US Patent Issued to HOWMET AEROSPACE on July 1 for "Resistance welding fastener, apparatus and methods" (Pennsylvania Inventors)

ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,988, issued on July 1, was assigned to HOWMET AEROSPACE INC. (Pittsburgh).

"Resistance welding fastener, apparatus and methods" was invented by Donald J. Spinella (Greensburg, Pa.) and Daniel Bergstrom (Sarver, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and method for fastening dissimilar materials like steel, plastic and aluminum. A resistance welding fastener having multiple layers may be used with or without a sealant. The fastener may be used to form an aluminum covered steel laminate via a hemming pattern of attachment. The fastener may have a solid shaft or have an extended reach and have features for interacting with the w...