Electric heater
US5750959A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 1996 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | May 8, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2213/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric heater for arranging beneath a translucent cooking plate includes at least one electrical heating means, such as a ribbon, coil or filament lamp, in a housing comprising a base and a peripheral wall. Light indicator means is supported peripherally on the heater and visible, in operation, through the cooking plate. The light indicator means comprises an elongate light-emitting device at least partially surrounding the heater and arranged to emit light towards the underside of the cooking plate. Mask means is provided overlying the device and integral with the heater, the mask means being of a material substantially opaque to light from the device. The mask means has one or more apertures, different in configuration to the configuration of the device, through which one or more apertures light from the device is visible, viewed through the cooking plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.