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:
Oct. 20, 1998
Filed:
Mar. 20, 1997
Garry W Busboom, Beatrice, NE (US);
ExMark Mfg. Co., Inc., Beatrice, NE (US);
Abstract
An apparatus is provided for quickly adjusting a dual hydraulically powered, wheel-steered lawn mower to achieve straight line travel when steered to the straight ahead position. Right and left hydraulic pump controls interconnect the speed control of the mower to right and left hydraulic pumps which are fluidly connected to right and left hydraulic motors which drive right and left drive wheels on the mower. The left hydraulic pump control is length adjustable and is maintained in a set position by a pair of jam nuts. The right hydraulic pump control also includes a length adjustable rod, but the same is length adjustable through the use of an adjustment knob which may be quickly adjusted while the mower is moving. The output of the right hydraulic pump may be adjusted by means of the right hydraulic pump control so that the output of the right hydraulic pump may be varied with respect to the left hydraulic pump so that the mower will move ahead in a straight line manner.