US Patent Issued to HUSQVARNA on July 28 for "Control of feed of trimmer line" (Swedish Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,513, issued on July 28, was assigned to HUSQVARNA AB (Huskvarna, Sweden).

"Control of feed of trimmer line" was invented by Stefan Kullberg (Jonkoping, Sweden), Daniel Alexandersson (Huskvarna, Sweden) and Joakim Grundberg (Huskvarna, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A trimmer head includes a rotatable housing connectable to a trimmer line spool rotatably supported by the housing and a locking mechanism for locking the trimmer line spool to the housing with a locking force. The locking mechanism is arranged to be moved from a locked to an unlocked position when a rotation speed of the trimmer head is increased above an operating...