Graco Minnesota Inc.

Michael J Sebion

Mark T Weinberger

Richard D Anderson

Christopher J Pellin

Peter L Linder

Douglas P Zittel

Mark C Richter

Michael A Cryer

Mark C Richler

Douglas Zittel

A plural component spray gun () is designed for spraying quick setting materials such as foams, polyurea and the like. Towards this end, the gun () is designed so as to be easily serviceable with a minimum of tools. For example, the side seal cartridges () and () may be installed and removed without tools by removing the retaining ring () and then extracting them from the fluid housing (). Those cartridges () and () are easily disassembled and cleaned. Similarly, the fluid housing () may be removed from the handle/body () by unscrewing the lock ring () by hand.

Plural component spray gun for fast setting materials

A ball stop valve () allows liquid to enter a reciprocating piston pump when internal suction is great enough to raise the ball () and create a space between the ball () and a seat (). This invention allows the user to easily insert or remove rings () into the ball inlet valve, either above or below the ball (), so that the space between the ball () and the seat () can be adjusted. The valve () is easily accessible to the user and all components of the ball valve () are removable.

Reciprocating piston pump adjustable inlet ball travel

A device that eliminates the need for torque, usually applied by large tools, in the assembly or maintenance of pumps. This device connects the cylinder () and upper housing () of a pump using a simple locking pin () that inserts through the upper housing () of the pump and along the flat () on the pump cylinder (). The cylinder () inserts into the upper housing () until the holes () for the pin are () aligned. Upon alignment, the locking pin () is inserted through both components and locked, thus connecting them.

Pump cylinder lock

Plural component spray gun

Reciprocating piston pump

Growing community of inventors

Apple Valley, MN, United States of America

Michael J Sebion