초록 ▼

Safety device composed of a radiation emitter, a radiation receiver disposed for receiving radiation which is produced by the emitter and which traverses a radiation path between the emitter and the detector, the detector producing an output signal representative of the quantity of radiation receive

Safety device composed of a radiation emitter, a radiation receiver disposed for receiving radiation which is produced by the emitter and which traverses a radiation path between the emitter and the detector, the detector producing an output signal representative of the quantity of radiation received by the detector, and an electronic circuit coupled to the detector for analyzing the output signal produced by the detector and identifying a reduction in the magnitude of the output signal as a result of an obstruction in the radiation path, wherein the emitter and the detector are mounted on a cooking appliance in a manner which allows extraneous radiation in the vicinity of the cooking appliance to traverse the radiation path.

대표청구항 ▼

[ What is claimed is:] [1.] Safety device comprising a radiation emitter, a radiation receiver disposed for receiving radiation which is produced by said emitter and which traverses a radiation path between said emitter and said detector, said detector producing an output signal representative of th

[ What is claimed is:] [1.] Safety device comprising a radiation emitter, a radiation receiver disposed for receiving radiation which is produced by said emitter and which traverses a radiation path between said emitter and said detector, said detector producing an output signal representative of the quantity of radiation received by said detector, and electronic means coupled to said detector for analyzing the output signal produced by said detector and identifying a reduction in the magnitude of the output signal as a result of an obstruction in the radiation path, wherein said emitter and said detector are mounted on a cooking appliance at locations such that the radiation path is exposed to ambient radiation in the vicinity of the cooking appliance.