US Patent 10508393 Portable vehicle barrier

A portable vehicle barrier for preventing the passage of unauthorized or dangerous vehicles into a protected area. The portable vehicle barrier generally includes a horizontal main beam and a plurality of spar assemblies, comprising spars radially spaced apart from each other. The spar assemblies are also spaced apart from each other along the main beam between the ends of the main beam. Accordingly, a number of spars will engage the ground or a road surface at an angle, and a number of opposite spars will be angled to engage an approaching vehicle, so as to penetrate the vehicle if it does not stop at the barrier.