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:
Jan. 17, 1995
Filed:
Dec. 22, 1992
Applicant:
Inventor:
Allen J Hiler, Shelby, OH (US);
Assignee:
Atlas Bolt & Screw Company, Ashland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23G / ;
U.S. Cl.
CPC ...
470-9 ; 409211 ;
Abstract
A self-drilling and tapping screw, the self-drilling portion of which is formed in two major operations. A cutting tip is formed on the tip of a screw blank by a pair of rotating circular saw blades in a first operation. A pair of flutes extending from the cutting tip to the threaded portion of the stem are formed by a second pair of rotating circular saw blades in a second operation.