US Patent Issued to Halliburton Energy Services on Jan. 27 for "Safety valve harnessing weight and gravity for fail-safe closure" (Singaporean Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,146, issued on Jan. 27, was assigned to Halliburton Energy Services Inc. (Houston).

"Safety valve harnessing weight and gravity for fail-safe closure" was invented by Mohan Gunasekaran (Singapore) and Nithin Kumar Gupta Dachepally (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "A safety valve includes a rotatable helical slot cylinder having a body and a throughbore running axially through the body. The helical slot cylinder additionally has an upper helical slot and a lower helical slot slotted in the body of the helical slot cylinder and the helices of the upper helical slot and the lower helical slot are the inverse of each other. The u...