Molded articles and molding methods particularly for a protective helmet
US8117679B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 22, 2006 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Aug 9, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/4821
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Protective structures, such as helmets, may have a shell including an outer shell and a tunnel element integral to the outer shell. The tunnel element may have a first opening at an outer surface side of the shell and a second opening at an inner surface side of the shell so that air flow may occur between the openings and wherein the tunnel element is fused to the outer shell. An impact liner may be directly in-molded to shells suitable for use in motorcycle helmets and other helmets that must meet certain standards. The impact liner may include one or more venting channels that are coupled to a tunnel integral to the shell structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.