ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,915, issued on Feb. 25, was assigned to FUMEX AB (Skelleftea, Sweden).
"Damper adjusting arrangement" was invented by Gustav Stenberg (Skelleftea, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A damper adjusting arrangement configured for regulating the flow of a gaseous fluid within a channel of an extractor tubing. The damper adjusting arrangement includes a damper member pivotably arranged in the channel and coupled to a rotary control means of the damper adjusting arrangement. A first member of the rotary control means includes a resilient element, which exhibits a plurality of radially protruding first bulges being configured for engage...