Lightweight armor system
US8381632B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2011 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Sep 10, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41H5/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The disclosure provides a shock absorbing layer comprised of one or more shock absorbing cells, where a shock absorbing cell is comprised of a cell interior volume containing a plurality of hydrogel particles and a free volume, and where the cell interior volume is surrounded by a containing layer. The containing layer has a permeability such that the hydrogel particles when swollen remain at least partially within the cell interior volume when subjected to a design shock pressure wave, allowing for force relaxation through hydrogel compression response. Additionally, the permeability allows for the flow of exuded free water, further dissipating wave energy. In an embodiment, a plurality of shock absorbing cells is combined with a penetration resistant material to mitigate the transmitted shock wave generated by an elastic precursor wave in the penetration resistant material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.