US Patent Issued to LIFTRA IP on Feb. 10 for "Extension yoke for self-hoisting crane, a self-hoisting wind turbine crane with an extension yoke, and use of an extension yoke" (Danish Inventor)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,555, issued on Feb. 10, was assigned to LIFTRA IP APS (Aalborg, Denmark).

"Extension yoke for self-hoisting crane, a self-hoisting wind turbine crane with an extension yoke, and use of an extension yoke" was invented by Per Eske Fenger (Terndrup, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "An extension yoke, a self-hoisting wind turbine crane with such a yoke, and a method of using such a yoke are disclosed. The yoke comprises a frame structure comprising a lifting portion and a load transfer portion, forming an obtuse angle with each other, and at least one crane attachment element positioned between the load transfer portion and the lif...