US Patent Issued to ZF FRIEDRICHSHAFEN, ZF WIND POWER ANTWERPEN, VESTAS WIND SYSTEMS on April 15 for "Insulated pitch tube" (German Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,276,255, issued on April 15, was assigned to ZF FRIEDRICHSHAFEN AG (Friedrichshafen, Germany), ZF WIND POWER ANTWERPEN N.V. (Lommel, Belgium) and VESTAS WIND SYSTEMS A/S (Aarhus N, Denmark).

"Insulated pitch tube" was invented by Dirk Strasser (Breckerfeld, Germany), Dietmar Weist (Dortmund, Germany), Deyan Stoyanov (Bochum, Germany) and Ralf Sperlich (Witten, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An arrangement includes a transmission, a pitch tube, and a fixation device configured to affix the pitch tube in the transmission. The fixation device is electrically insulated from the pitch tube. The pitch tube can be axially movable relativ...