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:
Jan. 23, 2001
Filed:
Dec. 10, 1998
Michael A. Betz, Huxley, IA (US);
Sauer Inc., Ames, IA (US);
Abstract
A hydrostatic transmission includes a hollow one-piece cast housing having an internal compartment and an outer shell with opposite sides and opposite ends; a central wall in the housing dividing the compartment into separate sub-compartments and being integrally cast with the housing; first and second hydrostatic power units mounted one each in the sub-compartments on opposite sides of the central wall; and high pressure fluid conduits extending through the central wall and hydraulically connecting the hydrostatic power units. The hydrostatic power units can include a pump and a motor, each having respective rotating groups which are easily insertable into the respective sub-compartments through access openings in the housing. Although the main shafts of the pump and motor are capable of rotating in different directions from each other and at different speeds, the shafts have axes of rotation which are coincidental to each other.