Graco Minnesota Inc.

Q.e.d. Environmental Systems, Inc.

Daniel P Ross

Joseph E Tix

Mark T Weinberger

Samuel R Stewart

Jack A Bosak

Jacob R Whiteoak

Christopher J Pellin

Jeffrey N Velgersdyk

Paul R Quam

Nicholas K Studt

Benjamin R Godding

Mark J Brudevold

Bryce J Gapinski

James A Lingenfelter

John F Schaupp

Greg T Mrozek

Matthew R Theisen

Andrew M Spiess

Steven R Wells

John S Lihwa

Banjamin R Godding

Nicholas D Long

Joseph Lawrence Schaffer

Brett M Crouse

Steven Richard Wells

Component mixing chamber

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

The present disclosure relates to a fluid pump which has a pump casing, a top cap securable to an upper end of the pump casing and having an air intake port and a fluid discharge port. A fluid discharge tube extends to adjacent a lower end of the pump casing. A one-way check valve is disposed adjacent the lower end of the pump and forms a one-way path to admit fluid into the pump casing during a fill cycle of operation of the pump. A one-way check valve at the discharge port allows fluid to escape during a discharge cycle. An auger element is disposed inside the pump casing for causing a swirling, rotational fluid flow during a fluid eject cycle, in response to a jet of compressed air released into the pump casing, in which fluid having collected within the pump casing is forced by the jet of compressed air into and up through the discharge tube, and out from the pump casing.

Pneumatic fluid pump with dual rotational swirling cleaning action

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

Fluid cartridge

Fluid head retainer

Growing community of inventors

Maplewood, MN, United States of America

Daniel P Ross