Energy absorbing bumper
US3999793A · kind A · utility
6Cited by
19References
4Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Dec 14, 1972 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Dec 14, 1992 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249922
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Energy absorption elements for automotive vehicles are obtained by winding filaments in the form of a continuous wire impregnated with polymerizable resin in such a manner that the turns are wound parallel to one another in horizontal planes about a detachable core of complementary contour, so as to obtain a member having a closed-loop contour; the energy absorption elements may constitute closed-contour members for producing two or more automobile bumpers cutting said elements at predetermined locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.