Protective headgear for whitewater use
US6854133B2 · kind B2 · utility
48Cited by
83References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2003 |
| Grant date | Feb 15, 2005 |
| Priority date | — |
| Expiry date | May 14, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/12
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Protective headgear configured for protection of a portion of a wearer's head, including a resilient outer shell, a layered composite liner including a multiplicity of deformable layers, each layer having a different stiffness than adjacent layers, and wherein a layer has a higher stiffness than that of adjacent layers on either side, and a retention system configured to resist upward/rearward rotation of the headgear with respect to the wearer's head to expose the forehead, due to hydrodynamic or aerodynamic forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.