Heat-sensitive variable-resistance light socket insert with resilient contact
US4549115A · kind A · utility
1Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1983 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Mar 30, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B39/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heat-sensitive variable-resistance insert device for use with a light bulb and socket, including: a heat-sensitive variable-resistance wafer for interconnecting the central contact of the socket with the central contact of the light bulb. An annular insulation member surrounds the edge of the wafer and electrically insulates it from the wall of the socket. A resilient contact is mounted on at least one side of the wafer for resiliently engaging the associated central contact and accommodating for variations in the distance between the central contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.