Molded foam vehicle energy absorbing device and method of manufacture
US7220374B2 · kind B2 · utility
9Cited by
30References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Mar 8, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249953
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for forming energy absorbing components for motor vehicles includes mixing a polymeric resin and blowing agent combination. The combination is heated to liquefy it. A mold for receiving the liquefied combination is cooled. The liquefied combination is injected into the mold in less than 1.5 seconds and preferably in 0.5 seconds or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.