US Patent Issued to VESTAS AIRCOIL on Aug. 4 for "Leak testing apparatus" (Danish Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,021, issued on Aug. 4, was assigned to VESTAS AIRCOIL A/S (Lem St., Denmark).

"Leak testing apparatus" was invented by Frank Nielsen (Engesvang, Denmark) and Claus Hessler Ibsen (Skjern, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "A leak testing apparatus is provided, for testing connections between tubes penetrating a plate material. A housing is disclosed having a central cylindrical longitudinal hollow. A piston arranged inside housing, where a distal end of the piston in use is inserted into the tube. A seal arranged circumferentially on the piston, such that in use the second seal may be brought into sealing engagement with the tube. ...