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:
Dec. 28, 2010
Filed:
Jun. 26, 2006
Applicant:
Joseph L. Pfaff, Wauwatosa, WI (US);
Inventor:
Joseph L. Pfaff, Wauwatosa, WI (US);
Assignee:
INCOVA Technologies, Inc., Waukesha, WI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16K 51/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for operating an electrohydraulic valve initially derives a characterization value that denotes how magnetic hysteresis affects valve operation. Upon receiving a command that designates a desired magnitude of electric current to be applied to the electrohydraulic valve, that command is modified based on the characterization value to compensate for the magnetic hysteresis. The modified command then is employed to apply electric current to the electrohydraulic valve.
Pfaff, Joseph. (2010). Electrohydraulic valve control circuit with magnetic hysteresis compensation (U.S. Patent No. 7857281). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7857281
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile