US Patent Issued to K.D.W. on Sept. 1 for "Double containment fittings with fusion coils" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,693, issued on Sept. 1, was assigned to K.D.W. Co. Ltd. (Hong Kong).

"Double containment fittings with fusion coils" was invented by Kwok Din Wong (Shenzhen City, China), Sai Hin Wong (Hong Kong) and Hang Yan Wong (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A double containment fitting for engagement with double containment pipes and comprising an outer cylinder, an inner cylinder and a plurality of ribs spacing the outer cylinder from the inner cylinder. The double containment fitting further includes heatable elements configured to have energy supplied thereto to heat the heatable elements to fuse the double containment fitting to th...