The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 1993
Filed:
Aug. 23, 1991
Henry E Solowiej, Alta Loma, CA (US);
Other;
Abstract
An automatic pet door apparatus includes a frame having a parallel-spaced pair of rigidly connected columns for mounting vertically oriented between wall studs, a lower portion of the frame defining a doorway passage between opposite sides of the walls; a door vertically movable in the frame between closed and open positions; a driver supported by the frame and coupled to the door for lifting the door from the closed position to the open position in response to a motor signal; a radiation transmitter for wearing by the pet and operable for producing a predetermined transmitter signal; a transducer located proximate the frame for producing a transducer signal in response to the transmitter signal when the pet approaches the frame from one side of the wall; and a controller responsive to the transmitter signal for activating the motor signal, whereby the door is raised by the driver, the door opening by sliding within the wall.