Graco Minnesota Inc.

Joseph E Tix

Mark T Weinberger

Christopher J Pellin

Daniel P Ross

Jeffrey N Velgersdyk

Samuel R Stewart

Nicholas K Studt

Richard D Anderson

Mark J Brudevold

Douglas S Ryder

Justin J Weldon

Nicholas P Peterson

Paul R Quam

Andrew M Spiess

Stephen P Schneider

Jack A Bosak

Jacob R Whiteoak

Benjamin R Godding

Matthew R Theisen

Erich W Beckmann

Bryce J Gapinski

Matthew R Smith

James A Lingenfelter

Jeromy D Horning

Christopher M Lange

Martin P McCormick

John Russell Ingebrand

Kyle A Bottke

Kenneth C Floer

Roman S Kopylov

Arthur T Graf

Jeremy R Plough

John S Lihwa

Jacob T Elmer

Nicholas D Long

Banjamin R Godding

Gregory A Regenscheld

Mix chamber assembly

Mix chamber body

A fluid cartridge for a plural component sprayer is configured to receive first and second component materials and purge air from the sprayer and provide the first and second component materials and purge air to a mix chamber for spraying. The fluid cartridge includes a cartridge body, material flowpaths extending from a second end to a cartridge bore, and a purge path extending from the second end to the cartridge bore. Fluid checks are disposed in the material flowpaths and purge path to prevent backflow out of the fluid cartridge. Side seals are disposed in the material paths and are pre-loaded to extend into the cartridge bore and engage a mix chamber within the cartridge bore.

Fluid cartridge for a plural component sprayer

Chamber seal

Air cap

A mix chamber for a plural component sprayer is configured to receive first and second component materials and emit a spray of a resulting plural component material. The mix chamber includes a chamber body extending between a first end and a second end and including flat lateral sides. A ramp feature is disposed proximate the first end and is configured to contact and push first and second side seals, respectively, away from a body axis as the mix chamber shifts in a first direction through a cartridge bore to increase a gap between the first side seal and the second side seal such that the first side seal engages the first flat lateral side and the second side seal engages the second flat lateral side.

Mix chamber for a plural component sprayer

A plural component dispensing system includes a first heated hose, a second heated hose, a controller, and a dispensing device. The first heated hose and the second heated hose include electrical wires that supply heat to the first and second heated hoses to heat fluid components within the first and second heated hoses. The first and second heated hoses are electrically coupled to the controller and are fluidly coupled to the dispensing device. The controller is configured to control and alternate the electrical power supplied to the first heated hose and the second heated hose to heat the first heated hose independent of the second heated hose.

Independent heated hose

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 fast-set, plural component, spray applicator () includes a stationary mix chamber () to eliminate dynamic metal-to-metal high pressure fluid sealing. The stationary mix chamber () mixes the plural components before dispensing the mixed components from the spray applicator (). The spray applicator includes fluid needles () configured to engage and disengage seals to perform the fluid valving. Needles () control both fluid and air flow to the stationary mix chamber ().

Spray applicator with a stationary mix chamber

An electrical connector system for use with independently heated hoses includes a first electrical connector, a second electrical connector, a third electrical connector, and a fourth electrical connector. The first electrical connector includes a first key that mates with a second key of the second electrical connector. The third electrical connector includes a third key that mates with a fourth key of the fourth electrical connector. The first and second keys differ from the third and fourth keys, ensuring the electrical connectors are correctly connected.

Heated hose electrical connectors

Control needle

Component mixing chamber

Growing community of inventors

Hastings, MN, United States of America

Joseph E Tix