ALEXANDRIA, Va., March 31 -- United States Patent no. 12,588,579, issued on March 31, was assigned to Walterscheid GmbH (Lohmar, Germany).
"Universal joint shaft" was invented by Jesse Hastings (Davis, Ill.), Chris Evers (Dresden, Germany) and Falk Hantschack (Dresden, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A universal joint shaft can be provided for transmitting torque between a power take-off shaft of a driving agricultural machine and a drive journal of an agricultural implement to be driven. The universal joint shaft comprisesa first joint with a first inner joint member and a first outer joint member, which are pivotably and torque-transmittingly connected to each other, a second joint, ...