ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,706, issued on April 22, was assigned to DANFOSS A/S (Nordborg, Denmark).
"Floating ring seal for refrigerant compressor" was invented by Mihai B. Dobrica (Albigny-sur-Saone, France) and Tianlei Li (Tallahassee, Fla.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a floating ring seal having a nose configured to contact a housing. Further, a low friction coating including carbon nanotubes (CNTs) is applied to one or both of the nose and the housing. In another aspect of this disclosure, the floating ring seal has first and second noses con...