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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 12023837 B1

PDFFull Text
Date of Patent:
Jul. 02, 2024

Filed:

Sep. 02, 2021

Molding apparatus

Applicant:

Ykk Corporation, Tokyo, JP;

Inventors:

Yoshiyuki Fukuhara, Toyama, JP;

Yuji Takada, Toyama, JP;

Assignee:

YKK Corporation, Tokyo, JP;

Attorney:

Kilpatrick Townsend & Stockton LLP

Primary Examiner:

Atul P Khare

Int. Cl.
CPC ...
B29C 48/00 (2019.01); A44B 18/00 (2006.01); A61F 13/62 (2006.01); B29C 39/14 (2006.01); B29C 43/22 (2006.01); B29C 43/46 (2006.01); B29C 69/02 (2006.01); B29C 43/52 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 48/0011 (2019.02); A44B 18/0007 (2013.01); A44B 18/0015 (2013.01); A44B 18/0019 (2013.01); A44B 18/0049 (2013.01); A44B 18/0061 (2013.01); A44B 18/0065 (2013.01); A44B 18/0073 (2013.01); A61F 13/625 (2013.01); B29C 39/148 (2013.01); B29C 43/222 (2013.01); B29C 43/46 (2013.01); B29C 69/02 (2013.01); B29C 2043/461 (2013.01); B29C 43/52 (2013.01); B29L 2031/727 (2013.01);
Abstract

This manufacturing method of a molded surface fastener involves a primary molding step for forming a primary molded body and a secondary molding step for compressing a provisional element of the primary molded body while heating the same. A molding apparatus is provided with a mold member comprising multiple penetration holes and multiple concave portions, whereof each penetration hole communicates to at least one concave portion; in the primary molding step, the molding apparatus is used to form a primary molded body comprising a provisional element having a primary stem portion and a pawl portion is formed from the protruded portion by compressing the provisional element. By this means, it is possible to stably manufacture a molded surface fastener that has an engaging element comprising a pawl portion that projects from the outer peripheral edge of an engaging head portion.

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