Apparatus for providing an electrical coil with leads
US4372029A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1980 |
| Grant date | Feb 8, 1983 |
| Priority date | — |
| Expiry date | Nov 3, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/514
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
This apparatus makes an electrical coil from conductive wire having an insulating coating bonded thereto and provides the coil with at least one conductive lead. The coil winding operation is stopped when a predetermined wire region is located at a work station, where a section of the insulating coating is removed, thereby exposing a section of bare wire. Then there is placed in contact with the section of bare wire and cold-welded thereto a thin conductive strap that extends transversely of the wire and forms said lead. Prior to such welding, the strap is carried transversely of the wire into its position for contacting the wire by a transversely-movable framework which also carries the means for making the cold weld. This transverse movement of the framework is stopped when the welding means is correctly positioned to make the weld by suitable framework stop means. This stop means is coupled to traversing mechanism which is used in the coil winding operation for shifting a portion of the wire axially of the coil before the wire portion enters the coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.