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:
Feb. 04, 1986
Filed:
Oct. 22, 1984
Donald E Westemeier, Dubuque, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A track link assembly in which an outer link end has an annular recess opening towards an inner link end and which further has a track bushing on the connecting pin or link extending through the inner link and fixed thereto. The bushing has an end facing the recess with an annular groove in that end. A comparatively hard seal ring is positioned in the recess and has an annular end portion conforming in shape and seated in the annular groove and extending radially and inwardly from that end to an opposite end that has a pair of annular lips, one of which engages a radial wall surface of the recess and the other of which engages the surface of the pin. The hard seal ring is provided with a comparatively resilient load ring that maintains seating between the lips and their respective surfaces and the one end of the hard seal ring and the annular groove.