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:
Sep. 01, 1992
Filed:
Jul. 26, 1991
Applicant:
Inventor:
Robert K Kopras, Black Earth, WI (US);
Assignee:
Roto Zip Tool Corporation, Cross Plains, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23C / ;
U.S. Cl.
CPC ...
408 26 ; 144219 ; 407 54 ; 407 63 ; 408230 ;
Abstract
Disclosed is a bit which can be cut both axially and laterally, and which is especially useful to cut an access opening in a sheetrock panel covering an electrical outlet box. The bit self-guides itself laterally around the periphery of the outlet box so that the opening will correspond to the shape of the box. The configuration of the bit permits it to be made in an unusually small diameter so as to minimize the width of the slot it cuts.