ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,862, issued on July 28, was assigned to Halliburton Energy Services Inc. (Houston).
"Stationary plunger packing" was invented by Michael Foss (Haslet, Texas) and Timothy Holiman Hunter (Wichita Falls, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A reciprocating pump system includes a fluid end that includes plungers configured to be reciprocated within respective bores in a body. Dynamic packings in each of the bores are configured to be energized into dynamic sealing engagement around respective plungers against pressure from a pressure side. Dynamic packing nuts are engageable with atmospheric sides of respective dynamic packings opposite ...