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US 5,611,641 AGranted
Crowd control barrier system
OwnerMarc E. Christenseninventor
Life of this patent
Estimating the term…
Abstract
A portable crowd control barrier for use in sporting or entertainment events having lightweight body members formed of a resiliently deformable material and each defining an interior chamber and having slots formed in end walls thereof to receive wooden studs such that the introduction of liquid into the interior chambers deforms the body members, clamping the walls of the slots against the studs and locking the system in place.
Claims23
A crowd control barrier system comprising:
- (a) a plurality of portable, reusable substantially hollow containers made from a lightweight, resiliently deformable material, each container having an exterior surface extending between a first end and an opposing second end and an interior surface defining a cavity;
- (b) means for filling the cavity of each container with a material to ballast each container;
- (c) a tongue projecting from the exterior surface of the first end of each container;
- and
- (d) a receiving aperture positioned on the exterior surface of the second end of each container, each aperture being configured so as to selectively receive the tongue of an adjacent container prior to the container being filled with the ballast, the receiving aperture being recessed within the cavity of each container so as to constrict and engage the tongue as the cavity is filled with the ballast.
2 more elements
A crowd control barrier system comprising:
- (a) a portable, reusable container made from a resiliently deformable material and having an interior surface defining a cavity therein, the container further having an exterior surface defining an opening in communication with the cavity to enable the cavity to be filled with a ballast material, the container further comprising a bottom, opposing sides, opposing ends, and a top;
- (b) means for coupling adjacent ends of a pair of individual containers, the coupling means comprising:
- (i) an elongated slot recessed within the bottom of the container and extending through one of the ends;
- (ii) an elongated member configured to be received within the elongated slot so as to project out of one of the containers, the elongated member also being so sized and configured that as the ballast material is filled into the cavity, the resiliently deformable material of the cavity deforms, clamping the elongated member within the elongated slot.
1 more element
A crowd control barrier system comprising:
- (a) a plurality of portable, substantially hollow containers made from a resiliently deformable material, each container having an exterior surface extending between a first end and an opposing second end and an interior surface defining a cavity;
- (b) means for filling the cavity of each container with a material to ballast each container;
- (c) a receiving aperture positioned on the exterior surface at the second end of each container;
- and
- (d) a tongue projecting from the exterior surface at the first end of each container, each tongue being configured so as to selectively be received within an aperture of an adjacent container, the tongue further comprising an internal chamber in communication with the cavity of the container so that the tongue radially expands within the receiving aperture when the cavity is filled with the ballast.
2 more elements
Dependencies are inferred from the claim text.