Terrorist vehicle barrier
First Claim
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1. A vehicle barrier comprising:
- a pair of spaced upright supports positionable in the path of a vehicle,at least one pair of opposed shock absorbers having telescoping inner and outer portions, one of said pair attached to one of said supports, the other of said pair attached to the other said support, each said shock absorber mounted in a first aperture in one of said supports, one said portion fixed to said support, the other said portion free to reciprocate in said one portion, andcable means connecting said at least one pair of shock absorbers, said cable means passing through a second aperture in said support adjacent said shock absorber, attaching to said reciprocating portion of said shock absorber, and passing through a third aperture in said support adjacent said shock absorber and opposite said second aperture to join itself to provide a loop around said shock absorber and around a portion of said support.
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Abstract
A terrorist vehicle barrier is disclosed having high strength cables stretched between two vertical I-beams. The cables are attached to the I-beams in a unique shock absorbing arrangement. The barrier is actuatable from a position below ground to effectively arrest the motion of a high speed terrorist vehicle. Various means are disclosed for actuating the gate. The barrier is designed to solve esthetic problems encountered in making a building secure from terrorist attack as well as to be strong enough to stop a high speed vehicle with minimum damage to the barrier, the vehicle, or the vehicle driver.
68 Citations
11 Claims
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1. A vehicle barrier comprising:
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a pair of spaced upright supports positionable in the path of a vehicle, at least one pair of opposed shock absorbers having telescoping inner and outer portions, one of said pair attached to one of said supports, the other of said pair attached to the other said support, each said shock absorber mounted in a first aperture in one of said supports, one said portion fixed to said support, the other said portion free to reciprocate in said one portion, and cable means connecting said at least one pair of shock absorbers, said cable means passing through a second aperture in said support adjacent said shock absorber, attaching to said reciprocating portion of said shock absorber, and passing through a third aperture in said support adjacent said shock absorber and opposite said second aperture to join itself to provide a loop around said shock absorber and around a portion of said support. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A terrorist vehicle barrier comprising:
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a pair of spaced vertical I-beams mounted for reciprocation in guide channels, said guide channels located below ground in a concrete pit; at least one pair of expansible chamber type shock absorbers having telescoping inner and outer halves, one of said pair attached to one of said I-beams, the other of said pair attached to said other I-beam, each said shock absorber mounted in a first aperture in said I-beam, one of each of said telescoping halves fixed to said I-beams in said first aperture, the other half free to reciprocate; cable means connecting shock absorbers of each said pair, said cable means passed through a second aperture adjacent said first aperture in said I-beam, attached to said inner reciprocating other half of said shock absorber and passed back through said I-beam through a third aperture adjacent said first aperture opposite said second aperture and joined to itself to form a loop around said shock absorber and a loop around a portion of said I-beam; and means for raising said barrier to its use position. - View Dependent Claims (11)
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Specification