Safety helmet assembly
US6317895A · kind A · utility
14Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jul 14, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A safety helmet having a rigid outer shell, a shock absorbing layer inside of the outer shell, and a shield layer fabricated from a strong and lightweight material positioned between the outer shell and the shock absorbing layer. The shield layer is preferably free to move relative to the outer shell in a direction toward the shock absorbing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.