming piston rod and having a central opening with a beveled valve seat. The priming valve forms a conical valve surface which is engageable against the priming piston valve seat to provide a controllable flow path through the center opening of the priming piston.

High viscosity material pump having valved priming piston

Reciprocating pump

An improvement in reciprocable liquid pump construction to facilitate maintenance and repair of certain high-wear pump components without the necessity of removing the pump from the work site. The pump has a threadable and removable cylinder, intake housing, piston, piston packing and glands, piston and inlet ball checks and seats, and ball check housings.

Liquid pump

The wiper plate is designed for ue with a variety of five gallon pails including both straight and tapered pails as well as with either cart applications or with rams. One unit allows a variety of pails to be utilized with the one device. Primary and secondary wipers provide continued contact with a tapered pail. For straight sided pails, a reversible tapered spacer provides varying wiper flexibility depending on whether the unit is going to be used with the ram or cart-mounted pail.

Growing community of inventors

Golden Valley, MN, United States of America

James J Handzel