Braun Aktiengesellschaft

Heinz Schiebelhuth

Hartwig Kahlcke

Wolfgang Franke

Boris Wonka

Gunter Oppermann

Lothar Pacher

Heinz Kelterborn

An electrically heated continuous flow heater control system includes an electric switching element that has an open and a closed switching position and is electrically connected in series to a thermostat. Switching element (26) is always closed in the brewing process while it can be opened and closed again in the keep-warm process by a control circuit. The control circuit includes a temperature sensor which is in good heat contact with the infusion beverage. When in the initial phase of the keep-warm process the sensor temperature is in excess of a definable switching temperature, the control circuit keeps the switching element in its open position for as long as the sensor temperature remains higher than the switching temperature in the course of the consequently occurring cooling of the infusion beverage. When the sensor temperature is below or equal to the temperature of the switching element in the keep-warm process, the control circuit keeps the switching element in its closed position for a predefinable first time interval (heating cycle) irrespective of the sensor temperatures produced during the heating cycle.

Continuous flow heater control system for an apparatus for making

A beverage brewer has an electric flow-through heater operable in two power steps. In a first embodiment of the invention, the first and second pilot lamp (15 and 18, respectively) light up when the flow-through heater is operated at its upper and respectively, lower power step, while in a second embodiment of the invention, the first pilot lamp (15) indicates the ON condition of the flow-through heater and the second pilot lamp (18) lights up when it is operated at its lower power step. Both embodiments have in common that the second lead (20) of the second pilot lamp (18) is dead-ended when the second switch (12) is open, and is not connected to the secondary conductor (11) until the second switch (12) closes.

Beverage brewer with an electric flow-through heater operable in two

A bread toaster comprising a comparator circuit with a sensor responsive to infrared radiation to determine the toasting time of an object to be toasted is extended by a control circuit. The latter detects automatically, whether the bread toaster is used for toasting an object to be toasted that is introduced through a loading and unloading opening into its toasting chamber (toasting operation) or for warming up a respective item which is placed on top of the loading and unloading opening (warming-up operation). The control circuit controls during the toasting operation the operating time of the bread toaster in dependence upon the toasting degree adjusted by the user, while it puts the bread toaster into operation for a fixed period of time during the warming-up operation.

Bread toaster

The invention is directed to an alarm shut-off device for an alarm clock or timer permitting a signal delivered by the clock to be interupted or to be cancelled in that the user of the clock approaches the clock or merely moves a part of his body, for example, his hand, towards the clock. Preferably, the clock is equipped with a transmitter 2, 2' emitting infrared radiation or ultrasonic waves and a corresponding receiver 3, 3' which detects the infrared radiation or the ultasonic waves reflected by the moved body part 1. A signal shaping network 4, 5 and 6 determines the variation of the intensity with time, which variation is compared in a threshold switching stage 7 with a predeterminable value which, when exceeded, causes the alarm signal A to be shut off.

Alarm shut-off device, with a wake up signal delivering integrated

An electric coffee maker has an electric flow-through brewing water heater with a heating resistor controlled by a temperature dependent regulating switch responsive to the temperature of the heating resistor, and a warming plate heated by the heating resistor for maintaining the prepared coffee at a desired drinking temperature. Apparatus for adjustably prolonging the interruption of heating current 2 to 5 times the normal cooling time of the regulating switch is connected in circuit with the heating resistor and the regulating switch, and a manually actuated small quantity control means connects the heating current interruption prolonging apparatus in circuit with the heating resistor and the regulating switch. The prolonging apparatus may be an adjustable auxiliary electric heater in parallel with the regulating switch and thermally coupled thereto or an adjustable timer in series with the heating resistor and regulation switch and triggered by the opening of the regulating switch.

Electric coffee maker with warming plate having adjustable heat output

A multipurpose kitchen machine is proposed which, in order to increase its usefulness, in addition to its working container has at least one inner container insertable into said working container, said inner container increasing the efficiency of food processing, especially for small batches, by adjustment to individual tool shapes, and facilitates separate processing of different food batches. A special lid can be used to seal both the inner container when placed in the working container and both containers individually.

Growing community of inventors

Frankfurt-am-Main, Germany

Heinz Schiebelhuth