Composite springs and methods of manufacture
US7857294B2 · kind B2 · utility
8Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2009 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Mar 24, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7742
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Composite springs and methods of manufacture are described. The composite springs include a flexible core supporting multiple layers of a cured, resin-impregnated composite fiber wherein resin-impregnated composite fiber is wound or braided over the flexible core and cured on a helical mold to form a spring having a desired helical pitch, diameter and spring rate. The multiple layers of resin-impregnated composite fiber are wound or braided at ±5-90 degrees relative to the longitudinal axis of the flexible core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.