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:
Aug. 25, 2020
Filed:
Sep. 23, 2015
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Hirokazu Kurono, Nagoya, JP;
Hironori Uegaki, Nagoya, JP;
Toshitaka Honda, Nagoya, JP;
Hiroyuki Hazama, Nagoya, JP;
Kuniharu Tanaka, Nagoya, JP;
Hiroyuki Kawaji, Nagoya, JP;
NGK Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Abstract
An employed rear mold is comprised of a plurality of mold pieces. The plurality of mold pieces include a first mold piece which forms a first partial internal surface of the internal surface of the rear mold along the entire circumference of the internal surface, and a second mold piece which is located axially forward of the first mold piece and forms a second partial internal surface of the internal surface of the rear mold along the entire circumference of the internal surface. Releasing the molded body includes starting to move the first mold piece rearward in relation to a rear molded portion, and, subsequently to starting to move the first mold piece, starting to move the second mold piece rearward in relation to the rear molded portion, thereby disassembling the rear mold into the plurality of mold pieces.