Image Number 5 for United States Patent #4780932.
Electrical stunning apparatus for beef cattle or other livestock uses head restraining means to hold the animal's head in place during contact by electrodes. The animal's head is prevented from moving upwardly by a pusher which contacts the top of its head or neck, while a chin lifter moves in from below the animal's head to hold it in place. An electrode on the chin lifter contacts the animal's nose allowing a stunning current to pass through the animal's head to another electrode on the pusher (for head stunning). If deep stunning is required an additional electrode may be moved into contact with the rear of the animal to apply a heart-stopping current.