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:
May. 16, 1989
Filed:
Dec. 31, 1987
Applicant:
Inventor:
George V Shutt, Glendora, CA (US);
Assignee:
Aspen Laboratories, Inc., Greenwood Village, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ; A61B / ;
U.S. Cl.
CPC ...
1283051 ; 128310 ; 408225 ; 408230 ; 408207 ;
Abstract
A drill includes a plurality of lips with enlarged portions at one end defining heads therefore. The heads form frusto-conical surfaces and cutting edges extend from the frusto-conical surfaces to remove chips. The cutting edges are limited in size with respect to the frusto-conical surfaces to control the removal of chips and a pocket behind each head readily receives the shavings to convey the latter away from the one end.