Movable or removable closures – Mounted for optional movements – One closure movable separately from or with other closure
Patent
1995-12-18
1996-12-10
Kannan, Philip C.
Movable or removable closures
Mounted for optional movements
One closure movable separately from or with other closure
49366, 49371, 49386, E05D 1548
Patent
active
055819400
ABSTRACT:
The present invention relates to a two way animal door adapted to be installed in an existing door to allow two way travel of household pets. More specifically, the present invention pertains to a frame which is inserted into a rectangular aperture formed within an existing door. The frame carries a centrally located post which serves to divide the frame into two equal portions. Within the frame are position a first and a second door. The first door is openable only in one direction, while the second door is openable only the opposite direction. Each of the doors is mounted to the surrounding frame by way of adjustable spring biased hinges. The various components of the present invention and the manner in which they interrelate will be described in greater detail hereinafter.
REFERENCES:
patent: 2839791 (1958-06-01), Lee
patent: 3499246 (1970-03-01), Loukas
patent: 3978616 (1976-09-01), Pennock
patent: 4043079 (1977-08-01), Smith
patent: 4122630 (1978-10-01), Parisien
patent: 4177540 (1979-12-01), Gorton
patent: 4969292 (1990-11-01), Reid et al.
Kannan Philip C.
Peterson Randall R.
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