Abstract: A control device for an electrical appliance has as an operating unit comprising a rotary knob having an electrical display. The rotary knob is mounted on a rotary shaft connected to a switching device for rotary operation, wherein the rotary shaft comprises a material readily conducting magnetic field lines. An inductive energy supply is provided for the electrical display, wherein a secondary winding is arranged inside the rotary knob whose winding plane is passed through by the rotary shaft and the magnetic field lines of a primary winding. The primary winding is arranged behind the cover of the electrical appliance, and a winding plane of the primary winding is passed through by the rotary shaft.

Abstract: A control device for converting a control movement along a control path into a control signal has the control path corresponding to different control stages or control types. The control device has two measuring tracks with a linearly changing resistance associated with each track. In one embodiment, these measuring tracks are positioned concentric to each other in a semicircle. A voltage U, which is tapped via two opposite interconnected sliders, is applied to both measuring tracks at a junction point while the other junction point is connected to ground. If the detected values of the tapped voltages deviate from a corresponding stored value or pairs of values, there must be a fault, due to, for example a broken slider. This makes it possible to perform a test for determining the fault or a malfunctioning control device.

Abstract: A sensor for a sensor device on a cooking hob is provided with contacts on a support, an electronic circuit for signal processing and a resistance track for temperature measurement. The sensor is arranged in a tubular metallic housing above a radiant heater of the cooking hob. The metallic housing is operated as an electromagnetic pan recognition sensor. The functions of temperature measurement and pan recognition can be combined in one sensor device as a module. A good transmission of sensor signals can be achieved as a result of the physical proximity of the sensor signal processor to the sensor by placing them on the same support.

Abstract: In one embodiment, a method for operating a cooking point with a gas burner of a gas hob is disclosed in which pan detection is provided for switching off the gas burner when the pan is removed, wherein the pan detection unit can detect the re-placement of a removed pan onto the cooking point and then cause a further operation of the gas burner by igniting the gas burner. When the gas burner is ignited after re-placement of the pan, a power level originally set for the gas burner is only achieved after a time delay, thereby preventing any injury to the user.

Abstract: An operating device for an electrical appliance, for example a cooking appliance, is provided with a deformable metallic control panel, underneath which an electret microphone cartridge is disposed. The membrane of the microphone cartridge can be coupled to the lower side of the control panel by means of an elastomer. When pressure is exerted on the control panel by a user pressing on the operating field and causing it to deflect, the membrane of the electret microphone is moved, which in turn causes movement in the microphone and causes a signal that can be evaluated as the operating input by a user.

Abstract: An operating device for an electrical appliance has a control panel and an operating element for rotary actuation arranged thereon and a controller, wherein said operating element is mounted in a receptacle arranged behind said control panel and comprises on a front a touch-sensitive switch with a sensor element being connected electrically conductively to said controller. Said operating device comprises a retraction device for retracting said operating element into its recessed position in said receptacle by pressing. Said retraction device is configured in such a way that said knob can only be retracted into its recessed position in a single retraction rotational position, said touch-sensitive switch being deactivated by said controller in said retraction rotational position.

Abstract: An operating device for an electric hob comprises a plurality of touch pads as touch points, in which operation takes place by applying a finger to specific defined touch points. The touch pads may be in themselves structurally movable separately of the electric hob or the operating device. The touch pads comprise individual coding circuits which can be accomplished by way of modulation of an electromagnetic field. The operating device has an electrode surface for attachment next to the electric appliance, on which the touch pads are arranged. Capacitive coupling is formed between the touch pads and the electrode surface. The operating device comprises a drive and evaluation device connected to the electrode surface both for detecting touching of a touch pad in general and for detecting and differentiating between touching of a specific touch pad and touching of another touch pad as indicated by the individual coding circuit.

Abstract: An operating device for a cooktop has a cover with a control panel with a plurality of operating areas. Below the panel, several FSR sensors are positioned. When a control panel is pushed down by a process of operation, the FSR sensor changes its electrical resistance resulting in change of a signals that can be detected and interpreted as operation of the appliance by a user.

Abstract: The invention relates to an operating device for a stove top, the device comprising rotary operating parts that are rotatably mounted in a base. The parts have a protruding region as a signal means, the region rotating in a plane of the stove top or a stove top plate when the rotary operating part rotates. In said plane, the stove top has a distance sensor, which can detect the rotation of the protruding region by means of the variable distance and evaluate the same as a rotational actuation or rotational movement for operating the stove top.

Abstract: The invention relates to a temperature probe for an oven, comprising in one embodiment a longitudinal housing in the form of a spit. A temperature sensor and an electronic unit are arranged in a tip and are connected at the other end to emitting means. The temperature probe comprises a thermogenerator for producing energy. The thermogenerator uses a temperature difference between a higher temperature inside the oven and a lower core temperature in a food product, such as roast, in which the temperature probe is inserted, for producing energy for operating the emitting means.

Abstract: An operating device for an electric cook-top is disclosed having a rotary control operating unit, which is retained in position in a magnetic rotary manner on an outer surface of the cook-top. In one embodiment, the rotary control is provided with a contact switch for signal transmission of a switching process to a control unit mounted below the outer surface. In one embodiment, the contact switch is a contact switch with a capacitive coupling through the outer surface.

Abstract: In a hob (11), an operating toggle placed on a front panel (17) has on a connected power control device an actuator (23) for producing a haptic acknowledgement or response in the case of operation. The operating toggle (19) also has a proximity sensor (27). If a hand (29) approaches the operating toggle (19) for operation, this is detected by the proximity sensor and it brings the actuator (23) from a current-economizing standby mode into a normal mode, where it operates normally. If the hand (29) is removed again, it is again brought into the standby mode.

Abstract: A control device for an electric hob has a control element placed on a support. Circular ring segmental surfaces are provided as signal generators beneath the support. On the top side and underside, the control element has numerous electrically interconnected, circular ring segmental surfaces, the lower surfaces being above the signal generators during rotation. The application of a finger to a contact surface on the control element top side is directly coupled to a sensor surface on the control element underside and can be capacitively detected by a directly facing signal generator and evaluated as a corresponding control function by a control device.

Abstract: In an operating device for a cooktop with a liquid crystal display with two LCD plates, on the top of the lower of the two LCD plates is directly applied a microcontroller in the form of semiconductor chip, for example using COG technology. The semiconductor chip not only controls the LCD, but there are also provided capacitive sensor elements located on said LCD that are evaluated by the semiconductor chip, so that an independent module is formed. The module can be connected by suitable electrical connections to the cooktop and can at least partly or completely control the same.

Abstract: In order in the case of a hob (11) with operating toggles (19a-19d) placed on a front panel (17) to render visible the association between a contacted operating toggle and the hotplate (15a-15d) adjustable with said operating toggle, on the latter is provided a proximity or contact sensor. If the operating toggle (19a-19d) together with contact sensor is contacted by a hand (29), the LED (33) or other display associated with the hotplate (15) associated with said operating toggle is illuminated, which can be placed directly alongside hotplate (15).

Abstract: In one embodiment of the present invention, a method and device are disclosed for the transport of goods by rail, wherein goods wagons are used with independent propulsion means. The propulsion means for the goods wagons are used only for short journeys from a station to a customer and back. For long journeys the goods wagons are assembled into a train and pulled by a tractor vehicle.

Abstract: A heater for a hob or cooktop having a glass ceramic surface is disclosed, whereby a number of individual modules with induction coils are provided with converters and a converter control for each induction coil. The modules may be independently assembler and/or replaced, and are arranged close together beneath the glass ceramic hob and electrically connected to a busbar. Each module may be controlled separately. A heated surface of using various combinations of modules can thus be achieved.

Abstract: A control device for an electric hob has a control element placed on a support. Circular ring segmental surfaces are provided as signal generators beneath the support. On the top side and underside, the control element has numerous electrically interconnected, circular ring segmental surfaces, the lower surfaces being above the signal generators during rotation. The application of a finger to a contact surface on the control element top side is directly coupled to a sensor surface on the control element underside and can be capacitively detected by a directly facing signal generator and evaluated as a corresponding control function by a control device.

Abstract: A sensor for a sensor device on a cooking hob is provided with contacts on a support, an electronic circuit for signal processing and a resistance track for temperature measurement. The sensor is arranged in a tubular metallic housing above a radiant heater of the cooking hob. The metallic housing is operated as an electromagnetic pan recognition sensor. The functions of temperature measurement and pan recognition can be combined in one sensor device as a module. A good transmission of sensor signals can be achieved as a result of the physical proximity of the sensor signal processor to the sensor by placing them on the same support.

Abstract: A control device for converting a control movement along a control path into a control signal has the control path corresponding to different control stages or control types. The control device has two measuring tracks with a linearly changing resistance associated with each track. In one embodiment, these measuring tracks are positioned concentric to each other in a semicircle. A voltage U, which is tapped via two opposite interconnected sliders, is applied to both measuring tracks at a junction point while the other junction point is connected to ground. If the detected values of the tapped voltages deviate from a corresponding stored value or pairs of values, there must be a fault, due to, for example a broken slider. This makes it possible to perform a test for determining the fault or a malfunctioning control device.