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. 21, 1986
Filed:
Mar. 02, 1983
Applicant:
Inventor:
Henry A Sygnator, Arlington Heights, IL (US);
Assignee:
Illinois Tool Works Inc., Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23G / ;
U.S. Cl.
CPC ...
409131 ; 10 1 / ; 10 205 ; 409192 ; 409198 ; 409213 ;
Abstract
A method and apparatus for milling drill points in screw blanks. Form relieved milling cutters are rotated at unusually high speeds to produce high performance screws at improved rates of production. The cutters can be adjusted in a simple manner to achieve variations in drill point geometry, and the speed of the cutters can be controlled to carefully maintain the quality of the products and maximize the life of the cutters.