Movable or removable closures – Sequential closures for passageway
Patent
1997-04-02
1998-10-06
Redman, Jerry
Movable or removable closures
Sequential closures for passageway
49 93, 49 95, 160327, E06B 700
Patent
active
058159835
ABSTRACT:
A motor-vehicle gate assembly for a driveway includes, in addition to the gate and an actuator for opening and closing the gate, a secondary barrier operable in response to operation of the gate to prevent motor-vehicle access to the gate when the latter is closed and to permit access to the gate when the latter is open. The barrier may be a flexible line which extends across the driveway and which is movable between a raised position above the driveway and a lowered position in a gutter in the surface of the driveway. Movement of the barrier between its raised and lower positions can be effected by a mechanical connection between the barrier and the gate.
REFERENCES:
patent: 374772 (1887-12-01), Beshoar
patent: 1832812 (1931-11-01), Keenan
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