Protective helmet with liner assembly
US10455884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Feb 27, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B71/10
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A protective helmet having a liner assembly received in an outer shell and connected to the outer shell, with front, rear, side and top portions each including at least one zone where the liner assembly includes a plurality of overlapping layers, each of the layers being made from one of first, second, third and fourth materials, where the first material has a greater density and/or hardness than that of the second, third and fourth materials, the second material has a greater density and/or hardness than that of the third and fourth materials, and the third material has a greater density and/or hardness than that of the fourth material, and wherein the liner assembly includes one or more particular zones set forth in Table 3 or 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.