Composite coil spring
US8857801B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2012 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G11/14
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A composite coil spring includes a coil body that extends along a coiled axis. The coil body includes a core and a plurality of fiber layers impregnated with a polymer material. The plurality of fiber layers are arranged around the core at different radial distances from the coiled axis. Each of the plurality of fiber layers extends around the coiled axis at an oblique fiber angle to the coiled axis. Each of the plurality of fiber layers includes a number of fibers that is a product of a common base number of fibers multiplied by a positive non-zero integer from a set of positive non-zero integers. The positive non-zero integer of at least one of the plurality of fiber layers is different from the positive non-zero integer of at least one other of the plurality of fiber layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.