Sound activated lamp arrangement
US4630248A · kind A · utility
Inventor
Key dates
| Filing date | Oct 19, 1983 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Oct 19, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A sound activated lamp arrangement includes a module having a threaded lamp bulb socket at one end and a bulb base at the other end for reception in a lamp socket of a conventional table lamp. A lamp bulb is received in the module socket, and a microphone is provided on the module. Circuitry within the module connects the module socket with the module base to thereby illuminate the lamp bulb in response to the reception of an acoustic signal from a smoke alarm device, burglar alarm, or other type of alarm device by the microphone. A photocell is provided on the module and is connected to the circuitry to sense ambient illumination. The circuitry is adapted such that the bulb is only illuminated when the photocell senses darkness. A push button switch is provided on the module for conventional operation of the lamp. A collar is received on the socket shell of the lamp to prevent operation of the lamp switch thereon. For commercial applications, the module is provided with outwardly projecting lugs which engage the harp structure of the lamp to resist removal of the module from the table lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.