Graco Minnesota Inc.

Andrew M Spiess

Joseph E Tix

Mark T Weinberger

Christopher J Pellin

Daniel P Ross

Joshua D Roden

Paul R Quam

Nicholas K Studt

Matthew R Theisen

Nicholas P Peterson

Bryce J Gapinski

Brian R Hendrickson

Roman S Kopylov

Matthew R Smith

John S Lihwa

James A Lingenfelter

A pump system includes a housing, a lubricant system, and control circuitry. The housing includes a pump chamber defined by the housing and a throat seal. The lubricant system includes a lubricant pump, a lubricant gallery defined within the housing of the main pump, and a lubricant circuit fluidly connecting the lubricant pump and the lubricant gallery. The throat seal is disposed adjacent to and between the pump chamber and the lubricant gallery. The control circuitry is configured to cause the lubricant pump to pump a purge volume of lubricant through the lubricant system, cause the lubricant pump to stop pumping for a first time period after the lubricant pump has pumped the purge volume, and cause the lubricant pump to pump the purge volume of lubricant through the lubricant system after the first time period.

Lubrication and flushing of a fluid seal used with reactive materials

A pour spout adapter comprises a housing, a collar and a threaded engagement. The housing has a sealed bore for receiving a tube. The collar has an internal bore coupled to the housing at a rotatable connection so as to permit a tube to extend from the sealed bore through the collar. The threaded engagement is disposed on the internal bore to receive a threaded pour spout.

Pour spout adapter assembly for pumping system

Protective coatings sprayer

Adhesive melter

Portable plural component proportioner

Growing community of inventors

Forest Lake, MN, United States of America

Andrew M Spiess