Rotary knob for electrical system
US7870810B2 · kind B2 · utility
37Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2005 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Mar 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2107
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary knob for an electrical system includes a body containing a rotary maneuvering member which actuates a cam-driving part and bears one or more electrical units. A cup is defined between an outer cylindrical flange of the body and an inner cylindrical sleeve, and contains a spring either of a helical type for urging a sliding ring separate from the driving part, or of a torsion type to return the maneuvering member. The ring provides a sensitivity function. The cylindrical sleeve defines in a central opening thereof a centering seat of the shank of the maneuvering member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.