Patent ID: 8595976
Filing Date: 2013-12-03
Classification: E06B

Abstract:
1. An automatic pet door system comprising: (a) a substantially rectangular frame disposed over an opening in a hinged door, wherein a lower portion of the frame defines a passage through the opening; (b) a pet door moveable between a lower closed position for closing the passage and an upper open position for opening the passage; (c) a drive means lifting the pet door between the closed and open positions; (d) a magnetic transmitter worn by a pet, the magnetic transmitter generating a predetermined transmitter signal; (e) a detector located proximate the frame, the detector generating a detector signal in response to the transmitter signal when the pet approaches the pet door at a predetermined distance from the pet door; (f) a control means engaging the drive means to lift the pet door between the closed and open positions in response to the detector signal; (e) a microelectromechanical systems gyro disposed on the hinged door, the microelectromechanical systems gyro generating a gyro signal in response to a movement of the hinged door, the gyro signal overriding the detector signal, thus preventing lifting the pet door between the closed and open positions.