ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,772, issued on July 15, was assigned to Linamar Corp. (Guelph, Canada).
"Corrugations for inflation against rigid shape" was invented by Caroline Collins (Sunnyvale, Calif.) and Brian Schlotterbeck (San Francisco).
According to the abstract* released by the U.S. Patent & Trademark Office: "A corrugation is provided in a polymeric liner configured for inflation against a rigid shape. The polymeric liner has a cylindrical wall with opposing inner and outer surfaces. The liner includes a first liner section having a plurality of annular corrugations. Each of the corrugations has a curved mountain region with a ridge, a curved valley between adjacent spaced apart mountain regions, an...