ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,323, issued on April 15, was assigned to OURAD SAFETY Co. LTD. (Tainan, Taiwan).
"Device for connecting lens and earmuff to safety helmet" was invented by Pin-Tsung Huang (Tainan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for connecting a lens and an earmuff to a safety helmet is disclosed. The device includes a retaining frame, two pivot members and two connecting units. The retaining frame includes a pivot portion on either side thereof and an engaging block on the pivot portion. The pivot members are pivotally connected to the pivot portions, respectively. The pivot member has a slide portion having a first groove. The first p...