US Patent Issued to PUMPKIN on Nov. 3 for "Contact force adjustment apparatus for contact bar capable of adjusting height of dog" (South Korean Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,780,004, issued on Nov. 3, was assigned to PUMPKIN Co. LTD. (Namyangju-si, South Korea).

"Contact force adjustment apparatus for contact bar capable of adjusting height of dog" was invented by Yong Gil Choi (Namyangju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided relates to a contact force adjustment apparatus for a contact bar, which includes a height adjustment unit that varies a height of a dog detected by a photosensor, a tension checking unit capable of easily checking a change in tension for a spring, and a contact force adjustment unit including a dog protruding upward a support bar to rotate the support bar; a nut dispos...