Electric boost heater for deep fryer
First Claim
1. A fryer system comprising, in combination:
- a fryer including a vat for containing shortening therein;
a temperature sensor to detect a temperature of the shortening in the vat;
a first heating means supplying heat to the vat at a full output level whenever the temperature sensor detects that the temperature of the shortening is below a setpoint temperature; and
a second heating means supplying heat to the vat, the second heating means operating only after the first heating means has initially heated the shortening until it has reached the setpoint temperature.
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0 Petitions
Accused Products
Abstract
A fryer system having a vat containing shortening, a first heater for supplying heat to the shortening, and a second heater for supplying heat to the shortening. The second heater is preferably activated only when the temperature of the shortening falls below a predetermined minimum temperature and disabled when the temperature of the shortening reaches a predetermined maximum temperature. In one preferred embodiment, the first heater is a heat exchanger with a gas burner while the second heater is an electric heating element. In another preferred embodiment, the first heater is an electric heating element and the second heater is an autotransformer supplying an overvoltage to the electric heating element. A method for operating a heating system for a fryer is also disclosed.
22 Citations
19 Claims
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1. A fryer system comprising, in combination:
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a fryer including a vat for containing shortening therein; a temperature sensor to detect a temperature of the shortening in the vat; a first heating means supplying heat to the vat at a full output level whenever the temperature sensor detects that the temperature of the shortening is below a setpoint temperature; and a second heating means supplying heat to the vat, the second heating means operating only after the first heating means has initially heated the shortening until it has reached the setpoint temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A fryer system comprising, in combination:
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a fryer including a vat for containing shortening therein; a temperature sensor to detect a temperature of shortening in the vat; a heat exchanger having a gas burner for supplying heat to a cooking zone of the vat at a full output level whenever the temperature sensor detects a temperature below a setpoint temperature; and an electric heating element for supplying heat to the cooking zone of the vat only after the heat exchanger has initially heated shortening in the vat to the setpoint temperature. - View Dependent Claims (12, 13, 14, 15)
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16. A method of operating a heating system for a fryer comprising the steps of:
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placing a quantity of shortening within a fryer vat; sensing the temperature of the shortening by means of a temperature sensor; activating a first heating means to produce heat at a full output level until the temperature sensed by the temperature sensor reaches a setpoint temperature and whenever the temperature sensed by the temperature sensor falls below the setpoint temperature; activating a second heating means only after the shortening has initially reached the setpoint temperature when the temperature sensed by the temperature sensor falls below a predetermined minimum temperature which is below the setpoint temperature; and deactivating the second heating means when the temperature sensed by the temperature sensor reaches a predetermined maximum temperature which is above the minimum temperature and below the setpoint temperature. - View Dependent Claims (17, 18, 19)
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Specification