ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,799, issued on Sept. 30, was assigned to WEDGELOCK EQUIPMENT Ltd. (Upper Hutt, New Zealand).
"Locking device for a quick coupler" was invented by Michael Hugh James Rider (Te Horo Beach, New Zealand), Andrew James Phillip Rider (Te Horo Beach, New Zealand), David Aperahama Calvert (Lower Hutt, New Zealand), Matthew James Calvert (Wellington, New Zealand) and Andre Richard Anderson (Featherston, New Zealand).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wedge locking element (10) for a locking device of a quick coupler A for coupling the pin P2 of an attachment to earth working machinery. The wedge locking element (10) has a sloping wedge surface ...