ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,940, issued on March 18, was assigned to TURBO DRILL INDUSTRIES INC. (Conroe, Texas).
"MWD isolation device" was invented by Chad Feddema (Conroe, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An isolator for use with a drill string comprises a low frequency portion and a high frequency portion coupled thereto. The low frequency portion comprises a low frequency mandrel and a low frequency housing that defines a chamber in conjunction therewith. The chamber may include a low frequency damping element disposed therein. The low frequency mandrel may be slidably received in the low frequency housing. The high frequency portion includes a high f...