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. 14, 2012
Filed:
Feb. 24, 2009
Gerald Dyck, Abbotsford, CA;
John Czepak, Burnaby, CA;
Francesco Michele Caldarella, Lynden, WA (US);
Dayao Alex Chen, Surrey, CA;
Stig Ingemar Bratt, Trollhattan, SE;
Gerald Dyck, Abbotsford, CA;
John Czepak, Burnaby, CA;
Francesco Michele Caldarella, Lynden, WA (US);
Dayao Alex Chen, Surrey, CA;
Stig Ingemar Bratt, Trollhattan, SE;
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A hydrostatic assembly includes a pump having a yoke and an associated rotating group. The pump yoke has a bucket portion and an arm portion. At least one fluid passage extends through the pump yoke. The hydrostatic assembly also includes a motor having a yoke and an associated rotating group. The motor yoke also has a bucket portion and an arm portion. At least one fluid passage extends through the motor yoke. The arm portion of the pump yoke and the arm portion of the motor yoke have associated coupling portions for fluidly coupling the pump yoke to the motor yoke so that the at least one fluid passage in the pump yoke is in direct fluid communication with the at least one fluid passage in the motor yoke.