An animal amusement device wherein a radio transmitter of limited range is carried by the animal. A ball, or other type of movable structure is to be located upon the ground or other supportive surface in close proximity to the animal. Upon the animal moving to within a short distance of the ball, the ball will become randomly movable by being activated by the radio signal mounted within the collar of the animal.

Disclosed herein is a device for controlling animal access to a location, comprising a generator for generating a field and a sensor for sensing the presence of the field near the location. One of the generator and the sensor is removably secured on an animal. A buzzer or other output signal unit is responsive to the sensor for generating an output signal in the presence of the field, the output signal being of sufficient magnitude to deter the animal from the location. Also disclosed is a technique for deterring an animal from a location.

A new automatic animal feeding system for automatically providing an animal with specific diet requirements an specific supply of food by preventing other animals from gaining access to the food which is intended for the animal with the specific diet requirement. The present invention allows the specified animal access to the food whenever the animal comes within a predetermined distance of the present invention. The inventive device includes a base member, a conical-shaped protective cover rotatably engaging the base member, a rotating means which rotates the conical-shaped protective cover, a feeding dish within the conical-shaped protective cover, and a power source electronically connected to the rotating means.

This access control device has at least one local control device (10) connected to a central control device (11) containing a local computer (18), an issuing station (12) for control cards and a lockable entry installation (13). At the issuing station (12) are issued portable control cards (47) with an electronic identity number is stored at each issue. A transmitting device 921) fitted at the entry installation (13) transmits a continuous series of signals corresponding to identity numbers recognized by the local computer (18) as valid. As soon as the comparator circuit finds a correspondence between transmitted and stored identity numbers, the transmission circuit of the control card is activated to send a release signal to open the entry installation, whereby the power to transmit the release signal is taken from the signals transmitted by the transmission device.

Pet owners in multi-pet households often find it difficult to ensure that each of their pets eats an dequate, but not excessive, amount of food each day. In addition, in those households where less than all of the pets are on a special diet, and/or where a number of the pets are on different special diets, pet owners must often resort to monitored feedings to ensure that each pet eats only the food which is intended for that pet. Monitored feedings are not only inconvenient and time consuming, they can often lead to behavioral problems in the pet, such as anorexia and competitive eating syndrome. The present invention addresses these problems by providing a pet feeding system which allows only the intended pet to have access to food stored in the dish intended for that pet, and prevents all pets in the household from eating food which is not intended for them.