US Patent Issued to DOWNHOLE PRODUCTS on May 20 for "Centralizer having internal stop collar" (American, British Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,452, issued on May 20, was assigned to DOWNHOLE PRODUCTS Ltd..

"Centralizer having internal stop collar" was invented by Darko Arsoski (Angus, Great Britain), Douglas Brian Farley (Missouri City, Texas) and Shenal Mekson (Antioch, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A centralizer for mounting onto a downhole tubular incudes a cylindrical body. The body has: a plurality of blades forming a periphery thereof, a first portion with an inner surface, and a second portion having a groove formed in an inner surface thereof for receiving a stop collar. The stop collar includes: a compressible slip ring having teeth formed in an inner surface...