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. 02, 1993
Filed:
Jan. 23, 1991
Applicant:
Inventor:
Mark A Bordwell, Memphis, TN (US);
Assignee:
Thomas & Betts Corporation, Bridgewater, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
174 / ; 220-32 ; 220268 ;
Abstract
A circular inner knockout and a non-circular outer knockout formed in a wall are individually connected to the wall by frangible webs located opposite from one another. The frangible web connecting the inner knockout to the wall is stronger than the frangible web connecting the outer knockout to the wall. The periphery of the outer knockout includes by a plurality of interconnected discrete circular curved portions, and does not completely surround the inner knockout.