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:
Mar. 10, 2015
Filed:
Oct. 31, 2007
Applicants:
Michael Tholan Crosby, Jonesborough, TN (US);
Billie Frances Burleigh, Birmingham, AL (US);
Brian Timothy Painter, Chuckey, TN (US);
Inventors:
Michael Tholan Crosby, Jonesborough, TN (US);
Billie Frances Burleigh, Birmingham, AL (US);
Brian Timothy Painter, Chuckey, TN (US);
Assignee:
Parker-Hannifin Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 53/10 (2006.01); F04B 1/20 (2006.01);
U.S. Cl.
CPC ...
F04B 1/2064 (2013.01); F04B 1/2021 (2013.01);
Abstract
A pump having an endplate with an orifice provided between the system ports and the charge pump pressure cavity. Fluid flows through the orifice so as to soften a transition of the vehicle from a stationary position to a forward or reverse motion when a swash plate of the pump is angled slightly relative to a neutral or zero position.