Abstract: An apparatus for measuring the temperature in a heating system comprising a cooking pot with cooking material positioned on a hot plate where a radiation receiver is arranged at a distance from the wall of the cooking pot and aligned with it, which receiver produces a temperature measurement signal corresponding to the temperature of the cooking material in the cooking pot. The temperature measurement signal is derived from a detected radiation area on the wall of the cooking pot which corresponds to the radiation measuring field of the radiation receiver. The effect of different distances of the cooking pot from the radiation receiver is automatically compensated for by aligning the center axis of the radiation measurement field at an acute angle to the support surface of the hot plate, so that the distance of the center of the detected radiation area from the bottom of the cooking pot increases with an increasing distance of the wall of the cooking pot from the radiation receiver.

Abstract: An apparatus for controlling and adjusting heat output during the heating phase of a steam pressure cooking vessel. The steam pressure cooking vessel is heated by an electric heating element and the temperature inside the steam pressure cooking vessel is measured. The heating element is controlled by a control circuit and a program memory which operates in a simple way at various preset rapid cooking or vitamin preserving cooking temperatures as a function of the heating characteristics and controls the heat output so that the selected cooking temperature can be adjusted and maintained constant in the simplest possible way without overshooting.

Abstract: An apparatus is provided to control the cooking process in a pressure cooker heated by an electrical heating element. By measuring values related to the temperature-time characteristic curve during the heating up phase, the cooking system is operated in an energy saving manner utilizing the inertia of the system by switching off the heating element prematurely to maintain the desired cooking time. By providing an additional mode of operation, the cooking process can be carried out in several successive cooking phases while still providing the energy saving feature of prematurely switching off the heating element in all cooking phases.

Abstract: The invention relates to a process for deriving a measuring signal proportional to the temperature rise of a temperature-time characteristic curve in a heating system having a cooker with cooking material on a heating plate, in which the temperature of the cooker is measured by means of a temperature sensor.

Abstract: An apparatus for controlling and adjusting heat output during the heating phase of a cooking vessel. The cooking vessel is heated by an electric heating element and the temperature inside the cooking vessel is measured. The heating element is provided with a control circuit and two program memories which operate as a function of the temperature increase characteristics during the simmer or warming cycles, whereby in the simmer cycle, both the first and second program memories are operative whereas in the warming cycle only the second program memory is operative in a similar manner as during the simmer cycle and over the same temperature differential but at different temperature values.

Abstract: A regulator circuit for controlling the heat output of a heating element adapted to be switched on and off by a semiconductor switch energized by a zero crossing switch having cycle group control, whereby a sensor signal derived from the sensed temperature is supplied to the zero crossing switch. In order to avoid an overriding of the control or operating temperature in the heating phase and to improve the accuracy of the temperature control, a secondary control voltage is derived from the sensor voltage according to the rate of rise and drop of the sensor voltage which in the heat phase the switch-off of the heating element is reset to lower temperatures depending on the secondary control voltage and in the cooling phase the switch-on of the heating element is reset to higher temperatures depending on the secondary control voltage.

Abstract: A device for regulating the cooking process in a cooking vessel which is heated by a heating element provided with a control circuit. The temperature in the cooking vessel is measured and is utilized by the control circuit to regulate the heating element. The cooking time can be preset by an adjustable timer. The cooking time in the cooking vessel is made independent of the inertia inherent in the cooking system by causing the timer to start metering the preset cooking time only after the cooking temperature has been reached. The operation of the timer may be governed by the slope of the temperature-time curve during the heating phase to enable the timer to shut off the heating element prematurely, relative to the preset cooking time, as the temperature-time curve rises less steeply during the heating phase.

Abstract: This invention provides an apparatus for measuring the temperature of the contents of a saucepan in a heating system comprising a saucepan and its contents placed on and heated by a heating element. The invention provides saucepans having radiating surfaces encircling the pan in a transition area between the bottom and side wall of the pan, a radiation sensor with a focusing device aligned with the radiating surface of the saucepan placed on the heating element, and provides for the radiation sensor to be spaced from the radiating surface at a distance corresponding to the focal point of the radiation focusing device.

Abstract: A process and apparatus to control the cooking process in a steam pressure cooker heated with a heating element controlled through a control circuit wherein the temperature of the pressure cooker is detected and utilized by the control circuit to regulate the heat output of the heating element, and wherein a cooking time can be preset by means of an adjustable timing element.

Abstract: An apparatus for monitoring the cooking process in a cooking vessel placed on an electric heating element, particularly a stovetop burner, comprising signal transmitter controlled by the temperature in the cooking vessel, a signal receiver in communication with the signal transmitter by a transmitter for activating a control circuit to adjust the heat output of the heating element, and a switch for turning the apparatus on and off. During the entire cooking operation and when the heating element is set at full heating capacity, a periodical surveillance is effected to determine whether the temperature varies, remains steady or decreases. If a temperature increase is measured during a monitoring cycle, the heating element is not turned off, but if the temperature remains constant or falls, the heating element is turned off.

Abstract: A device for the control of the cooking process in a steam pressure cooker filled with water and the food to be cooked and heatable by means of a heating element controlled by a control circuit wherein the temperature of the pressure cooker is detected and utilized by way of the control circuit for the adjustment of the heat output of the heating element and in which by means of an adjustable timing element a cooking time can be preselected.

Abstract: A system to control and regulate heat output during the heat-up phase of a pressure cooker heated by a heating element which can be turned on and off by means of a control circuit. The heat-up phase is adjusted, depending on the rate of temperature increase before it reaches the boiling temperature, and is controlled by a different program after the boiling temperature is reached, which determines rates of further temperature increases and also the temperature differentials between a preset cooking temperature and the current cooking temperature. Using this apparatus, the cooking temperature can be reached as quickly as possible, regardless of the characteristics of the heating phase, dependent upon the type and amount of cooking material in the pressure cooker. Energy utilization efficiency can be increased and the preset cooking temperature not exceeded.

Abstract: The invention relates to a cooking vessel comprising a cooking pan and cover, especially a steam pressure cooker, to which a temperature-dependent resistor is attached as a temperature sensor with an attached computing device for the determination of the temperature inside the cooking pot, and for the transmission of electrical signals corresponding to the temperature detected.In order for the cooking vessel to be equipped for an exact measurement of temperature without greatly increasing costs, a measuring point covered by the handle is provided, to which a temperature sensor is attached. One of the handles of the cooking pot or cover carries a plug accommodation with connection contacts, which mechanically accommodates a computing device formed as a plug unit, and connects electrically with the temperature sensor.

Abstract: The invention concerns a fitting for a cooking vessel comprising a cooking pot and a cover, especially a steam pressure cooker, with a temperature sensor attached to the cooking vessel, the temperature sensor emitting an electrical signal corresponding to the temperature inside the cooking vessel. In order to precisely detect the temperature of water contents during the heating phase, and in order to be able to use it for indicators, control, and regulation, the temperature sensor is attached to a measuring point in a heat-conducting contact to the external side of the cooking pot in the transition area between the pot bottom and the pot wall, at which point the temperature difference between the temperature of the water contents and the external temperature at the measuring point during the heating process is approximately nil.

Abstract: The invention relates to a cooking vessel comprising a cooking pan and cover, especially a steam pressure cooker, to which a temperature-dependent resistor is attached as a temperature sensor with an attached computing device for the determination of the temperature inside the cooking pot, and for the transmission of electrical signals corresponding to the temperature detected.In order for the cooking vessel to be equipped for an exact measurement of temperature without greatly increasing costs, a measuring point covered by the handle is provided, to which a temperature sensor is attached. One of the handles of the cooking pot or cover carries a plug accommodation with connection contacts, which mechanically accommodates a computing device formed as a plug unit, and connects electrically with the temperature sensor.