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:
May. 05, 2020
Filed:
Oct. 10, 2017
Applicant:
Hydraforce, Inc., Lincolnshire, IL (US);
Inventors:
Travis Schmidt, Oregon City, OR (US);
Scott Parker, Victoria, MN (US);
Joel Mekkes, Traverse City, MI (US);
Assignee:
HydraForce, Inc., Lincolnshire, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 13/07 (2006.01); F16H 61/4043 (2010.01); F16H 61/456 (2010.01); F16H 61/4008 (2010.01); F15B 11/16 (2006.01); F15B 13/02 (2006.01); F16K 11/07 (2006.01); F16K 17/04 (2006.01);
U.S. Cl.
CPC ...
F15B 13/07 (2013.01); F15B 11/16 (2013.01); F15B 13/024 (2013.01); F16H 61/4008 (2013.01); F16H 61/4043 (2013.01); F16H 61/456 (2013.01); F16K 11/0716 (2013.01); F15B 13/021 (2013.01); F15B 2211/41581 (2013.01); F15B 2211/526 (2013.01); F15B 2211/7058 (2013.01); F15B 2211/7121 (2013.01); F16K 17/0406 (2013.01);
Abstract
A hydraulic control valve maintains the pressure at a control port at a desired percentage of the pressure at two other ports as the pressure at the two other ports varies. Upon the pressure at the control port reaching a predetermined pressure setting, a fourth port will open to maintain the control port at a second desired percentage of the two other ports.