Movable or removable closures – Mounted for optional movements – One closure movable separately from or with other closure
Patent
1982-08-12
1984-11-06
Downey, Kenneth
Movable or removable closures
Mounted for optional movements
One closure movable separately from or with other closure
49478, 49480, E06B 732
Patent
active
044804075
ABSTRACT:
A pet door comprises a frame hingedly supporting a flap undersized relative to the opening therefor in the frame; the resulting gaps therebetween are weatherproofed by sealing means in part constituted by co-extensive plastics magnet strips on confronting edges of the flap and frame. One magnet strip at least is mounted for movement in a direction across the gap into and out of face-to-face sealing contact with the other magnet strip, respectively as the flap enters and leaves its closed position; the movement is responsible for jam-free closing and opening.
REFERENCES:
patent: 2860700 (1958-11-01), Horton
patent: 3248159 (1966-04-01), Hall
patent: 3362108 (1968-01-01), Jones
patent: 4047331 (1977-09-01), Davlantes
Blenkinsop Philip T.
Needham Robert J.
Downey Kenneth
Manning, Jr,. Wellington M.
Wilburn, Jr. Luke J.
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