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. 22, 1979
Filed:
Jul. 18, 1977
Willard O Kaarlela, Chillicothe, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
A ripper tip is detachably mounted on a wedge-shaped nose of a shank by an elongated retention apparatus. The retention apparatus comprises a resilient, expandible retainer defining a cavity therein, a lock pin partially disposed within the cavity and an elastomeric slug disposed in the cavity between the retainer and lock pin urging the retainer into bearing contact with the shank and the lock pin into bearing contact with the tip. The retainer is of U-shape section having bottom and side walls which are expanded by the slug to fill an opening formed by a wall through the shank, and also includes flanges at the upper ends of the side walls which do not expand within the opening, yet contact such shank wall.