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. 01, 1988
Filed:
Oct. 24, 1985
Applicant:
Inventor:
Frederick C Hahn, Aloha, OR (US);
Assignee:
Esco Corporation, Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
3714 / ; 411508 ;
Abstract
A locking device for an excavating tooth, where the tooth has vertically aligned openings for the receipt of the locking device, which includes a relatively elongated pin having a reduced diameter central cylindrical portion and a basket spring mounted and substantially surrounding the cylindrical portion to provide a ball and socket-like connection between the lock and the tooth.