Temperature control for a toaster oven
Patent 6198078 Issued on March 6, 2001. Estimated Expiration Date: 
January 11, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 11, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectronic toaster control Preheat timer for use in oven Device for electronic control of the supply of a heating resistance Patent #: 4978838 InventorsAssigneeApplicationNo. 481066 filed on 01/11/2000US Classes:219/492, Comprising timing or cycling means99/328, And heat responsive means99/329R, By heat responsive means219/497, Comprising voltage and/or current measuring and comparing or combining means219/501, Including semiconductor means (e.g., transistor)219/514, With solenoid means219/518Responsive to weight, position, or presence of body to be heatedExaminersPrimary: Paschall, Mark H.Attorney, Agent or FirmInternational ClassH05B 001/02AbstractA toaster broiler oven with an NTC temperature probe located within the oven chamber and a controller that controls the heater of the oven in a thermostat operation for non-toasting modes and in a variable toasting interval length operation in the toasting mode. When the toaster start switch is activated in the toast mode, the controller determines if the oven chamber temperature is greater than a predetermined temperature, such as room temperature. If not, a first toast interval is selected. If so, a second shorter toast interval is selected. The length of the second interval is chosen so that the toaster oven consistently produces toast of a selected color from one toast cycle to the next, regardless of the elapsed time between consecutive toast cycles.Field of SearchComprising timing or cycling meansComprising voltage and/or current measuring and comparing or combining means Electromechanical Including semiconductor means (e.g., transistor) Comprising nonlinear or negative temperature coefficient resistance means Plural means intermittently or selectively operated Responsive to weight, position, or presence of body to be heated With solenoid means Thermally responsive And heat responsive means By heat responsive means Relative movement, toast and support | |
