US Patent 7762211 Pet feeding and watering apparatus

The pet feeding and watering apparatus provides pet food and water in the same cabinet. The apparatus provides constant temperature control of the chilled water, with auto recirculation and filtration, thereby preventing algae and bacterial growth. The vertical guide float assembly ensures correct water level within the water reservoir. The adjustable thermostat senses water warmth and initiates operation of the switched valve and the chiller with pump. The apparatus also provides a fingertip controlled feeding assembly. The feeding assembly is removable by a human but not by a pet, which is a key factor, as many pets are playfully destructive of such items.