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:
Oct. 15, 1991
Filed:
May. 11, 1990
Applicant:
Inventors:
Paul C Sprunger, Dundee, OR (US);
Terry L Briscoe, Portland, OR (US);
Assignee:
ESCO Corporation, Portland, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
37115 ; 37135 ; 3714 / ; 172719 ; 172751 ; 172753 ; 403319 ; 403331 ; 403381 ;
Abstract
A locked connection for structures engageable with abrasive material and the like including a pair of relatively elongated elements at least one of which is subject to abrasive wear, the elements having parallel longitudinally extending centerlines and spaced apart generally planar surfaces arranged at an angle to the centerlines and between which a bi-stress lock is positioned.