US 2017/0363395 A1Published application

Entanglement obstacle

AssigneeMid-American Gunite, Inc. dba Mid-American Group

InventorsKeith Masserant, Craig Van Camp

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Abstract

An entanglement obstacle for obstructing an area of a surface includes a mesh layer suspended over upright perimeter members via a perimeter cable and over upright central members via a central cable. The upright members are operatively attached to the surface. The perimeter cable is operatively attached to the perimeter members at a perimeter clearance above the surface to provide a trip impediment. The central cable is operatively attached to the central members at a central clearance above the surface to provide a step-over impediment. The central clearance is greater than the perimeter clearance. The mesh layer is operatively attached to the perimeter and central cables such that the mesh layer covers the obstructed area to provide an entanglement obstacle. The mesh layer is inclined from the central cable to each of first and second sides of the obstacle at an angle defined by the central perimeter clearances.

Claims20

Dependent claims

An obstacle for obstructing an area of a surface, the obstacle comprising:

a mesh layer;
a periphery defined by the mesh layer;
a central portion of the mesh layer extending from a first end of the mesh layer to a second end of the mesh layer;
wherein the central portion is bounded by the periphery;
wherein the mesh layer in an installed position is extended continuously over a surface such that an obstructed area of the surface is defined by the periphery of the mesh layer;
a plurality of perimeter upright members distributed along the periphery;
a plurality of central upright members distributed within the periphery;
wherein in the installed position a first end of each of the perimeter upright members is attached to the surface at the periphery;
wherein in the installed position a first end of each of the central upright members is attached to the surface within the obstructed area;
a perimeter cable attached to the periphery of the mesh layer and to a second end of each of the perimeter upright members;
a central cable attached to the central portion of the mesh layer and to a second end of each of the central upright members;
wherein a central clearance is defined between the central cable and the surface;
wherein a perimeter clearance is defined between the perimeter cable and the surface;
and
wherein the central clearance is greater than the perimeter clearance.

12 more elements

A method of deploying an obstacle to obstruct an area of a surface with the obstacle, the method comprising:

extending a mesh layer over an area of a surface;
wherein the mesh layer defines:
a periphery;
and
a central portion of the mesh layer extending from a first end of the mesh layer to a second end of the mesh layer;
wherein the central portion is bounded by the periphery;
wherein the mesh layer in an installed position is extended continuously over the surface such that an obstructed area of the surface is defined by the periphery of the mesh layer;
distributing a plurality of perimeter upright members along the periphery;
distributing a plurality of central upright members within the periphery;
attaching a first end of each of the perimeter upright members to the surface at the periphery;
attaching a first end of each of the central upright members to the surface within the obstructed area;
attaching a perimeter cable to the periphery of the mesh layer and to a second end of each of the perimeter upright members;
attaching a central cable to the central portion of the mesh layer and to a second end of each of the central upright members;
wherein a central clearance is defined between the central cable and the surface;
wherein a perimeter clearance is defined between the perimeter cable and the surface;
and
wherein the central clearance is greater than the perimeter clearance.

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/692,523Filed 31 Aug 2017
Priority: 23 Oct 2013
Published: 21 Dec 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F41H 11/08
Defence installations; Defence devices: barbed-wire obstacles; Barricades; Stanchions; Tank traps; Vehicle-impeding devices; Caltrops
E04B 1/19
Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons: three-dimensional [3D] framework structures
E04B 2001/1984
Characterised by the grid type of the outer planes of the framework: rectangular, e.g. square, grid
E04B 2001/1993
Three-dimensional [3D] framework structures: details of framework supporting structure, e.g. posts or walls

Family

Application61/894,616Us provisional application · filed 23 Oct 2013
Application15/026,851Continuation · filed 1 Apr 2016
Application15/692,523Continuation
US 10,119,794 B2Related patent
US 2016/0216081 A1Published application
US 9,784,537 B2Related patent
US 2017/0363395 A1This patent

From the US filing history. Foreign family members aren’t listed.