US Patent 12082559 Automatic animal door

An automatic animal door includes a first door column, a second door column, a top plate, a door plate, and a driving mechanism. The first door column defines a first groove The second door column defines a second groove. The top plate is connected with a top end of the first door column and a top end the second door column. The top plate defines an entrance with the first door column and the second door column. The door plate is disposed between the first door column and the second door column. The door plate is movable along the first groove and the second groove to close or expose the entrance. The driving mechanism is disposed on the top plate. The driving mechanism is connected with the door plate to drive the door plate to move along the first groove and the second groove.