Protective helmet with multiple pseudo-spherical energy management liners
US10271603B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Oct 17, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/283
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A helmet comprising and outer liner and an inner liner slidably coupled to an interior surface of the outer liner is disclosed. The outer liner comprises an interior surface and the inner liner comprises an exterior surface. The inner liner is composed of an elastically deformable material. A majority of the interior surface of the outer liner and a majority of the exterior surface of the inner liner are both substantially parallel to a pseudo-spherical surface having a coronal cross section that is circular with a first radius and a sagittal cross section that is circular with a second radius different from the first radius. The inner liner is elastically deformable along the interior surface of the outer liner in response to rotation of the outer liner relative to the inner liner caused by an impact to the helmet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.