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:
Jul. 29, 1997
Filed:
Oct. 11, 1995
Mark J Wegner, Watertown, WI (US);
Ransomes America Corporation, Lincoln, NE (US);
Abstract
A mechanical system for a controlling a reversible pump in a walk-behind turf care machine having a hydrostatic drive and operator speed and traction controls. The pump includes a rotatable trunion shaft connected to the traction control for controlling hydrostatic pump displacement and direction. A rotatable lever structure fits over the trunion shaft and includes a rotary sleeve, an arm and roller. A control bracket, including a V-shaped contact portion having opposed surfaces for engaging the roller, is operatively connected to the speed and traction controls and to the turf machine frame about a pivot point. Operator manipulation of the control bracket via the speed and traction controls causes a rotatable engagement between the control bracket and the roller, which in turn sets the maximum forward/reverse speeds and direction of the hydrostatic drive. When the traction control is neutral, a spring arrangement is provided for urging of the hydrostatic pump into its neutral position. An improved operator station is also provided.