Instant defense barrier
First Claim
1. A barrier system for controlling access to a site, said system comprising:
- a plurality of rapidly erectable barrier post assembly means embedded in the earth at preselected locations relative to the site to be protected, each said barrier post assembly means including a rigid barrel housing means having a lower floor portion, an upper mouth portion located adjacent the surface of the earth, and a stop member located at a position intermediate the lower floor portion and the mouth portion;
a rigid post means confined within said barrel housing means, said post means having a foot portion normally positioned on said lower floor portion, a head portion normally located adjacent said mouth portion of said barrel housing means, and an abutment member engageable with said stop member when said post means is extended above the surface of the earth; and
remotely actuatable stored energy means for rapidly propelling said rigid post means from the normal position to the extended position; and
means for simultaneously actuating a plurality of stored energy means.
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Accused Products
Abstract
An instant defense barrier for providing unobtrusive protection for a building or other site. A plurality of barrier post assemblies are anchored in the earth. Each assembly includes a barrel and a post slidably fitted in the barrel. The head end of the post portion is essentially flush with the level of the roadbed when the post is in the normal, non-extended position. When activated by closing a switch, the post is propelled from the confined position in the barrel by an explosive charge, a compression spring or other propulsive forces to a locked extended position to provide a barrier against unauthorized passage by a motor vehicle. A plurality of auxiliary cables are optionally connected between adjacent posts to provide further obstruction to the progress of small vehicles, such as motorcycles or bicycles.
49 Citations
22 Claims
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1. A barrier system for controlling access to a site, said system comprising:
a plurality of rapidly erectable barrier post assembly means embedded in the earth at preselected locations relative to the site to be protected, each said barrier post assembly means including a rigid barrel housing means having a lower floor portion, an upper mouth portion located adjacent the surface of the earth, and a stop member located at a position intermediate the lower floor portion and the mouth portion;
a rigid post means confined within said barrel housing means, said post means having a foot portion normally positioned on said lower floor portion, a head portion normally located adjacent said mouth portion of said barrel housing means, and an abutment member engageable with said stop member when said post means is extended above the surface of the earth; and
remotely actuatable stored energy means for rapidly propelling said rigid post means from the normal position to the extended position; and
means for simultaneously actuating a plurality of stored energy means.- View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- 8. The invention of said 4 wherein said latch means includes a trigger latch assembly for normally latching said post means in the normal position, and means for releasing said trigger latch assembly to enable extension of said post means.
Specification