US Patent Issued on July 8 for "Apparatus and method for extracting a seized yaw piston from a wind turbine housing" (Illinois Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,772, issued on July 8.

"Apparatus and method for extracting a seized yaw piston from a wind turbine housing" was invented by Chad Badertscher (Ransom, Ill.), Zachary Chervinko (Ransom, Ill.) and David Feltman (Ransom, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device and method for removing a seized yaw piston from a wind turbine housing is disclosed. The device features a boring plug with retention screws to secure the piston during operation and mounting plates for attaching the boring motor. The boring motor operates a cutter to remove the piston's core. The rotary motor is manually rotated allowing the cutting wheel to create a separat...