A freeze-resistant watering device has a nipple or ball valve, a heat pipe, a sleeve in tight thermal contact with the nipple, a water-tight connection to a liquid containing container or supply pipe, and an outer shield enclosing an insulating space or insulation material. This device thermally couples a watering nipple or ball valve to a container or supply pipe via a thermal conduction path including bends so the nipple or ball valve maintains a temperature near that of the liquid in the container or supply pipe, and also provides a means for thawing the watering device with heat from the liquid in the container or supply pipe. The use of one or more freeze-resistant watering devices with a thermally insulated container in a watering unit with an insulated container or supply pipe provides drinking water to animals, and in particular, birds in sub-freezing and in hot weather.

A liquid dispenser may include a container having an upper opening, a pump provided in the container, a pipe through which liquid discharged from the pump is transferred, a top plate having an upper surface over which liquid flows, a filter assembly provided below the top plate, a base provided below the container, and a thermoelectric element provided in the base to cool the liquid in the container.

A pet service structure includes a housing including a floor, upstanding sidewalls, a ceiling, and water piping connectable to a water source. A pet fountain is disposed outside of the housing. The pet fountain includes a frame coupled to one of the sidewalls, a bowl coupled to the frame and disposed near a ground level, a water spout connected to the water piping and directed towards the bowl, and a valve configured to open and close the water spout.

A freeze-resistant watering device has a nipple or ball valve, a heat pipe, a sleeve in tight thermal contact with the nipple, a water-tight connection to a liquid containing container or supply pipe, and an outer shield enclosing an insulating space or insulation material. This device thermally couples a watering nipple or ball valve to a container or supply pipe via a thermal conduction path including bends so that the nipple or ball valve maintains at a temperature that is near the temperature of the liquid in the container or supply pipe. Further, the use of one or more freeze-resistant watering devices with a thermally insulated container in a watering unit with an insulated container or supply pipe provides drinking water to animals, and in particular, birds in sub-freezing and in hot weather.

An automatic animal watering assembly includes a base that has a bowl section therein and a receiver section. A container is removably inserted into the receiver section of the base. The container contains water and the container releases the water into the bowl section. The container has an opening extending through a top end of the container for filling the container. A plug is movably positioned within the container. The plug is positionable in a closed position and an open position. A lid is hingedly coupled to the top end of the container. A lever is pivotally coupled to the container and the plug rests on the lever. The lever lifts the plug when the lever is lifted and the lever lowers the plug when the lever is lowered. The lever is in mechanical communication with the lid such that the lid lowers and lifts the lever.

An automatic self-cleaning and self-filling outdoor fluid feeding system for an animal, including for example a pet, includes a sink; a fluid transport system; a housing supporting the sink and containing the fluid transport system; and a control assembly configured to control the automatic self-cleaning and self-filling operations of the system.

An automatic pet feeder with cooler has a compartmentalized serving tray and a thermoelectric cooling peltier device with a condensation collector. The tray rotates inside an insulated enclosure with an opening just sufficient to expose food from one of the compartments on the tray for household pets. The wet pet food in remaining enclosed compartments is kept at a cold temperature, similar to a refrigerator, thereby preventing bacterial spoilage of pet food over a longer time periods. Since the thermoelectric cooling peltier device surface cools down below ambient temperature, condensation forms on it and drips down into the condensation collector where it is channeled to away where it can evaporate. Using an included user interface, a human user of the device can enter the times when the serving tray should rotate such as to expose one of the various enclosed food compartments on the serving tray for a household pet. This exposed compartment allows a pet to eat from this automatic pet feeder without requiring presence of a human user at the time the pet needs to be fed wet food.

A base for pet feeder and a pet feeder for eating or drinking of pets are provided. The base includes a main body portion and a plurality of adjusting mechanisms. The main body portion includes a first side and a second side, the second side is disposed opposite to the first side, and the first side is configured to contain food or water. The plurality of the adjusting mechanisms are disposed at the second side of the main body portion at intervals, each of the plurality of the adjusting mechanisms is capable of providing at least three heights. Each of the plurality of the adjusting mechanisms includes a first supporting plate and a second supporting plate. The first supporting plate includes a first part and a second part, the first part is rotatably connected to the second side.

A liquid dispenser may include a container having an upper opening, a pump provided in the container, a pipe through which liquid discharged from the pump is transferred, a top plate having an upper surface over which liquid flows, a filter assembly provided below the top plate, a base provided below the container, and a thermoelectric element provided in the base to cool the liquid in the container.

A portable submersible livestock water quality dispensing device and design for a livestock drinking station is provided. The portable submersible livestock water quality dispensing device has a heating element and a variable pressure pump with internal compartments or inserts for accommodating biocides, minerals, vitamins and medicaments and preferably a rotatable circulation device and method for their controlled release and dosing.