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, 1976
Filed:
Jul. 09, 1974
Harold Keith Garrison, Newton, KS (US);
Cecil L Case, Newton, KS (US);
Allen A White, Peabody, KS (US);
Hesston Corporation, Hesston, KS (US);
Abstract
A sickle drive has a sway bar that is coupled with the sickle to reciprocate the latter during oscillation of the sway bar. The latter is operably coupled with a crank drive through a special linkage employing a pair of oppositely extending, short pitman links that compensate for one another adjacent opposite ends of the sickle stroke to vary the velocity of the sickle substantially sinusoidally. The oppositely directed inertia forces of the sickle adjacent opposite ends of its stroke, made equal by the special linkage, are balanced out by a pair of superimposed, oppositely rotating weights driven in timed relationship to reciprocation of the sickle, thereby presenting a substantially vibration-free drive.