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:
Oct. 03, 1978
Filed:
Nov. 29, 1976
Applicant:
Inventor:
John V Fredd, Dallas, TX (US);
Assignee:
Otis Engineering Corporation, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23G / ; B26D / ;
U.S. Cl.
CPC ...
1010 / ; 407 66 ; 407120 ;
Abstract
A thread chaser tool with cutting edge defined by two symetrical points. The tip radii of the two points are spaced apart slightly less than the pitch of a thread to be cut. The thread form is generated by the inside flanks of each point and a crestforming radius there between. Both points cooperate in forming the long flanks of either male or female tapered threads, and both points form straight threads having two roots.