ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,950, issued on July 29, was assigned to THINK AND VISION GMBH (Leoben, Austria).
"Impact device for a drill string" was invented by Medardus Ramsauer (Kuchl, Austria) and Anton Kotov (Samara, Russia).
According to the abstract* released by the U.S. Patent & Trademark Office: "An impact device for a drill string has a pipe with a variable length and a longitudinal extension, which has a first pipe element and a second pipe element that can be moved in the direction of the longitudinal extension relative to the first pipe element, which second pipe element is accommodated in the first pipe element. An electrical line runs from the first pipe element to the second pipe element, whic...