Turntable barrier system
First Claim
1. A turntable barrier system for use with a roadway for controlling passage of a vehicle, comprising:
- a turntable having a top surface generally coplanar with the roadway and rotatably movable about a vertical axis, such that said top surface of said turnable is rotated in a plane substantially parallel to a plane of the roadway;
an array of impact elements disposed on the turntable and extending from the top surface of the turntable;
a power operated drive system that is actuatable to rotate the turntablethe turntable being rotatable between a first position where the array of impact elements are configured to prevent passage of a vehicle and a second position where the row of impact elements are configured to permit passage of the vehicle.
2 Assignments
0 Petitions
Accused Products
Abstract
A barrier system for use with a trafficable surface that penetrates a boundary to control access by vehicles and to permit uncontrolled access by pedestrians. The system includes a turntable providing a surface that is rotatable generally in the plane of the trafficable surface. Impact elements are arranged along the surface in a pattern having a spacing configured to permit passage by pedestrians and to prevent passage of vehicles when the turntable is in a first position and to permit passage of vehicles when the turntable is rotated to a second position. The system controls vehicle traffic across the boundary by moving the turntable between the first position and the second position.
37 Citations
27 Claims
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1. A turntable barrier system for use with a roadway for controlling passage of a vehicle, comprising:
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a turntable having a top surface generally coplanar with the roadway and rotatably movable about a vertical axis, such that said top surface of said turnable is rotated in a plane substantially parallel to a plane of the roadway; an array of impact elements disposed on the turntable and extending from the top surface of the turntable; a power operated drive system that is actuatable to rotate the turntable the turntable being rotatable between a first position where the array of impact elements are configured to prevent passage of a vehicle and a second position where the row of impact elements are configured to permit passage of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A barrier system for use with a trafficable surface that penetrates a boundary to control access by vehicles and to permit uncontrolled access by pedestrians, the system comprising:
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a turntable providing a top surface that is rotatable generally in a plane of the trafficable surface; a series of impact elements arranged along the surface in a pattern having a spacing configured to permit passage by pedestrians and to prevent passage of vehicles when the turntable is in a first position and to permit passage of pedestrians and vehicles when the turntable is rotated to a second position; so that a drive system for rotating said turntable vehicle traffic across the boundary can be controlled by moving the turntable between the first position and the second position. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification