Patents Assigned to Rational AG
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Publication number: 20090061070Abstract: A method for the cooking of a cooking product in a cooking appliance with a cooking chamber that comprises at least one heating device, a computer device, a memory device and at least one sensor device, is carried out, in dependence on a degree of cooking of a cooking product and/or of a cooking duration, in particular determined by the core temperature, the browning, the pH value and/or the cooking value, from values measured by the sensor device with consideration of the at least occasionally deposited values in the memory device via the computer device, wherein at least two steps separated from one another in time, comprising a pre-cooking step, which is interrupted when a determined intermediate value of the degree of cooking and/or of the duration of cooking, in particular a determined remaining time for reaching the cooking duration is reached, and a finishing cooking step, in particular a finishing step that is recalled at a later time point in order to end the cooking of the cooking product with consiType: ApplicationFiled: August 26, 2008Publication date: March 5, 2009Applicant: RATIONAL AGInventors: Michael Greiner, Manfred Breunig
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Publication number: 20080295702Abstract: A cooking device has at least one pre-set parameter for at least one predetermined program, such as a cooking program, and/or cleaning program, and/or for at least one predetermined mode of operation, such as a cooking mode of operation or a cleaning mode of operation. The preset parameter can be modified by means of at least one modification function element of a control element of the cooking device. During a particular time period, the modification can be confirmed, accepted and/or stored by means of at least one confirmation and/or storage function element of the control element of the cooking device, and after a particular time period has elapsed, the modification can be confirmed, accepted and/or stored automatically by the cooking device.Type: ApplicationFiled: December 27, 2004Publication date: December 4, 2008Applicant: Rational AGInventors: Peter Wiedemann, Andrea Jurgens, Cornelia Dietmayer, Michael Greiner, Erwin Schuller, Gerd Funk, Thomas Treu
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Publication number: 20080280000Abstract: The invention concerns a method for conducting at least one cooking process in a cooking chamber of a cooking appliance based on a multiple number of parameters that can be entered through an input device of the cooking appliance, whereby, based on the parameters, at least one cooking product and/or cooking program and at least one starting and/or ending time of the cooking of at least one cooking product and/or for at least one cooking program and at least one cooking parameter can be selected, whereby, in dependence of the selection of the starting time and/or ending time in the selection of a multiple number of cooking products and/or cooking programs, an output device indicates when which cooking product is to be loaded into the cooking chamber and to be removed from the cooking chamber and/or, based on at least one parameter, that determines at least one cooking parameter, each cooking process is optimized with regard to the energy consumed by the cooking appliance, the required time and/or the weight loType: ApplicationFiled: May 6, 2008Publication date: November 13, 2008Applicant: RATIONAL AGInventors: Manfred Breunig, Michael Greiner
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Publication number: 20080264269Abstract: A cooking appliance comprises at least one cooking compartment, at least one installation compartment, at least one gas sensor array for detecting the atmosphere within the cooking compartment, the atmosphere within the installation compartment, and/or the atmosphere surrounding the cooking appliance. The gas sensor array(s) have at least two separate, different individual sensors and/or at least one coherent sensor field including at least two different sensor segments. The cooking appliance additionally includes at least one storage unit for storing signals detected by the gas sensor array(s), at least one evaluation unit for processing the detected signals, at least one control unit for controlling cooking or cleaning processes, at least one first feed line for transporting the atmosphere from the cooking appliance to the gas sensor array(s), and at least one valve at the inlet and/or in the area of the first feed line.Type: ApplicationFiled: December 22, 2005Publication date: October 30, 2008Applicant: RATIONAL AGInventors: Roland Sterzel, Michael Greiner, Andrea Jurgens, Judith Imgram, Jurgen Klasmeier, Katrin Lauterbach, Kathrin Hildenbrand, Bruno Maas, Erwin Schuller
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Patent number: 7438240Abstract: A hand-held sprayer includes an at least partially hollow shaft section, a liquid dispensing section and a hollow connecting plug element for connecting a hose extension to the hand-held sprayer. The connecting plug element is arranged within shaft section and can be fastened by a fastening element plugable through at least one opening from the outside into the shaft section and the connecting plug element has a groove running circumferentially around its outer periphery which the fastening element engages when the connecting plug element is fastened to the shaft section.Type: GrantFiled: January 7, 2004Date of Patent: October 21, 2008Assignee: Rational AGInventor: Hermann Rabe
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Publication number: 20080184986Abstract: A heat accumulator device for a cooking appliance, comprising a housing, which can be sealed by a door and contains an interior section with a cooking chamber, at least one heating device for generating hot air and/or steam from a steam generator, and a fan device for circulating hot air and/or steam in the cooking chamber. The heat accumulator device comprises at least one accumulator container, which at least temporarily holds a medium that is at least partially fluid above a specific temperature and at least one heat exchanger, into which at least part of the medium can be pumped at least temporarily and which extends into the interior section and the steam generator. The heating device contains the heat exchanger. The invention also relates to a cooking appliance comprising at least one heat accumulator device of this type.Type: ApplicationFiled: September 7, 2005Publication date: August 7, 2008Applicant: RATIONAL AGInventor: Peter Kohlstrung
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Patent number: 7409311Abstract: A method for cooking a cooking load includes at least two particularly individual items for cooking, the cooking state of which is characterized by at least two cooking state parameters, including a first cooking state parameter and a second cooking state parameter, in a cooking chamber with application of at least one measuring device for recording values of at least one property of at least one cooking load, for determining at least one of said cooking state parameters, which alters depending on the cooking process, whereby at least two of the items for cooking in the cooking load, differ in size, total surface area, volume, weight and/or diameter, in particular, mean diameter.Type: GrantFiled: October 25, 2005Date of Patent: August 5, 2008Assignee: Rational AGInventors: Judith Imgram, Andrea Jürgens, Katrin Lauterbach, Jürgen Klasmeier, Michael Greiner, Roland Sterzel
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Publication number: 20070288192Abstract: A method for cooking a cooking load, including at least two particularly individual items for cooking, the cooking state of which is characterized by at least two cooking state parameters, including a first cooking state parameter and a second cooking state parameter, in a cooking chamber with application of at least one measuring device for recording values of at least one property of at least one cooking load, for determining at least one of said cooking state parameters, which alters depending on the cooking process, whereby at least two of the items for cooking in the cooking load, differ in size, total surface area, volume, weight and/or diameter, in particular, mean diameter.Type: ApplicationFiled: October 25, 2005Publication date: December 13, 2007Applicant: RATIONAL AGInventors: Judith Imgram, Andrea Jurgens, Katrin Lauterbach, Jurgen Klasmeier, Michael Greiner, Roland Sterzel
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Publication number: 20070137496Abstract: A filling and/or charge-amount-monitoring method for a reservoir for storage of a fluid in a cooking device with an inner casing, including a cooking chamber with a fluid inlet and a fluid outlet, a ventilation device with a fan inside the inner casing, for the circulation of a part of the fluid in the inner casing and a control or regulation device, cooperating with the ventilation device and/or a filling and/or charge-amount-monitoring device, whereby a characteristic parameter for the ventilation device, changing on the basis of the force exerted by the fluid incident on the fan, is analyzed by the filling and/or charge-amount-monitoring device and may be rotation speed, power or current consumption of the ventilation device and a cooking device with a filling and/or charge-amount-monitoring.Type: ApplicationFiled: November 5, 2004Publication date: June 21, 2007Applicant: RATIONAL AGInventors: Manfred Breunig, Bruno Maas, Roland Hegmann, Rudolf Konig, Ralph Macenka, Klaus Altenburgen, Judith Imgram
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Patent number: 7232978Abstract: A method for controlling a delta-T cooking process includes (a) selecting of a set core temperature KTs and a delta-T value for the food to be cooked, (b) introducing the food to be cooked into the cooking space at an initial core temperature KT0; (c) increasing the actual cooking space temperature GTa as a function of the actual core temperature KTa over the course of at least one first time interval in such a way that an essentially constant difference approximately on the order of magnitude of the delta-T value is maintained between GTa and KTa until KTa=KTs+A and thus corresponds to a maximum value GTa-r, where A is a temperature value smaller than delta-T; and finally (d) stepwise and/or continuously decreasing the actual cooking space temperature GTa during a second time interval to a final cooking space temperature of GTe=KTs+B, where B is a temperature value of 0?B<A, in such a way that, when GTa becomes essentially the same as GTe, KTa reaches KTs more-or-less simultaneously.Type: GrantFiled: August 19, 2005Date of Patent: June 19, 2007Assignee: Rational AGInventors: Andrea Jürgens, Judith Imgram, Katrin Lauterbach, Kathrin Hildenbrand, Roland Sterzel, Michael Greiner, Jürgen Klasmeier
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Patent number: 7223943Abstract: In a method for improved fresh air supply in a cooking apparatus, an inner housing is provided to circumscribe a cooking chamber. A fan chamber is separated from the cooking chamber via at least one flow guide element. The fan chamber has a fan with a fan wheel which comprises primary blades on its side facing the first flow guide element and auxiliary blades on its side facing the wall of the inner housing through which the axle of the fan wheel passes to connect with a motor arranged outside of the inner housing. The fan wheel is provided for the circulation of cooking atmosphere and/or suction of fresh air into the inner housing via a fresh air channel, a mouth of which is separated from the axle of the fan wheel and runs into the inner housing through the wall.Type: GrantFiled: November 4, 2004Date of Patent: May 29, 2007Assignee: Rational AGInventors: Peter Kohlstrung, Thomas Schreiner
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Publication number: 20070098857Abstract: A method for determining at least one physical characteristic in a product to be cooked, such as in a product to be cooked used in a cooking process, is characterized by the following steps: generating a temporal, changeable temperature field within a product to be cooked; acquiring a plurality of first measured values in the product to be cooked, said first measured values comprising at least one first temperature value at a first position and at least one second temperature value at a second position separated from the first position, and determining the physical characteristic from the first measured values.Type: ApplicationFiled: May 6, 2004Publication date: May 3, 2007Applicant: Rational AGInventor: Peter Kohlstrung
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Publication number: 20070084457Abstract: The invention relates to a heating element for a cooking appliance, particularly for the direct or indirect electrical heating of at least one item to be cooked, including at least one supporting layer, at least one heating element layer, which contacts the supporting layer at least in sections in a direct or indirect manner, and including at least one electric contact element or conductor element, with at least one elastic arresting element, which is or can be connected to the electric contact element or conductor element. The electric contact element or conductor element can be brought into contact, at least occasionally, with at least one heating resistor and/or with at least one contact point of the heating element layer via the elastic force of the elastic arresting element.Type: ApplicationFiled: September 16, 2004Publication date: April 19, 2007Applicants: RATIONAL AG, FRIMA S.A.Inventor: Peter Wiedemann
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Patent number: 7202454Abstract: A method for the determination of a turning time of at least one cooking product, to which heat is supplied from one side during a cooking process includes a) determination of a first temperature TA in the cooking product at the beginning of the cooking process at an initial time point tA as well as of a set temperature TE of the cooking product which must exist at the end of the cooking process at the end time tE; b) acquiring of a first temperature difference between the set temperature Tset and the first temperature TA; c) determination of at least one actual temperature Tactual in the cooking product at several times during the cooking process; d) acquiring of the time of turning tT as the time at which a second temperature difference between the set temperature Tset and the actual temperature Tactual reaches a certain fraction of the first temperature difference; and e) outputting a signal when the time of turning tT is reached.Type: GrantFiled: February 1, 2006Date of Patent: April 10, 2007Assignee: Rational AGInventors: Peter Wiedemann, Klaus Altenburger, Helen Podestat
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Patent number: 7196292Abstract: A method for controlling a cooking process in the cooking chamber of a cooking device according to the point of condensation inside the cooking device includes introducing at least one cooking item and at least one accessory such as a gastronomic container, a plate, tin plate, a support, a suspended ladder, a kiln tray and/or kiln tray cart and/or at least one reference body into the cooking chamber; at least partially determining during the cooking process at least one climate parameter, especially one relating to temperature and moisture, in the cooking area, or on the cooking item, or on the accessory or on the reference body; determining the actual extent by which the point of condensation is exceeded or is not achieved on the cooking item, accessory and/or reference body; and adapting the climate parameter in the cooking chamber during the cooking process according to the extent by which the point of condensation is exceeded or not achieved such that the climate inside the cooking chamber, especially theType: GrantFiled: March 1, 2004Date of Patent: March 27, 2007Assignee: Rational AGInventors: Judith Imgram, Andrea Jürgens, Katharina Wallenwein, Thomas Garner, Michael Greiner, Jürgen Klasmeier, Thomas Schreiner
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Patent number: 7165942Abstract: The disclosure relates to a fan impeller including a base plate and a plurality of fan impeller blades fixed to the plate. The fan impeller blades are positioned in an essentially vertical manner on the base plate and have a substantially radial arrangement, each fan impeller blade including a front edge facing radially outwardly that is substantially perpendicular to the base plate, a rear edge facing radially inwardly that is substantially perpendicular to the base plate, an exterior surface located on the delivery side of the fan impeller and an interior surface located on the intake side of the fan impeller. At least one raised element is mounted and/or configured on the exterior surface of at least one selection of the fan impeller blades, the element being positioned at a distance from the base plate and extending substantially in a diagonal manner away from the base plate from the front edge to the rear edge of the fan impeller blades.Type: GrantFiled: August 6, 2003Date of Patent: January 23, 2007Assignee: Rational AGInventors: Elmar Junker, Thomas Schreiner, Bruno Maas, Peter Kohlstrung, Manfred Breunig
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Publication number: 20070012804Abstract: A hand-held sprayer includes an at least partially hollow shaft section, a liquid dispensing section and a hollow connecting plug element for connecting a hose extension to the hand-held sprayer. The connecting plug element is arranged within shaft section and can be fastened by a fastening element plugable through at least one opening from the outside into the shaft section and the connecting plug element has a groove running circumferentially around its outer periphery which the fastening element engages when the connecting plug element is fastened to the shaft section.Type: ApplicationFiled: January 7, 2004Publication date: January 18, 2007Applicant: RATIONAL AGInventor: Hermann Rabe
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Publication number: 20070000905Abstract: A method for controlling a cooking process in the cooking chamber of a cooking device according to the point of condensation inside the cooking device includes introducing at least one cooking item and at least one accessory such as a gastronomic container, a plate, tin plate, a support, a suspended ladder, a kiln tray and/or kiln tray cart and/or at least one reference body into the cooking chamber; at least partially determining during the cooking process at least one climate parameter, especially one relating to temperature and moisture, in the cooking area, or on the cooking item, or on the accessory or on the reference body; determining the actual extent by which the point of condensation is exceeded or is not achieved on the cooking item, accessory and/or reference body; and adapting the climate parameter in the cooking chamber during the cooking process according to the extent by which the point of condensation is exceeded or not achieved such that the climate inside the cooking chamber, especially theType: ApplicationFiled: March 1, 2004Publication date: January 4, 2007Applicant: RATIONAL AGInventors: Judith Imgram, Andrea Jurgens, Katharina Wallenwein, Thomas Garner, Michael Greiner, Jurgen Klasmeier, Thomas Schreiner
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Publication number: 20060289459Abstract: A cooking method for a cooking device with at least one cooking container, such as in the form of a pan or similar, which can be filled at least partly with a fluid cooking medium, especially water or milk, so that the cooking product can be cooked, especially boiled or poached in the cooking medium, including the following steps: selecting semi-automatic cooking or fully automatic cooking by an operator, selecting a cooking product and/or of a cooking process by an operator, automatically filling a first cooking container with a cooking medium in an amount determined as a function of the selected cooking product and/or selected cooking process, automatically heating the cooking medium in the first cooking container to a temperature determined as a function of the selected cooking product and/or the selected cooking process, automatically introducing the cooking product into the heated cooking medium, automatically cooking the cooking product in the heated cooking medium as a function of the selected cookingType: ApplicationFiled: April 21, 2006Publication date: December 28, 2006Applicants: RATIONAL AG, FRIMA S.A.Inventors: Helen Schmidt, Peter Wiedemann, Gerd Funk
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Patent number: 7150891Abstract: A method for managing a cooking process in a cooking chamber according to a cooking program with one cooking process probe inserted at least partially into a product to be cooked in the cooking chamber for the detection of at least two temperature values by at least two temperature sensors, includes a determination by the cooking process probe of temperature curves of a surface temperature T0 of the product to be cooked, a core temperature KT of the product to be cooked, and/or a cooking chamber temperature. The method includes detection of a faulty insertion of the cooking process probe external to the product to be cooked by using recorded temperature curves, generation of at least one acoustic and/or optical warning signal, changing to an emergency program at least at such a time as the cooking process probe is arranged in the cooking chamber, and aborting the cooking program at least at such a time as the cooking process probe is arranged outside of the cooking chamber.Type: GrantFiled: December 11, 2001Date of Patent: December 19, 2006Assignee: Rational AGInventors: Michael Greiner, Andrea Jürgena, Katharina Wallenwein, Jürgen Klasmeier, Jarosjay Klouda, Rene Markus, Christoph Reichmann