ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,555, issued on Nov. 11, was assigned to DANFOSS A/S (Nordborg, Denmark).
"Check valve damping" was invented by Michael Birkelund (Nordborg, Denmark).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a check valve unit (1, 100, 200, 300, 400) having a shaft bearing body (10, 110, 210, 310, 410) with an at least substantially cylindrical mounting portion (11) extending along an axial direction (A) and an axially extending valve shaft (20, 120) mounted therein. The latter is displaceable along the axial direction (A). The check valve unit (1, 100, 200, 300, 400) further includes a valve head (25, 125) with a sealing surface...