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:
Jun. 26, 2012
Filed:
Nov. 12, 2010
Kazuhiko Mori, Aichi-ken, JP;
Makoto Yamaguchi, Aichi-ken, JP;
Kazuhiko Mori, Aichi-ken, JP;
Makoto Yamaguchi, Aichi-ken, JP;
NGK Spark Plug Co., Ltd., , JP;
Abstract
A process of manufacturing the spark plug that includes a step in which a receiving die having an insertion hole and a taper portion is used, wherein a thread portion of the spark plug is inserted into the insertion hole and a seat portion of the spark plug is brought into contact with the taper portion, and a pressing force is applied to a rear end portion of a metallic shell of the spark plug so as to bend a rear end opening portion of the metallic shell, and to thereby form a crimped portion, whereby an insulator and the metallic shell are fixed together.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile