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:
Oct. 03, 2017
Filed:
Jan. 07, 2013
Parker-hannifin Corporation, Cleveland, OH (US);
Germano Franzoni, Prarie View, IL (US);
Jarmo Harsia, Chicago, IL (US);
Roger Lowman, Simpsonville, SC (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A method of controlling a float function of a cylinderhaving a first side and a second side includes connecting the second side of the cylinder to a reservoir; connecting the first side of the cylinder to an output of a pumpand to the reservoir; and supplying an amount of flow from a pump less than an amount supplied by the pump under loaded conditions. A three-position directional control valvehaving a pump port, a reservoir port, a first cylinder port, and a second cylinder port may be provided to effectuate aspects of this method.