Helmets for protection against rifle bullets
US8853105B2 · kind B2 · utility
8Cited by
22References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | May 7, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3813
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A helmet shell is formed having an outer section of fibrous layers, a middle section of fibrous layers and an inner section of fibrous layers. The outer section layers contain high tenacity abrasive fibers in a resin matrix. The middle section layers contain high strength polyolefin fibers and are in the form of woven or knitted fabrics with a resin matrix. The inner section layers contain high strength polyolefin fibers and are in the form of non-woven fabrics with a resin matrix. The helmet is lightweight and resists penetration of rifle bullets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.