Protective helmet
US7328462B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 17, 2005 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Dec 3, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/067
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective helmet of the type used in football has an external soft elastomer layer to absorb/dissipate some of the energy of an impact. Other features include a quick disconnect face guard, carbon fiber face guard with Kevlar wrap at junction points, a soft foam inner shell inside the intermediate hardened shell, and a head fitting structure including a plurality of pads, visco-elastic cells and at least one inflatable bladder. In addition, the hardened shell may be formed as a lattice frame of strips having a plurality of fibers impregnated with resin. The resin may have a dye added that will indicate if and where an impact exceeding a predetermined value is incurred by the helmet to assist a physician in diagnosing a possible head trauma injury.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.