ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,554, issued on March 24, was assigned to LTS Energy Inc. (Houston).
"Under-balanced seal ring" was invented by Kevin S. Leaning (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A piping system for oil and gas in very deep water includes two opposing flanges and a seal ring between the flanges. Each flange has an annular ridge between concentric grooves. The seal ring has a radial web that connects longitudinal inner and outer sealing portions, which are received in the concentric grooves with the annular ridge received sealingly between the inner and outer sealing portions. The inner sealing portion of the seal ring is longer than the outer ...