Cord reel assembly
US5535960A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1994 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | Aug 31, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/15
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A cord reel assembly is provided which maintains a length of stationary wire and a length of shielded retractable wire around a spool. The assembly dispenses the retractable wire as an attached handset is extended away from the assembly, while the stationary wire is concurrently being wound. A portion of the stationary wire internal to a housing enclosure is unshielded, while a portion extending outside the housing enclosure is shielded. The unshielded stationary wire is shielded by applying conductive paint or electroplating to the housing enclosure, thereby reducing EMI emissions. A spring cover retains a recoil spring and provides a bearing surface against a spindle member. The winding direction of the stationary and retractable wires is chosen, and the stationary wire conductors are arranged with shield ground wires, such that EMI emissions are reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.