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:
Mar. 17, 2020
Filed:
Jan. 19, 2018
Applicant:
Graco Minnesota Inc., Minneapolis, MN (US);
Inventors:
James M. Dalton, Maple Grove, MN (US);
Brian M. Mulgrew, St. Francis, MN (US);
Assignee:
Graco Minnesota Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05B 7/12 (2006.01); B05B 7/00 (2006.01); F16K 15/02 (2006.01); F16K 27/02 (2006.01); B05B 1/30 (2006.01); B05B 7/24 (2006.01); B05B 7/04 (2006.01); B05B 12/00 (2018.01);
U.S. Cl.
CPC ...
B05B 7/1281 (2013.01); B05B 1/3006 (2013.01); B05B 7/0081 (2013.01); B05B 7/0416 (2013.01); B05B 7/2416 (2013.01); B05B 12/002 (2013.01); B05B 12/008 (2013.01); F16K 15/026 (2013.01); F16K 27/0209 (2013.01); B05B 7/2437 (2013.01);
Abstract
A high-volume low-pressure spray system includes a hose disposed between a compressor and a spray gun. The hose acts as an accumulator when the spray gun is deactivated. A check valve is disposed in a fitting connecting the hose to the compressor. The check valve includes a spring that applies a nonlinear force to a downstream end of a valve member, such that the valve member tips open in response to the pressure differential, providing a variable flowpath opening through the check valve.