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US 6,554,197 B2Granted
Gas cooktop and vessel for the cooktop
AssigneeBSH Bosch und Siemens Hausgerate GmbH
InventorsAndreas Marbach, Maximilian Neuhauser
Life of this patent
Estimating the term…
Abstract
A gas cooktop includes a gas supply control controlling flames applied to a cooking vessel through a control circuit connected to an infrared sensor that is directed at an infrared-radiation-generating outer surface region of the cooking vessel and receives temperature-related information from the surface of the vessel.
Claims28
A gas cooktop, comprising:
- at least one cooking zone having:
- a gas burner for receiving a gas supply and for distributing flames at a flame area;
- a flow adjuster fluidically connected to said gas burner and selectively supplying gas to said gas burner;
- a cooking vessel support;
- a sensing device for measuring a temperature of a cooking vessel placed on said cooking vessel support, said temperature sensing device having:
- an optical channel;
- and
- at least one infrared sensor for measuring temperature-dependent infrared radiation of the cooking vessel;
- a setpoint generator for setting a setpoint value;
- an electric circuit connected to said sensing device, to said setpoint generator, and to said flow adjuster, said circuit setting a level of the gas supply to said burner through said flow adjuster dependent upon said setpoint value received from said setpoint generator and dependent upon a measured temperature of the cooking vessel received from said sensing device;
- and
- a shielding disposed between said optical channel and said flame area, said shielding thermally separating said optical channel and the flames from one another.
9 more elements
A cooking pot for a gas cooktop having at least one cooking zone with:
- a gas burner for receiving a gas supply and for distributing flames at a flame area;
- a flow adjuster fluidically connected to the burner and selectively supplying gas to the burner;
- a cooking vessel support;
- a sensing device for measuring a temperature of the cooking pot placed on the support, the temperature sensing device having:
- an optical channel;
- and
- at least one infrared sensor for measuring temperature-dependent infrared radiation of the cooking pot;
- a setpoint generator for setting a setpoint value;
- an electric circuit connected to the sensing device, to the setpoint generator, and to the flow adjuster, the circuit setting a level of the gas supply to the burner through the flow adjuster dependent upon the setpoint value received from the setpoint generator and dependent upon a measured temperature of the cooking pot received from the sensing device;
- and
- a shielding disposed between the optical channel and the flame area, the shielding thermally separating the optical channel and the flames from one another;
- the pot comprising:
- a body having a surface including a sensor surface, said body defining an interior;
- said sensor surface disposed at a location on said surface at which the infrared sensor is directed;
- and
- said sensor surface having one of group consisting of a material, a color, and a surface finish reflecting infrared radiation in a temperature-dependent manner relatively higher than regions of said surface outside said sensor surface.
13 more elements
A gas cooktop and cooking pot combination, the cooktop comprising:
- at least one cooking zone having:
- a gas burner for receiving a gas supply and for distributing flames at a flame area;
- a flow adjuster fluidically connected to said gas burner and selectively supplying gas to said gas burner;
- a cooking vessel support;
- a sensing device for measuring a temperature of a cooking vessel placed on said cooking vessel support, said temperature sensing device having:
- an optical channel;
- and
- at least one infrared sensor for measuring temperature-dependent infrared radiation of the cooking vessel;
- a setpoint generator for setting a setpoint value;
- an electric circuit connected to said sensing device, to said setpoint generator, and to said flow adjuster, said circuit setting a level of the gas supply to said burner through said flow adjuster dependent upon said setpoint value received from said setpoint generator and dependent upon a measured temperature of the cooking vessel received from said sensing device;
- and
- a shielding disposed between said optical channel and said flame area, said shielding thermally separating said optical channel and the flames from one another;
- and
- the cooking pot comprising:
- a body having a surface including a sensor surface, said body defining an interior;
- said sensor surface disposed at a location on said surface at which said infrared sensor is directed;
- and
- said sensor surface having one of group consisting of a material, a color, and a surface finish reflecting infrared radiation in a temperature-dependent manner relatively higher than regions of said surface outside said sensor surface.
15 more elements
In combination with a cooking pot having a body with a surface including a sensor surface, the body defining an interior, the sensor surface disposed at a location on the surface, and the sensor surface having one of group consisting of a material, a color, and a surface finish reflecting infrared radiation in a temperature-dependent manner relatively higher than regions of the surface outside the sensor surface, a gas cooktop, comprising:
- at least one cooking zone having:
- a gas burner for receiving a gas supply and for distributing flames at a flame area;
- a flow adjuster fluidically connected to said gas burner and selectively supplying gas to said gas burner;
- a cooking vessel support;
- a sensing device for measuring a temperature of a cooking vessel placed on said cooking vessel support, said temperature sensing device having:
- an optical channel;
- and
- at least one infrared sensor for measuring temperature-dependent infrared radiation of the cooking vessel at said sensor surface;
- a setpoint generator for setting a setpoint value;
- an electric circuit connected to said sensing device, to said setpoint generator, and to said flow adjuster, said circuit setting a level of the gas supply to said burner through said flow adjuster dependent upon said setpoint value received from said setpoint generator and dependent upon a measured temperature of the cooking vessel received from said sensing device;
- and
- a shielding disposed between said optical channel and said flame area, said shielding thermally separating said optical channel and the flames from one another.
9 more elements
In combination with a gas cooktop having at least one cooking zone with:
- a gas burner for receiving a gas supply and for distributing flames at a flame area;
- a flow adjuster fluidically connected to the burner and selectively supplying gas to the burner;
- a cooking vessel support;
- a sensing device for measuring a temperature of the cooking pot placed on the support, the temperature sensing device having:
- an optical channel;
- and
- at least one infrared sensor for measuring temperature-dependent infrared radiation of the cooking pot;
- a setpoint generator for setting a setpoint value;
- an electric circuit connected to the sensing device, to the setpoint generator, and to the flow adjuster, the circuit setting a level of the gas supply to the burner through the flow adjuster dependent upon the setpoint value received from the setpoint generator and dependent upon a measured temperature of the cooking pot received from the sensing device;
- and
- a shielding disposed between the optical channel and the flame area, the shielding thermally separating the optical channel and the flames from one another;
- a cooking pot comprising:
- a body having a surface including a sensor surface, said body defining an interior;
- said sensor surface disposed at a location on said surface at which the infrared sensor is directed;
- and
- said sensor surface having one of group consisting of a material, a color, and a surface finish reflecting infrared radiation in a temperature-dependent manner relatively higher than regions of said surface outside said sensor surface.
13 more elements
Dependencies are inferred from the claim text.