Movable or removable closures – Mounted for optional movements – One closure movable separately from or with other closure
Patent
1998-10-19
1999-11-30
Stodola, Daniel P.
Movable or removable closures
Mounted for optional movements
One closure movable separately from or with other closure
160180, E05D 1548
Patent
active
059920963
ABSTRACT:
A controllable animal access system connectable to the door of a building which has an opening covered by a pivotally moveable animal door. The animal access system has a motion detector associated with a reader which detects an encoded pet tag worn by a selected animal and actuates locking and unlocking mechanisms in response to reading an accepted code. Various other controls are provided for operation of the apparatus.
REFERENCES:
patent: 4022263 (1977-05-01), Beckett et al.
patent: 4497133 (1985-02-01), Blenkinsop
patent: 4991350 (1991-02-01), Kirk
patent: 5196826 (1993-03-01), Whiting
De La Cerda Paul
Smith Brian R.
Hart Frank L.
Pooch Pass, Inc.
Stodola Daniel P.
Thompson Hugh B.
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