Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1998-01-20
1999-11-30
Lisehora, James A.
Road structure, process, or apparatus
Traffic steering device or barrier
49 9, 49 34, 49131, E01F 1304
Patent
active
059931043
ABSTRACT:
There is disclosed a transportable device and associated method for impeding the motion of a land vehicle travelling along a pathway on a terrain surface. First and second supports are positioned at first and second sides of the pathway, respectively, each capable of being actuated from a compressed condition to an extended condition. A propulsion system is effective to actuate the supports. A barrier extends between the supports at a mean first height that is effective to permit passage of a vehicle when the supports are compressed and supported by each support at a mean second height effective to impede passage of the vehicle when the supports are extended. When the supports are compressed, vehicles pass over the barrier unimpeded. When the supports are extended, the barrier impedes the motion of a vehicle travelling along the pathway. At least one deceleration cable mechanically couples the barrier to a brake system.
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Edmonds David A.
Hoskins Randel L.
Marcotullio John P.
Lisehora James A.
Primex Technologies Inc.
Rosenblatt Gregory S.
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