US Patent 7874265 Restricted access animal feeder utilizing physical means of restriction

The present invention is a novel device having two primary components. The first component is a specialized collar and the second component is a feeder. The specialized collar has a pendant from which an activation magnet hangs. The feeder has a magnetic sensor which is placed in a location so as to sense the magnet from the collar. The feeder is in the open condition except when an animal wearing a specific magnet approaches a feeder, an activation mechanism causes a restriction mechanism to be placed over the food access so that the animal wearing the collar cannot have access to the food. When the animal goes away from the feeder, the restriction is removed so that other animals who do not have the collar will have access to the food.