E - Fixed Constructions – 01 – F
Patent
E - Fixed Constructions
01
F
91/3
E01F 15/00 (2006.01)
Patent
CA 1247425
ABSTRACT An inertial barrier system can be constructed with barrier units of various, sequentially increasing barrier weights (i.e., masses). The inertial barrier units are each constructed from similar parts, namely, a frangible hollow container of conical or other generally circular cross section having upper and lower portions, with the lower portion having joined to the upper portion by substantially annular horizontal ledge; an inner core of frangible material and formed substantially as a hollow conic member, the flange being dimensioned to fit onto and be supported by the ledge of the container; and a frangible cover to fit the open top of the contain- er. The inner core is orientable in either an upwards position or a downwards position, each of which has the flange of the core resting on the ledge of the container A unique feature of the inner core is that only a single core is needed for the various option of granular mater- ial; by contrast, conventional systems require separate cores for each of generally five options, namely, 200, 400, 700, 1400 and 2100 pounds of granular material. The container is divided thereby into a lower section and upper section, with the upper section receiving a fill of energy-absorbing granular material, such as sand. Indicia embossed on the core and on the inside of the container indicate the various predetermined levels to which the container is to be filled to provide a barrier unit of the proper predetermined weight.
478602
Energy Absorption Systems Inc.
Ridout & Maybee Llp
LandOfFree
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