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:
Jul. 07, 2020
Filed:
Sep. 18, 2018
Applicant:
Uchiyama Manufacturing Corp., Okayama-shi, Okayama, JP;
Inventors:
Assignee:
UCHIYAMA MANUFACTURING CORP., Okayama-Shi, Okayama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 43/52 (2006.01); B65D 39/00 (2006.01); B29C 43/00 (2006.01); B29C 35/08 (2006.01); B29C 43/02 (2006.01); B27N 7/00 (2006.01); B27K 7/00 (2006.01); B27N 5/00 (2006.01); B29K 103/00 (2006.01);
U.S. Cl.
CPC ...
B29C 43/52 (2013.01); B27K 7/00 (2013.01); B27N 5/00 (2013.01); B27N 7/00 (2013.01); B29C 35/0805 (2013.01); B29C 43/003 (2013.01); B29C 43/027 (2013.01); B65D 39/0058 (2013.01); B29C 2035/0855 (2013.01); B29C 2043/029 (2013.01); B29K 2103/00 (2013.01); B65D 39/0011 (2013.01);
Abstract
An objective of the present invention is to provide a method for producing a cork stopper by compression molding cork grains, which can provide a cork stopper excellent in sealability and safety. There is provided a method for producing a cork stopper, comprising: mixing cork grains and an adhesive; compression molding the mixture to give an intermediate; and then heating the intermediate to expand the cork grains.