Rapidly formed electrical connection
US4253233A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1979 |
| Grant date | Mar 3, 1981 |
| Priority date | — |
| Expiry date | May 4, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49174
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical accessory having a lead is connected to an electrical cord having a multi-strand conductor by placing the cord and the lead against a backing member. A tool member vibrated at an ultrasonic frequency is brought into engagement with the electrical cord. Insulative material surrounding the conductor is melted and displaced away from the tool member. The conductor is driven against the lead and the lead is driven into the surface of the backing member. Upon de-energization of the tool member, the displaced insulative material solidifies and secures the connection between the conductor and the lead. The tool member includes a tip from which a sharpened projecting portion extends. The projecting portion severs the conductor in those instances where the conductor is to be connected to spaced leads. Serrated driving surfaces are positioned on either side of the projecting member. The serrations minimize excessive displacement of the strands of the conductor during the attachment process and provide a place for insulative material to go so that a good connection between the conductor and the leads can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.