Electrical swivel contact assembly
US3937543A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1975 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Jan 29, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An assembly including a support plate carrying a contact member on each face. A power cord terminal has an electrically-conductive pin projecting through aligned holes in the support plate and contact members, and an electrically-conductive ring surrounding the pin and insulated from it. A spring cooperates with the pin to press the ring against one of the contact members and electrically connect the pin to the other contact member. This invention relates to an electrical swivel contact assembly which permits relative rotation between interconnected electrical terminals while permitting flow of electricity between the terminals. The invention will be described in connection with an electrically-heated curling iron. However, it is to be understood that the invention may be used advantageously with other hand-held electrical appliances, and other types of electrically-powered apparatus. When a curling iron is used, it is rotated about its longitudinal axis in order to coil hair around it. This rotation of the curling iron causes the electrical cord supplying electricity to it to become twisted. As time goes on, the twisted electrical cord becomes both an inconvenience and a danger. T…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.