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:
Mar. 02, 2004
Filed:
Jul. 01, 2002
Applicant:
Inventor:
David A. Doerflinger, Racine, WI (US);
Assignee:
Textron Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01D 7/530 ;
U.S. Cl.
CPC ...
A01D 7/530 ;
Abstract
A lawnmower with a tractor and a gang of mowers pivotally supported by the tractor for up and down motion when moving on the ground is provided. A mower support arm is pivoted on the tractor and has a pivot axis for each of the mowers, and a camming action is created by the up and down mower movement and that causes the pivot axis to move horizontally relative to the tractor to thereby avoid having the mowers move horizontally, and it maintains a constant spacing between the mowers and avoids having the mowers collide when moving up and down. Shorter length mowers can thus be used in the gang, thereby following the ground contour more closely.