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.:

US 6386954 B1

PDF
Full Text
Expired
Date of Patent:
May. 14, 2002

Filed:

Mar. 09, 2001
Applicant:
Inventors:

Teruo Sawabe, Miyagi, JP;

Isao Yokoyama, Saitama, JP;

Kazutoshi Sato, Miyagi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B 1/00 ; B23B 5/100 ; B21J 1/302 ;
U.S. Cl.
CPC ...
B24B 1/00 ; B23B 5/100 ; B21J 1/302 ;
Abstract

It is an object of the invention to provide a thread-forming tap to which a chamfer can easily be mounted, and a general threading method. The thread forming tap of the invention has a threaded portion comprising a tapered chamfer and a parallel threaded portion which is formed continuously with the chamfer. A depth of root of the chamfer is set equal to that of a root of the parallel threaded portion constantly.


Find Patent Forward Citations

Sawabe, Teruo. (2002). Thread forming tap and threading method (U.S. Patent No. 6386954). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6386954

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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