Abstract: In some embodiments, a barbed tape can be formed from a planar strip of flexible material and include a plurality of barbs disposed therealong, the barbs being sufficiently resilient so as to impede, by entanglement with or otherwise, the passage of an object therepast. Apparatus for deployment of barbed tape is also described.

Abstract: A barbed tape is formed from an elongate strip having laterally spaced first side and second sides. A series of sharpened barb clusters project from at least one side, and preferably both sides, of the strip. The area of the strip between each adjacent pair of barb clusters is characterized by a plurality of transverse corrugations formed adjacent the first side of the strip, and preferably extending about to the strip centerline. A continuous longitudinally extended strengthening rib may be formed on the uncorrugated second side of the strip.

Abstract: A barbed tape product as adjacent pairs of loops in which the loops of a pair are attached to each other at an attachment point that is circumferentially offset relative to an attachment point of the adjacent pair of loops. Additional attachment points may be provided in helically progressive positions between the first and second attachment points. The attachment points are positioned on one pair of loops so that each of the attachment points are circumferentially offset relative to all other attachment points on an adjacent pair of loops. The attachment points may be positioned in a predetermined helically progressive pattern on a coil of the product. The pattern may provide a predetermined natural configuration of the product when the product is in a deployed state of use. Attachment elements for attaching strands of the product together are sized and configured for strength and accuracy in automatically attached concertina or other barbed tape products.

Abstract: A barricade system includes supports positioned in a spaced-apart fashion across a path to be closed. A lightable rope is fastened to the supports to close the path to vehicular traffic. The lightable rope is energizable by a single electrical power source such as a generator or an electrical outlet. The components of the system can be stowed and transported on a trailer or the like, making the system very portable. The barricade system is particularly suited for use in closing airport taxiways, in which case it warns pilots that a taxiway is closed and prevents entry onto the taxiway. The entire system (or at least those parts of it that are placed on the taxiway) also is sufficiently frangible to permit its use as a taxiway barricade system.

Abstract: A barbed tape includes a central supporting portion and a plurality of barb clusters disposed at spaced apart locations along the central supporting portion, each barb cluster having first and second pairs of oppositely extending substantially planar barbs disposed on opposite edges of the central supporting portion and connected thereto, the barbs having a cross section which is at least partially arcuate, whereby the barbs are substantially stiffened against bending.

Abstract: A barbed tape is disclosed incorporating an improved barb configuration. A flat metal tape is formed having opposed barbed pairs that extend from a central portion at an angle to thus point the tips of the respective barbs away from the longitudinal axis of the tape. The central strip of the tape is clenched about a central core wire; intermediate barbs are provided to increase the effectiveness of the barrier while providing a means for positively positioning clips that are used to secure adjacent coils of the tape together.

Abstract: An explosive obstacle wire for rapid emplacement with bare hands. The wire is assembled in a configuration wherein barbs or other hazardous elements are ineffective. After installation in an obstacle the barbs can be quickly deformed into a hazardous configuration by explosive means. This abstract is prepared to facilitate searching and it should not be construed as a limitation of the invention.

Abstract: An explosive barrier wire for rapid emplacement with bare hands. The wire is assembled in a configuration wherein barbs or other hazardous elements are ineffective. After installation in an obstacle the barbs can be quickly deformed into a hazardous configuraton by explosive means.

Abstract: A method of forming barrier wire by explosive means. A strip of deformable material provided with grooves or slits intersecting its edges is wrapped helically around a strand of wire or explosive cord. An explosion is caused within the helix, thus deforming pointed portions of the strip generally out from the helix.