US Patent Issued to DOWNHOLE PRODUCTS on April 29 for "Slimline stop collar with seal to prevent micro-annulus leakage" (British, American Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,845, issued on April 29, was assigned to DOWNHOLE PRODUCTS Ltd..

"Slimline stop collar with seal to prevent micro-annulus leakage" was invented by Douglas Farley (Missouri City, Texas) and Darko Arsoski (Angus, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A stop collar for mounting to a downhole tubular includes: a cylindrical housing having a threaded inner surface and a tapered inner surface; a compressible slip ring having teeth formed in an inner surface thereof and a pair of tapered outer surfaces; a cam ring having a tapered inner surface; a seal receivable in the housing; a cylindrical bolt having a threaded outer surface. A na...