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:
Jul. 01, 2025

Filed:

Oct. 06, 2023
Applicant:

Holcim Technology Ltd, Zug, CH;

Inventors:

Mitchell L. Gilbert, Hemlock, MI (US);

Crint A. LaBrosse, Bay City, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 65/32 (2006.01); B29C 65/00 (2006.01); B29C 65/02 (2006.01);
U.S. Cl.
CPC ...
B29C 65/32 (2013.01); B29C 65/022 (2013.01); B29C 66/112 (2013.01); B29C 66/7392 (2013.01);
Abstract

A method of joining overlapping thermoplastic membrane components in which a first thermoplastic membrane component and a second thermoplastic membrane component are positioned in overlapping relationship between a pair of complementary molding surfaces, with at least one of the complementary molding surfaces being defined by an electrically conductive metal susceptor. Heat is generated in the metal susceptor and transferred by thermal conduction from the metal susceptor to overlapping portions of the first and second thermoplastic membrane components to locally melt and coalesce at least a portion of the thermoplastic material of the first thermoplastic membrane component and at least a portion of the thermoplastic material of the second thermoplastic membrane component. The molten thermoplastic material of the first and second thermoplastic membrane components forms a zone of coalesced thermoplastic material that, upon cooling, forms a solid weld joint that fusion welds the first and second thermoplastic membrane components together.


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