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Title: Retractable barrier strip

A portable barrier strip having retractable tire-puncture means for puncturing a vehicle tire. The tire-puncture means, such as spikes, have an armed position for puncturing a tire and a retracted position for not puncturing a tire. The strip comprises a plurality of barrier blocks having the tire-puncture means removably disposed in a shaft that is rotatably disposed in each barrier block. The shaft removably and pivotally interconnects the plurality of barrier blocks. Actuation cables cause the shaft to rotate the tire-puncture means to the armed position for puncturing a vehicle tire and to the retracted position for not puncturing the tire. Each tire-puncture means is received in a hollow-bed portion of its respective barrier block when in the retracted position. The barrier strip rests stable in its deployed position and substantially motionless as a tire rolls thereon and over. The strip is rolled up for retrieval, portability, and storage purposes, and extended and unrolled in its deployed position for use.
 [1];  [1];  [1]
  1. (Idaho Falls, ID)
Issue Date:
OSTI Identifier:
Lockheed Idaho Technologies Company (Idaho Falls, ID) INEEL
Patent Number(s):
US 5507588
Contract Number:
Research Org:
Country of Publication:
United States
retractable; barrier; strip; portable; tire-puncture; means; puncturing; vehicle; tire; spikes; armed; position; retracted; comprises; plurality; blocks; removably; disposed; shaft; rotatably; block; pivotally; interconnects; actuation; cables; rotate; received; hollow-bed; portion; respective; stable; deployed; substantially; motionless; rolls; thereon; rolled; retrieval; portability; storage; purposes; extended; unrolled; rotatably disposed; tire-puncture means; retracted position; barrier strip; deployed position; /404/256/