Ventilated air liner for a helmet
US8544117B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2011 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Dec 13, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/122
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A helmet has a ventilated shell, ventilated padding and a ventilated liner of plural cells mounted to the padding for engaging a wearer's head. The liner has top and bottom flexible sheets fused around their perimeter, the bottom sheet having plural round or oval toroidal cells and plural round or oval closed cells, the openings in the toroidal cells extending through the top sheet. Foam at least partly fills each cell. Cells under a crown of the shell are connected in a first circuit with a valve for inflating these cells and a other cells under temporal and occipital portions of the shell are connected in a second inflation circuit with a valve for inflating the second plurality of the cells. Cells under the frontal portion not being inflatable and being substantially filled with foam padding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.