Abstract: An electric toaster includes a grate heating body having a reflector. A barlike heating element is disposed in front of the reflector. A shielding device is disposed in front of the heating element. The shielding device includes a field having a plurality of spaced-apart substantially round or polygonal shielding bars with a reflective surface extending approximately parallel to the heating bar and to one another.

Abstract: The invention relates to catalytic coating compositions for surfaces of cookers, ovens, fryers or grills, to a process for the preparation of these coating compositions, and to cookers, ovens, fryers or grills or parts thereof having surfaces provided with the coating compositions according to the invention.

Abstract: A pyrolytic self-cleaning stove includes at least one wall region defining an oven chamber, a muffle disposed in the at least one wall region, a heating element with additional ambient air heating for operating the muffle, an ambient air blower for ventilating the muffle, a device associated with the muffle for pyrolytic self-cleaning, and a sensor array disposed in the cooking chamber for detecting oven soiling values caused by operation. A pyrolytic self-cleaning method for stoves includes on-line optimization of a definable pyrolysis temperature range up to approximately 500.degree. C.

Abstract: A stove with pyrolytic self-cleaning includes an oven having an oven space, at least one wall region, a heating element disposed in the at least one wall region, a forced-air blower for venting the oven, a device for pyrolytic self-cleaning, and an optional forced-air heating device. A sensor system is disposed in the oven space for detecting operationally dictated oven soiling values and issuing input values. An evaluation circuit has an input connected to the sensor system for frequency-converting the input values, for digitizing the input values, for counting the input values, for storing the input values, and for concatenating the input values. The evaluation circuit has an output side signaling a degree of soiling and the evaluation circuit recommends and/or carries out an initiation of pyrolysis.

Abstract: A cooktop assembly has a glass-ceramic cooktop, a radiant heater defining a heating zone of the cooktop, and a metal sensor disposed under the cooktop inside or outside the heating zone. A mains voltage contact protector for the sensor includes operating the sensor at a higher-frequency operating point than for normal operation, and a rejection filter being connected to the sensor and dimensioned for mains voltage contact protection.

Abstract: A cook top includes a flat area for placing kitchenware. The flat area has markings, in the form of lines, dots or the like, identifying heatable cooking areas. The flat area is formed of a plate of glass or glass ceramic material in the vicinity of the markings and remaining glass or glass ceramic material. The markings are formed of the glass or glass ceramic material of the plate. The glass or glass ceramic material of the plate has a different material structure in the vicinity of the markings than the remaining glass or glass ceramic material.

Abstract: A temperature control apparatus for a baking oven includes a baking heating element for heating the baking oven, a grill heating element disposed in the baking oven, a first thermostatic baking oven regulator manually settable to different temperatures for the baking heating element, a second regulator manually settable to different heating stages for the grill heating element, and a single setting device for setting and operating the first and second regulators, the setting device having a first control range in which the first regulator is adjustably controlled and a second control range in which the second regulator is adjustably controlled.

Abstract: A method for roasting coffee beans in a roasting chamber, which includes depositing a quantity of coffee beans in the roasting chamber being small in proportion to the volume of the roasting chamber, directing a heatable air current through the roasting chamber substantially vertically from the bottom upward for rotating, upwardly whirling and circulating the coffee beans in a freely suspended state substantially untouched by each other and by the roasting chamber, and a device for carrying out the method.

Abstract: An apparatus for heating an air current, includes a heating coil being heated until it glows providing radiation in a given region, a device for conducting an air current past the heating coil, an electronic heating power control device connected to the heating coil, and a control sensor connected to the control device in the form of a light radiation sensitive circuit element disposed in the given region.

Abstract: A piston system is used as a pressure-independent flow-volume-regulating valve in which the piston divides the piston chamber into two sections which communicate with one another via a flow-throttling zone and, dependent upon pressures applied which are opposed on the piston by restoring forces, affects control orifices. The restoring force for the piston is guided over a compensating member for temperature-dependent expansions.

Abstract: A heating device for radiation heating units heated by electric energy includes a radiation heating region and a combination of high-temperature radiation heating elements and normal-temperature radiation heating elements disposed in the heating region.

Abstract: A roasting chamber for roasting green coffee beans with a heated air current flowing from a lower air inlet region to an upper air outlet region of the roasting chamber, includes a roasting-waste settling chamber disposed in the air outlet region, the settling chamber being in the form of a substantially horizontal annular receiving trough having a substantially vertical central air inlet opening formed therein, an air-permeable and coffee-waste particle-impermeable filter covering the receiving trough, and a supplemental cup-shaped trough disposed concentrically below the receiving trough, the cup-shaped trough having a larger diameter than the air inlet opening and having an edge region disposed at a distance from the receiving trough defining a radial air passage therebetween.

Abstract: A sensor for monitoring the deposition of frozen fog and/or ice on evaporator, refrigeration machine or heat pump surfaces, includes a can-shaped housing having opposite sides. A mounting heat conductingly connects the housing to the evaporator. First and second membranes are respectively disposed at the opposite sides of the housing, and first and second electro-acoustic transducers are each attached to a respective one of the membranes. An alternating voltage is applied to the first transducer causing the first transducer to oscillate the first membrane, and the second membrane is spaced from the first membrane by a distance permitting oscillation of the first membrane to oscillate the second membrane.

Abstract: Metering valve, including a substantially vertically-disposed tubular housing, the housing having an upper and a lower end, the lower end of the housing having a valve seat formed thereon and an outlet opening formed therein, a cap being integral with the upper end of the housing and having an impact surface formed thereon, a substantially tubular ram being axially liftable by a magnetic force field in the housing, the ram having an upper and a lower end, the lower end of the ram having a sealing cone formed thereon and the ram having drainage ports formed therein in vicinity of the sealing cone, the drainage ports being operable to leak fluid below the ram when the ram is lifted, the upper end of the ram being operable to adjoin the impact surface of the cap when the ram is lifted, and the valve seat having at least one selectively operable air inlet formed therein being associated with the outlet opening.

Abstract: An electromotively driven household slicing machine for food, includes a main housing, a cutting tool for cutting food, an integral electromotive drive module for driving the cutting tool, the drive module having its own housing and being lockable to and easily detachable from the main housing, and a device disposed on the main housing for centering and connecting the cutting tool to the drive module in an operating position.

Abstract: Automatic household beverage dispenser including an equipment cabinet having a front and defining a mixing space with a dispensing station and an equipment space formed therein, detachable and replaceable functional parts including supply tanks for beverage concentrate and a device for dispensing carbon dioxide, electrical and flow devices for proportionate dispensing of concentrate, forming a mixture of concentrate and water and conducting the mixture to the dispensing station, the equipment space having a coverable opening formed at the front of the equipment cabinet for removal and replacement of all of the functional parts.

Abstract: A control circuit assembly, includes a cooking plate having at least two individual cooking regions being electrically connectible in common for cooking together, heating elements being disposed in the cooking regions of the cooking plate and having inputs, current circuits connected to the heating elements, an electronic control device connected to the inputs of the heating elements for producing variable heating power outputs, heating power control devices respectively associated with the heating elements, and switching elements disposed in the current circuits for selectively connecting each of the respective heating elements in the individual cooking regions to one of the heating power control devices in a first switching mode, and for connecting the heating elements of the individual cooking regions together to one of the heating power control devices while disconnecting the other heating power control devices from the respective heating elements with which they are associated in a second switching mode.