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US 2025/0049153 A1Published application
Energy absorbing systems
AssigneeRheon Labs Ltd
InventorDaniel James Plant
Life of this patent
Estimating the term…
Abstract
Disclosed herein are flexible energy absorbing systems and methods of manufacturing flexible energy absorbing systems. The systems include one or more cells of a strain rate sensitive material and having a re-entrant geometry. Some of the systems have an anisotropic geometry to provide a different response to impacts from different directions.
Claims39
1-20. (canceled)
A flexible energy absorbing system comprising a body, the body comprising:
- an inner cell and an outer cell,
- wherein the inner cell is within the outer cell,
- wherein the inner cell is retained within the outer cell by a web,
- wherein at least one of the inner cell and the outer cell comprise a re-entrant geometry,
- wherein the body comprises a strain rate sensitive material,
- wherein the inner cell comprises a first overhang at an opening of the inner cell, and
- wherein the outer cell comprises a second overhang at an opening of the outer cell.
4 more elements
A method of manufacturing a flexible energy absorbing system, the method comprising forming a body, wherein forming the body comprises:
- forming an inner cell;
- forming an outer cell,
- wherein at least one of the inner cell and outer cell is formed with a re-entrant geometry;
- forming a web to retain the inner cell within the outer cell;
- forming an overhang in the inner cell at an opening of the inner cell;
- and
- forming a different overhang in the outer cell at an opening of the outer cell,
- wherein the body comprises strain rate sensitive material.
5 more elements
A flexible energy absorbing system comprising a body, the body comprising:
- an inner cell and an outer cell,
- wherein the inner cell is within the outer cell,
- wherein the inner cell is retained within the outer cell by a web,
- wherein at least one of the inner cell and the outer cell comprise a re-entrant geometry,
- wherein the body comprises a strain rate sensitive material, and
- wherein the inner cell and the outer cell are orientated in the same direction.
3 more elements
A body armour comprising:
- a flexible energy absorbing system comprising a body, the body comprising:
- an inner cell and an outer cell,
- wherein the inner cell is within the outer cell,
- wherein the inner cell is retained within the outer cell by a web,
- wherein at least one of the inner cell and the outer cell comprise a re-entrant geometry,
- wherein the body comprises a strain rate sensitive material,
- wherein the inner cell comprises a first overhang at an opening of the inner cell, and
- wherein the outer cell comprises a second overhang at an opening of the outer cell.
5 more elements
A body armor comprising:
- a flexible energy absorbing system comprising a body, the body comprising:
- an inner cell and an outer cell,
- wherein the inner cell is within the outer cell,
- wherein the inner cell is retained within the outer cell by a web, and
- wherein at least one of the inner cell and the outer cell comprise a re-entrant geometry,
- wherein the body comprises a strain rate sensitive material, and
- wherein the inner cell and the outer cell are orientated in the same direction.
4 more elements
A helmet comprising:
- a flexible energy absorbing system comprising a body, the body comprising:
- an inner cell and an outer cell,
- wherein the inner cell is within the outer cell,
- wherein the inner cell is retained within the outer cell by a web,
- wherein at least one of the inner cell and the outer cell comprise a re-entrant geometry,
- wherein the body comprises a strain rate sensitive material,
- wherein the inner cell comprises a first overhang at an opening of the inner cell, and
- wherein the outer cell comprises a second overhang at an opening of the outer cell.
5 more elements
A helmet comprising:
- a flexible energy absorbing system comprising a body, the body comprising:
- an inner cell and an outer cell,
- wherein the inner cell is within the outer cell,
- wherein the inner cell is retained within the outer cell by a web,
- wherein at least one of the inner cell and the outer cell comprise a re-entrant geometry,
- wherein the body comprises a strain rate sensitive material, and
- wherein the inner cell and the outer cell are orientated in the same direction.
4 more elements
Dependencies are inferred from the claim text.