Abstract: A cooktop appliance or heating coil assembly may include a heating element, a shroud cover, a thermostat, and a spring bracket. The shroud cover may be disposed within the heating element. The shroud cover may include a top wall defining an upper surface and a lower surface. The thermostat may extend vertically between a distal end and an interior end below the distal end. The distal end may be disposed against the shroud cover at the lower surface. The thermostat may be connected in series between the first and second coil sections of the spiral wound sheathed heating element. The spring bracket may be disposed against the shroud cover at the lower surface and bias the shroud cover upward.

Abstract: A cooktop appliance or electric resistance heating coil assembly, as provided herein, may include a shroud cover, a thermostat, and a heat transfer disk. The shroud cover may define an axial hole. The thermostat may be positioned radially inward from the shroud cover. A continuous circumferential thermal break may be defined as a radial gap within the axial hole between the thermostat and the shroud cover. The heat transfer disk may be attached to the thermostat at the distal end of the thermostat and extend radially outward above the shroud cover.

Abstract: An electric resistance heating coil assembly includes a spiral wound sheathed heating element having a first coil section and a second coil section. A bimetallic thermostat is connected in series between the first and second coil sections of the spiral wound sheathed heating element. The bimetallic thermostat is spring loaded such that a distal end of the bimetallic thermostat is urged away from a top surface of the spiral wound sheathed heating element. A heat transfer disk is positioned on the bimetallic thermostat at the distal end of the bimetallic thermostat.

Abstract: A packaging machine of the type that is used to hand-wrap a package with a stretchable film that is heat-fused/sealed. The machine includes a supply of film for wrapping a package and a hot plate mechanism for heat fusing the film after the package is wrapped. The hot plate mechanism includes a fever arm that moves a sealing platform from a raised position to a lowered, heat sealing position when the package is placed on the platform. A control circuit energizes a heating element forming part of the sealing platform and causes it to reach a desired heating temperature in 2 to 4 seconds, whereby fusing of the sealing film is achieved. An interval timer is used to control a signaling device such as a light to Indicate the machine is in a heating cycle. A separate timer, in conjunction with a temperature sensing thermistor, controls a length of time the heating element is energized and terminates power to the heating element prior to the end of a sealing Interval if a predetermined temperature is exceeded.

Abstract: A device for limiting the temperature of cookware on a cooktop to a threshold level that corresponds to an oil ignition temperature. The device includes a temperature sensor that is positioned adjacent a bottom of the cookware on the cooktop. A control device in combination with each of the temperature sensor and the cooktop monitors the temperature and adjusts a heating element of the cooktop as needed to avoid cooking oil ignition. The temperature sensor can be a spring loaded temperature sensor to ensure and/or absorb contact with the cookware.

Abstract: The invention relates to a method and a circuit arrangement for preventing overheating of a cooking appliance. The arrangement includes a power circuit with a heating element and a control circuit with a coupling switch. The control circuit and the power circuit are coupled by the coupling switch. The arrangement further includes a safety switch to the control circuit. The coupling switch interrupts a power supply to the power circuit to the heating element when a limiting temperature in the cooking appliance is exceeded.

Abstract: The electric radiant heater (1) adapted to a cooking hob is attached to the cooking plate (2a) forming with it an air cavity (13) inside which the extended heating resistor (5) is housed on an insulating base (4). A peripheral insulating ring (6) and an outer metal tray form a peripheral external wall (3,6) defining said cavity (13) in which there is positioned a bimetal thermal switch (7), which has a compact body (7a) resting on the surface (4a) of the insulating base, and a heat receiver base (7b) in a position facing a part of the heating resistor (5). The position of the compact body (7a) relative to the heating resistor (5) is determined so as to obtain an actuating temperature point (SWC, SWO) adjusted for switching a hotplate warning light on and off.

Abstract: A description is given of a temperature detection device for an electric radiant heater, with which is associated an active sensor for detecting the positioning of a cooking vessel on a hotplate, particularly a glass ceramic plate, covering the radiant heater. This sensor is part of an inductive resonant circuit of a control means and preferably has a single sensor loop of electrically conductive material located in the vicinity of at least one heating zone heatable by electric radiant elements and preferably partly overlapping the same. According to the invention, with at least one portion the sensor loop forms a functional element of a temperature sensor of the temperature detection device. For example, a tubular sensor loop portion can serve as a supporting or protective jacket of a jacket thermocouple.