Apparatus for altering poles on an accessory
US7601032B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2005 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Dec 30, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R5/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An accessory (100) has a housing (102) for varying a number of accessible poles (110A, 110C, 112A, 112C, 112E). The accessory includes a plurality of projections (110, 112) each having at least one pole coupled to an insulator (110B, 112B, 112D) to prevent electrical contact with another pole, a plurality of conduction wires (219) each insulated and connected at a first end to a corresponding pole of the plurality of projections, and at least one lever (105) coupled to a corresponding one or more of the plurality of projections for sliding one or more projections in and out of the housing in a plurality of positions (106A-C) after a force is applied on such lever, thereby controlling the exposure of a portion of at least one pole of each of one or more of the projections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.