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:
Jul. 10, 2012
Filed:
Jan. 28, 2008
Robert Ford, Troy, MI (US);
Shawn Haley, Lake Orion, MI (US);
Mark Woloszyk, Sterling Heights, MI (US);
John Manfreda, Sterling Heights, MI (US);
Robert Ford, Troy, MI (US);
Shawn Haley, Lake Orion, MI (US);
Mark Woloszyk, Sterling Heights, MI (US);
John Manfreda, Sterling Heights, MI (US);
Innovative Design Solutions, Troy, MI (US);
Abstract
A controller commands a jack drive to extend and retract a jack leg relative to a jack base along a stroke having retraction and extension limits. The controller updates a perceived present leg position value in response to position change signals from a position change sensor. The controller occasionally applies compensation factors to the perceived present leg position value in the extension direction. The controller resets the perceived present leg position value whenever the jack leg reaches the retraction limit.