Radio Systems Corporation

Thomas P Bjorholm

James R Bosserdet, Jr

Andrew S Grimmett

Lane Whiteside

George M Smart, Iv

Jr James R Bosserdet

Described is an animal door that is movable between a closed position and an open position and that has an adjustable resistance against the door being removed from the closed position to the open position. More specifically, the animal door defines a passageway and includes a flap that is moveable between the closed position and the open position, whereby the flap obstructs the passageway when at the closed position. The animal door generates a magnetic force that generates a resistance against the flap being moved from the closed position to the open position, whereby magnitude of the magnetic force, and thus the resistance, is adjustable.

Animal door having an adjustable resistance against being opened

Described is an electronic pet door for automatically granting a selected animal access to a through-way defined by the electronic pet door and denying a non-selected animal access to the through-way. The selected animal carries a transmitter. The electronic pet door includes a corresponding receiver and a frame that defines the through-way, which has a tapered contour. A flap, which has a tapered contour corresponding to the through-way, is disposed within the through-way and is capable of a locked position and an unlocked position. When in the locked position, the flap denies access to the through-way. When unlocked, the flap grants an animal access to the through-way. The flap is locked and unlocked by way of a locking mechanism that shifts the flap longitudinally between the less tapered and most tapered portions of the through-way. The locking mechanism shifts the flap in response to the receiver.

Selective access electronics pet door

Selective access electronic pet door

Growing community of inventors

Knoxville, TN, United States of America

Thomas P Bjorholm