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US 11,746,849 B2Granted
Energy absorbing system
AssigneeRheon Labs Ltd
InventorDaniel James Plant
Life of this patent
Estimating the term…
Abstract
A flexible energy absorbing system comprising a material coated, impregnated and/or combined with a strain rate sensitive substance is disclosed. It is formed so as to define repeating adjacent cells, each cell having a re-entrant geometry such that, upon impact, the material locally densifies at the impact site.
Claims20
A flexible energy absorbing system, comprising:
- a tensile base layer comprising an open knitted polyethylene textile material;
- and
- a pattern of strain rate sensitive energy absorbing material, wherein:
- a first side of the pattern of strain rate sensitive energy absorbing material is laminated to the tensile base layer,
- a second side of the pattern of strain rate sensitive energy absorbing material, opposite the first side, is an uncovered outermost surface of the flexible energy absorbing system,
- the pattern of strain rate sensitive energy absorbing material is configured to allow air to pass through a plurality of openings in the pattern of strain rate sensitive energy absorbing material and the tensile base layer in a direction normal to a plane of the tensile base layer, and
- the tensile base layer is configured to restrain the pattern of strain rate sensitive energy absorbing material during an impact to the flexible energy absorbing system.
4 more elements
A piece of sporting equipment, comprising:
- a handle comprising a flexible energy absorbing portion,
- wherein the flexible energy absorbing portion comprises:
- a tensile base layer comprising an open knitted polyethylene textile material;
- and
- a pattern of strain rate sensitive energy absorbing material, wherein:
- a first side of the pattern of strain rate sensitive energy absorbing material is laminated to the tensile base layer,
- a second side of the pattern of strain rate sensitive energy absorbing material, opposite the first side, is an uncovered outermost surface of the flexible energy absorbing system,
- the pattern of strain rate sensitive energy absorbing material is configured to allow air to pass through a plurality of openings in the pattern of strain rate sensitive energy absorbing material and the tensile base layer in a direction normal to a plane of the tensile base layer, and
- the tensile base layer is configured to restrain the pattern of strain rate sensitive energy absorbing material during an impact to the flexible energy absorbing portion.
6 more elements
A shoe, comprising:
- a flexible energy absorbing portion,
- wherein the flexible energy absorbing portion comprises:
- a tensile base layer comprising an open knitted polyethylene textile material;
- and
- a pattern of strain rate sensitive energy absorbing material, wherein:
- a first side of the pattern of strain rate sensitive energy absorbing material is laminated to the tensile base layer,
- a second side of the pattern of strain rate sensitive energy absorbing material, opposite the first side, is an uncovered outermost surface of the flexible energy absorbing system,
- the pattern of strain rate sensitive energy absorbing material is configured to allow air to pass through a plurality of openings in the pattern of strain rate sensitive energy absorbing material and the tensile base layer in a direction normal to a plane of the tensile base layer, and
- the tensile base layer is configured to restrain the pattern of strain rate sensitive energy absorbing material during an impact to the flexible energy absorbing portion.
6 more elements
Dependencies are inferred from the claim text.