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US 2006/0140715 A1Published application
Vehicle arresting device
AssigneeQinetiq Limited
InventorsChristopher Lyddon, Adrian Woodhouse, Julian Moody
Life of this patent
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AssigneeQinetiq Limited
InventorsChristopher Lyddon, Adrian Woodhouse, Julian Moody
Estimating the term…
A vehicle arresting device comprises a net intended to be laid flat on the ground in the path of an oncoming vehicle to be arrested. Two rows of barbed spikes are attached to the net along its leading edge. When a vehicle runs over the device the spikes lodge in its front tyres and the net is caused to wrap around the front wheels, eventually being pulled tight under the vehicle so that the tension in the net prevents further rotation of the wheels and the vehicle is brought to a stop. The net is manufactured such that in its deployed condition it has sufficient lateral stretch to allow it to become fully wrapped around the front wheels before the tension builds up to a level at which there might otherwise be a risk of the spikes being pulled from the tyres.
A vehicle arresting device comprising a net adapted to be laid flat on the ground in the path of a vehicle to be arrested with one or more transverse rows of upwardly-directed spikes attached to the net at a leading portion thereof, the loops of said net being oriented with a longer dimension in the fore and aft direction than in the transverse direction, whereby in use any widthwise portion of the net is capable of substantial transverse elongation.
A method of constructing a vehicle arresting device comprising a net adapted to be laid on the ground in the path of a vehicle to be arrested with one or more rows of upwardly-directed spikes attached to the net at a leading portion thereof, the method comprising:
A method according to claim 22 which comprises threading one or more said elongate elements through loops of the net between said side edges but more positively attaching such element(s) to the net at said side edges.
A method according to claim 22 which comprises holding one or more said elongate elements to the net between said side edges by virtue of separable hook and loop material but more positively attaching such element(s) to the net at said side edges.
A spike assembly for use in a vehicle arresting device comprising a base portion whereby the spike can be stood in an upwardly-directed orientation, a shaft portion extending from said base portion and a generally pyramidal barb portion at the tip of said shaft portion.
Dependencies are inferred from the claim text.