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.

Date of Patent:
Apr. 24, 2018

Filed:

Oct. 05, 2015
Applicant:

Magna International Inc., Aurora, CA;

Inventors:

Steven Grgac, Mississauga, CA;

Bradford D. Armstrong, Barrie, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 65/00 (2006.01); B29C 65/34 (2006.01); B60R 13/00 (2006.01); B29L 31/30 (2006.01); B29K 309/08 (2006.01); B29K 105/06 (2006.01); B29K 101/12 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
B29C 66/73921 (2013.01); B29C 65/344 (2013.01); B29C 66/1248 (2013.01); B29C 66/12449 (2013.01); B29C 66/12463 (2013.01); B29C 66/12469 (2013.01); B29C 66/43 (2013.01); B29C 66/54 (2013.01); B29C 66/71 (2013.01); B29C 66/721 (2013.01); B60R 13/00 (2013.01); B29C 65/3476 (2013.01); B29C 66/7212 (2013.01); B29C 66/8322 (2013.01); B29K 2023/12 (2013.01); B29K 2101/12 (2013.01); B29K 2105/06 (2013.01); B29K 2309/08 (2013.01); B29L 2031/30 (2013.01); Y10T 428/19 (2015.01);
Abstract

A method for forming butt joints between thermoplastic members by resistive implant welding. A tongue is formed on one member to be joined and a complementary groove is formed in the other member. A resistive implant is placed between the tongue and the groove which are then pressed together by an applied pressure. An electric current is run through the resistive implant to melt a portion of the thermoplastic material of both the tongue and groove, and the melted plastic intermingles through the implant. When the electric current is removed, the plastic cools, forming a weld.


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