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:
Dec. 04, 1990
Filed:
Nov. 09, 1989
Applicant:
Inventor:
Robert F Sharpe, Petersburg, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
408238 ; 279 / ; 408710 ;
Abstract
An apparatus for drilling into energized utility components without having to first de-energize them so as to allow continuous service to consumers is provided. The apparatus includes a drive shaft constructed of an insulating material terminating in a drill chuck and drill bit. The drive shaft is supported by an adjacent rod using pillar block bearing assemblies which allow the uninhibited rotation of the drive shaft. This attachment can be powered by a variety of power units.