ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,376, issued on Nov. 25, was assigned to FORUM US INC. (Houston).
"Washpipe assembly" was invented by Stephen Patterson (Westhill, Great Britain), Sohaib Anwer (Houston) and Blake E. Smith (College Station, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A washpipe assembly is configured to form a fluid tight seal between a rotating and non-rotating component. The washpipe assembly has a washpipe, a static seal assembly coupled to one end of the washpipe, and a dynamic seal assembly coupled to an opposite end of the washpipe. The dynamic seal has a seal disposed within an outer housing. The seal is contained within a seal cavity formed by the ou...