US Patent Issued to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN on Nov. 25 for "Method for manufacturing an airtight layer used in the composition of a tire" (French Inventors)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,240, issued on Nov. 25, was assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN (Clermont-Ferrand, France).

"Method for manufacturing an airtight layer used in the composition of a tire" was invented by Frederic Pialot (Clermont-Ferrand, France) and Jose Merino Lopez (Clermont-Ferrand, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a composite airtight layer (20) used in the composition of a tire (30) comprises: a film (21) made of thermoplastic material is heated such that the film is able to plastically deform; the film is deformed (120) with the aid of corrugating means, the thickness of the film (21) bein...