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:
Apr. 15, 1986
Filed:
Jun. 18, 1984
James H Kress, Cedar Falls, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A hydrostatic transaxle assembly having first and second output shafts extending outward therefrom. The assembly includes a housing enclosing a portion of the first and second output shafts and forming a generally cylindrical chamber therein. A manifold is positioned around one of the output shafts and has an outer surface which mates with an inner surface of the housing. A pair of high torque, low speed motors are secured to an inner surface of the housing on opposite sides of the manifold. One of the motors is splined to the first shaft while the other motor is splined to the second shaft. Operation of the motors cause the respective shafts to rotate. The motors operate on pressurized fluid which is supplied through fluid passages. A control valve is positioned across the fluid passages to regulate the operation thereof. The assembly further includes means for axially retaining and hydraulically balancing the motors against the sides of the manifold such that hydraulic forces acting on one of the motors will be transferred to and offset by a similar force acting on an opposite surface of the second motor.