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. 02, 2013
Filed:
Nov. 05, 2009
Edward C. Hughes, Iv, Fort Wayne, IN (US);
Christopher Alan Williamson, West Lafayette, IN (US);
Joshua D. Zimmerman, Lafayette, IN (US);
Monika Marianne Ivantysynova, Lafayette, IN (US);
Edward C. Hughes, IV, Fort Wayne, IN (US);
Christopher Alan Williamson, West Lafayette, IN (US);
Joshua D. Zimmerman, Lafayette, IN (US);
Monika Marianne Ivantysynova, Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
A system and method for performing a floating function in an earthmoving implement of an earthmoving machine without physically connecting chambers within a hydraulic actuator that is adapted to raise and lower the earthmoving implement. The system includes a device for delivering a pressurized fluid to and receiving pressurized fluid from the actuator, a valve for compensating for differences in volume between chambers of the actuator, and an electronic control circuit that includes electronic sensors for sensing the pressures in the chambers of the actuator, and a controller for receiving outputs of the sensors. The controller calculates an amount of the pressurized fluid that, when delivered to or received from the actuator, achieves a substantially constant pressures in the chambers of the actuator and enables the earthmoving implement to float regardless of motion of the actuator.