Sensing group in an automatic control temperature system for foods in vessels heated by a flame from a gas burner
First Claim
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1. An apparatus for automatically controlling the temperature of foods in a vessel heated by a flame of a gas burner, comprising:
- a cap comprising an upper part having a first thermal conductivity, and an annular part in thermal contact with said upper part and having a second thermal conductivity lower than said first thermal conductivity, said annular part being exposed to but spaced from said flame;
means for biasing said cap against said vessel so that said upper cap part abuts said vessel; and
means for controlling the quantity of gas supplied to said burner, said control means comprising a temperature responsive sensor borne on said upper cap part.
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Abstract
A sensor group in an automatic temperature control system for foods in vessels heated by a flame from a gas burner supplies a first heat quantity to a temperature sensing element within the group, as a function of the foods'"'"' temperature; and a second, smaller heat quantity, as a function of the flame temperature. The ratio between the two heat quantities is such that a small progressive temperature increase is obtained at the sensing element when a constant food temperature has been reached.
29 Citations
15 Claims
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1. An apparatus for automatically controlling the temperature of foods in a vessel heated by a flame of a gas burner, comprising:
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a cap comprising an upper part having a first thermal conductivity, and an annular part in thermal contact with said upper part and having a second thermal conductivity lower than said first thermal conductivity, said annular part being exposed to but spaced from said flame; means for biasing said cap against said vessel so that said upper cap part abuts said vessel; and means for controlling the quantity of gas supplied to said burner, said control means comprising a temperature responsive sensor borne on said upper cap part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for automatically controlling the temperature of foods in a heated vessel, comprising:
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a gas burner having a first axis; a gas nozzle connected to said burner and having a second axis offset from said first burner axis; and a sensor group adjacent to said burner and said nozzle controlling the quantity of gas supplied to said burner, and having a third axis offset from said first burner axis; wherein said sensor group comprises a sensing element in thermal contact with said foods and means to provide a quantity of heat to said element as a function of the temperature of a flame produced by said burner, said quantity of heat being smaller than that supplied to said sensor element from said foods, such that the temperature indicated by said element increases after said foods reach a constant temperature. - View Dependent Claims (12, 15)
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13. An apparatus for automatically controlling the temperature of foods in a heated vessel, comprising:
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a gas burner having a first axis; a gas nozzle connected to said burner and having a second axis offset from said first burner axis; and a sensor group adjacent to said burner and said nozzle controlling the quantity of gas supplied to said burner, and having a third axis offset from said first burner axis. - View Dependent Claims (14)
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Specification