Safety helmet
US5010598A · kind A · utility
39Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1990 |
| Grant date | Apr 30, 1991 |
| Priority date | — |
| Expiry date | Feb 2, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S2/909
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A safety helmet comprises a main body, an overbody spaced from the main body to form an air space between the two, an inner body within the main body, primary air vent apertures extending upwardly and outwardly through the inner and main bodies to the air space, and secondary air vent apertures extending upwardly and outwardly through the overbody, so that both the air within the main body, and within the air space between the main and over bodies, will vent by convection when heated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.