Spring with multiple conducting coils
US8378218B2 · kind B2 · utility
5Cited by
19References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2009 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Mar 25, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49117
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically conductive spring having first and second coils defining first and second electrical pathways for completing an electric circuit between two components which may move relative to each other. In one embodiment, the spring is a double start helical spring with first and second coils extending between respective, electrically insulated ends with the coils extending in alternating, spaced relation to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.