Removable lampholder
US4578742A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1984 |
| Grant date | Mar 25, 1986 |
| Priority date | — |
| Expiry date | Oct 24, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21W2131/205
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lampholder for insertion into and removal from an electrically powered lighting unit which includes a socket for receiving the lamp, means for communicating electrical power from the unit to the lamp, means for releasably engaging the unit, and a cap structured to prevent cracking superposing the socket and having an upper surface and a lower surface proximate the socket. A plurality of windows through the cap of a sufficient size to vent heat emitted from the lamp, together with the heat resistant material from which the cap is formed, prevent the upper surface from exceeding a predetermined temperature. An insulation layer is preferably disposed between the lower surface and the socket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.