Energy absorbing stitch ripping composite tubes containing collapsible cells
US8828513B2 · kind B2 · utility
2Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2009 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Jul 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249923
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An energy absorbing system has an inner tube and an outer tube that are stitched together. The inner tube contains a set of fibers oriented in a first direction and the outer tube has a second set of fibers oriented in a direction different from the first direction. Preferably these orientations are equal and opposite to each other. The inner tube may be hollow, but preferably has a cellular core. The outer tube may be spaced apart from the inner tube to create an annular cavity that is filled with a cellular material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.