ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,949, issued on March 11.
"Wind turbine tower elevator" was invented by Donald Hollis Gehring (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wind turbine tower elevator includes a first tower rail, a second tower rail, an elevator, a first jacking system, a second jacking system, a first locking system, and a second locking system. The elevator includes a main platform and jack housing. The first tower rail and the second tower rail are mounted parallel to a wind turbine tower and positioned offset to each other. The main platform is connected onto the jack housing and facilitates the transportation of blades and nacelle. The first jackin...