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. 25, 1978
Filed:
Apr. 21, 1977
Applicant:
Inventors:
David Emmert Stover, Dubuque, IA (US);
Alvin Lewis Menzel, Dubuque, IA (US);
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
64 2 / ;
Abstract
A tree harvesting machine has delimbing knives which are fixed to arms having hubs fixed, by means of a shear pin assembly, to a rock shaft. The shear pin assembly includes a pair of headed pins which are inserted into opposite ends of first and second axially aligned bores respectively extending diametrically through the hub and shaft. A pair of retaining clips are secured to the hub by and are respectively urged against the pin heads by a pair of cap screws. The pins are dimensioned such that their respective inner ends are spaced from each other when the pins are installed.