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:
May. 25, 2010
Filed:
Mar. 14, 2006
Robert Martin Faith, Bellevue, IA (US);
Steven Jay Ditzler, Bellevue, IA (US);
Robert Martin Faith, Bellevue, IA (US);
Steven Jay Ditzler, Bellevue, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A pin has a shank with a spherical lead-in portion at the free end thereof. The spherical lead-in portion has a diameter that is equal to or slightly less than the diameter of a cylindrical portion of the pin. The purpose of the spherical lead-in portion is to allow a greater portion of the pin to enter a matching hole before further alignment of the centerlines of the pin and the hole is required. This makes aligning the centerlines significantly easier and reduces wear on the structure defining the matching hole. A relief portion following the spherical lead-in portion as well as a chamfer following the relief portion aid in the final alignment.