ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,897, issued on May 27, was assigned to Datwyler Parco Holdings Inc. (Wilmington, Del.).
"Sucker rod stripper" was invented by Derek Steve Ingraham (Beasley, Texas), Shawn Neal Adair (Forney, Texas) and Mayowa Kolawole Mosuro (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sucker rod stripper (1) comprising a housing (2) defining an axial rod passageway (21) therethrough for a sucker rod of an oil well pump, two rubber packings (3, 3'), which are diametrically arranged around the rod passageway (21), each provided with an axial sucker rod groove (31) for stripping the sucker rod, and two radially extending feed screws (4, 4') each extending...