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. 02, 2019
Filed:
Mar. 19, 2015
Applicant:
Graco Minnesota Inc., Minneapolis, MN (US);
Inventors:
Jonathan R. McMichael, Canton, OH (US);
Thomas V. Vo, Bedford, OH (US);
Assignee:
Graco Minnesota Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05B 12/00 (2018.01); B05B 1/32 (2006.01); B05B 12/08 (2006.01); B05B 12/14 (2006.01); F16K 1/00 (2006.01); G05D 7/06 (2006.01); B05B 7/24 (2006.01);
U.S. Cl.
CPC ...
B05B 12/008 (2013.01); B05B 1/32 (2013.01); B05B 7/24 (2013.01); B05B 12/006 (2013.01); B05B 12/087 (2013.01); B05B 12/1436 (2013.01); F16K 1/00 (2013.01); G05D 7/0688 (2013.01);
Abstract
A fluid dispensing system includes a pump, a valve, and a dispenser disposed downstream of the valve and connected to the valve with a hose. To provide a steady flow rate at the dispenser, the pump charges the fluid to or above the pressure required to achieve a desired flow rate. The valve cycles between open and closed at a fixed frequency. The valve-open time is varied within that frequency to maintain the desired flow rate.