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. 03, 1987
Filed:
Nov. 21, 1985
Applicant:
Inventors:
Robert W Jorgensen, Niles, MI (US);
Thomas E Lewis, South Bend, IN (US);
Gregory J Kesler, South Bend, IN (US);
Assignee:
Harvey Hubbell Incorporated, Orange, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ; B65D / ;
U.S. Cl.
CPC ...
220266 ;
Abstract
A knockout structure is provided for selectively forming openings for either one of two different sizes of conduit. The center of the inner knockout is offset from the center of the outer knockout, creating an eccentric relationship which permits a positive ground to be established between the smaller conduit and the box wall by a standard lock washer when the smaller conduit is mounted therein. A secure mechanical connection is similarly established.