The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2021
Filed:
Sep. 23, 2020
Applicant:
Graco Minnesota Inc., Minneapolis, MN (US);
Inventors:
Diane L. Olson, Elk River, MN (US);
Christopher C. Hines, Andover, MN (US);
Robert W. Kinne, Columbia Heights, MN (US);
Assignee:
Graco Minnesota Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 53/16 (2006.01); F04B 53/14 (2006.01); F04B 7/04 (2006.01); F04B 17/03 (2006.01); B05B 9/08 (2006.01);
U.S. Cl.
CPC ...
F04B 17/03 (2013.01); B05B 9/0861 (2013.01); F04B 7/04 (2013.01); F04B 53/14 (2013.01); F04B 53/16 (2013.01);
Abstract
A pump draws fluid from a reservoir and drives the fluid downstream to a spray tip where the fluid is applied to a surface. The pump includes a polymer pump body and a metallic piston configured to reciprocate relative to and within the polymer pump body. The metallic piston interfaces with an inner cylinder formed within the polymer pump body and pumps fluid through the polymer pump body to a spray nozzle downstream of the inner cylinder.