Protective helmet
US10165818B2 · kind B2 · utility
25Cited by
21References
18Claims
0Family size
Inventor
Key dates
| Filing date | Sep 6, 2016 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Sep 7, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/221
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective helmet including an outer shell including at least one aperture, an elastomeric diaphragm connected to an inner surface of the outer shell and covering the at least one aperture, an inner shell slidingly connected to the outer shell where the inner shell is spaced apart from the outer shell, and at least one expandable bladder positioned between the outer shell and the inner shell and operatively arranged to displace the elastomeric diaphragm in the at least one aperture of the outer shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.