ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,370, issued on Jan. 28.
"Prefabricated precompressed deck joint systems" was invented by Mathew Chirappuram Royce (Fredericksburg, Va.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This invention is the concept and method of designing, fabricating in a factory environment and installing Deck Joint Systems (DJS) consisting of Ultra High Performance Concrete (UHPC) joint headers sandwiching the joint sealer and pre compressing the sealer using a plurality methods for applying compression. The deterioration of bridges due to the exposure to chlorides, most commonly from leaking joints, has been established as the biggest challenge for bridge owners in...