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:
Aug. 29, 2017
Filed:
Apr. 18, 2012
George Kadlicko, Rockford, IL (US);
John Gregorio, Chana, IL (US);
Tobin Gimber, Loves Park, IL (US);
Jeffrey Maney, Rockford, IL (US);
George Kadlicko, Rockford, IL (US);
John Gregorio, Chana, IL (US);
Tobin Gimber, Loves Park, IL (US);
Jeffrey Maney, Rockford, IL (US);
Concentric Rockford Inc., Rockford, IL (US);
Abstract
A hydraulic drive system for an actuator uses a pair of pressure compensated hydraulic machines to control flow to and from the drive chambers of the actuator. The capacity of one of the machines is limited in a motoring mode to determine a maximum rate of efflux from one of the chambers. The pressure of fluid supplied to the other of said chambers is maintained at a predetermined level to provide motive force. The machines are mechanically coupled to permit energy recovery and charge an accumulator to store surplus energy.