Ultra lightweight segmented ladder/bridge system
US8448748B2 · kind B2 · utility
4Cited by
30References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2009 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Jun 13, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dual-use ladder and bridge modular system preferably includes tubes, gussets, flanges, and/or joints. In a preferred embodiment, the tubes, gussets, flanges, and/or joints are made of carbon fiber. A method connects and disconnects modular carbon fiber ladder segments. Another method creates a lightweight carbon-fiber beam with exceptionally high stiffness and strength using a combination of carbon-fiber braid material, uni-directional cloth, and pultruded carbon-fiber strips. A carbon fiber ladder segment and tube connectors are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.