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Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 8003924 | Cooking appliance A cooking appliance includes at least one heating element; a heat sink connected to the heating element, to radiate heat generated by the heating element; a cooling fan located at one side of the heat sink, to blow cooling air to the heat sink; and a flow guide cove... | 08/23/2011 |
| 8003925 | Induction heating cooking apparatus Waste heat of a high temperature inside a main body is designed to be discharged to the outside of the main body by means of a discharge fan through a first suction air flow passage and a first discharge air flow passage. Also, through a second air flow passage comm... | 08/23/2011 |
| 7786414 | Induction heating device and hob having such an induction heating device An induction heating device for a glass ceramic hob or cooktop is embodied as an autonomous component. Said induction heating device comprises a bearing device which, in addition to the induction coil, supports a component support comprising power electronics and co... | 08/31/2010 |
| 7687748 | Induction cook top system with integrated ventilator An indoor or outdoor induction cook top system with integrated downdraft or telescoping ventilator uses cross flow or centrifugal blower technology. The system is controlled by an electronic or mechanical controller through a touch device, a slide, or knob. These pr... | 03/30/2010 |
| 7390994 | Electric cooker having a composite heat source An electric cooker having a composite heat source includes an external case having an air inlet and an air outlet, a cooking plate mounted on an upper surface of the external case to be a top plate thereof, a heat generating unit mounted between the external case an... | 06/24/2008 |
| 7227106 | Modular grill cooker and multipurpose cooking apparatus having the same A modular grill cooker that is easily installed in a multipurpose cooking apparatus, including an outer casing and an inner casing set in the outer casing. A heating unit is mounted to a heat reflecting plate fastened to the inner casing. A grilling unit is seated o... | 06/05/2007 |
| 7221858 | Pulse-width modulation motor speed control circuit A PWM motor speed control circuit (10) includes a PWM signal generator (20), a driver integrated circuit (IC) (101) and a photocoupler (30) coupled between the PWM signal generator and the driver IC. The photocoupler receives an original ... | 05/22/2007 |
| 7148452 | Heat sink for printed circuit board components The present invention provides a heat sink for cooling a component. The component may be one of several components on a circuit board. The heat sink includes a tubular body and a plurality of internal fins. The tubular body has an interior surface and an exterior su... | 12/12/2006 |
| 7135661 | Induction heating cooker with horizontal exhaust passage An induction heating cooker with improved discharge capability and cooling performance comprises a cooking plate 200 formed with a cooking vessel thereon; a cooking body 310 coupled to the cooking plate 200 to define a receiving space 311... | 11/14/2006 |
| 7049552 | Ventilation system for a cooking appliance A cooking appliance includes a frame having a bottom wall for supporting heating elements and a peripheral side portion that extends from and about an outer periphery of the bottom wall so as to define a chassis upon which is arranged a cooktop. The peripheral side ... | 05/23/2006 |
| 7026587 | Composite cooking apparatus A composite cooking apparatus having a body, a heating unit, and an induction heating unit. The heating unit is positioned in the body to generate heat used to heat food. The induction heating unit is positioned adjacent to the heating unit to generate a magnetic fi... | 04/11/2006 |
| 6903309 | Cooking appliance having concealed cooking feature A cooking appliance shown in the form of a cooktop includes a upper cooking zone and a concealed lower cooking zone. The upper cooking is defined by a pivotally mounted frame portion within which is arranged a plurality of heating elements. Located below the upper c... | 06/07/2005 |
| 6121591 | Flux guiding and cooling arrangements for induction heating units A core structure for induction heating apparatus consists of radially disposed core parts carrying cylindrical coils for energization. The core parts join the outer end to form a rim and at the center to form a central pole.... | 09/19/2000 |
| 5821507 | Electric cooker using induction heater An electric cooker is provided, which can grill foods by heat rays from a metal heating member using induction heating and is hardly affected by drops from the foods. This electric cooker comprises a work coil wound in a substantially pipe-like shape for ... | 10/13/1998 |
| 5446268 | Heat radiating device of induction heater The heat radiating device of an induction heater comprises a body, a heat radiating unit, and a ventilating unit. The body comprises a bottom housing provided at the front end thereof with a plurality of air admitting holes. The heat radiating unit is mou... | 08/29/1995 |
| 5428207 | Inductive based cooking system An induction based point heating system for cooking utensils or the like contains induction coils positioned below a plate, e.g. a glass ceramic plate. It is constructed as a cohesive component and includes induction generating means and the associated po... | 06/27/1995 |
| 5408073 | Overheat prevention circuit for electromagnetic induction heating cooker An overheat prevention circuit for an electromagnetic induction heating cooker. The electromagnetic induction heating cooker has a heating coil, a top plate disposed over the heating coil, on which an object to be heated is laid, a temperature sensing par... | 04/18/1995 |
| 5239916 | Watercool electromagnetic induction heating wok A watercool electromagnetic induction heating wok comprises a power control unit connecting to an outlet of power, an induction coil composed of a hollow tube encircled to connect to the power control unit, of which cool water is filled, a cyclic watercoo... | 08/31/1993 |
| 5019682 | Separable electrical cooker An electronics cooker of a separating type comprises a heating portion mounted on the upper of the cooker body and provided with at least one oven having the heating coil, an adjusting portion mounted adjacent to the heating portion with the air ventilati... | 05/28/1991 |
| 4899027 | Double-effect table with heating and cooling purposes A double-effect table, especially a dining table includes a cooling fan formed in a foot stand supporting an upper table plate for blowing cooling air radially outwardly for evenly cooling people sitting around the table, and an electromagnetic oven capab... | 02/06/1990 |
| 4899028 | Suction and exhaust system of a heat cooking apparatus According to the electromagnetic cooking apparatus of the present invention, a ventilation hole, through which air after cooling an interior compartment of the main casing of the cooking apparatus is exhausted, communicates with the exhaust passage of the... | 02/06/1990 |
| 4665893 | Kitchen unit cooking stove having internal cooling system A cooking stove such as an induction heating cooking stove which is fitted into an aperture on top of a kitchen unit has one or more independent heater units mounted within an outer case, below a top plate which cooking pans, etc can be heated. Each heate... | 05/19/1987 |
| 4551600 | Ventilated cooking appliance unit A cooking appliance unit including a top plate on which food items are cooked, a horizontal frame formed around the outer periphery of the top plate, having inlet and outlet ventilation holes on only one side thereof, and a cooking appliance body below th... | 11/05/1985 |
| 4549052 | Cooling system for an induction cooking cartridge An induction cooking cartridge is disclosed which includes an internal fan for cooling the various induction heating components. The cooking cartridge is constructed so that a unique airflow path is defined with cooling airflow entering the mounting reces... | 10/22/1985 |
| 4490596 | Induction cooking apparatus having cooling arrangement therefor An induction cooking apparatus having a plurality of induction heating coils disposed in an array for induction-heating a metallic heating load by electromagnetic induction. Air inlet ports are formed at the front end of the appliance to admit cooling air... | 12/25/1984 |
| 4468548 | Composite cooking apparatus A first casing provided with an induction coil and a top plate as a first heater at the top thereof and a second casing provided with an electric heater as a second heater at the top thereof are hinged by a shaft and hinges such that the second casing can... | 08/28/1984 |
| 4431892 | Ventilated modular cooktop cartridge The electronic components in the cavity of a modular induction cooktop cartridge are cooled as a result of ventilation provided by a proximity ventilation system. The cooktop cartridge is raised relative to the surface of the range and ports are provided ... | 02/14/1984 |
| 4415788 | Induction cartridge A modular induction cooktop cartridge contains a fan which is interlocked with the panel switches so that whenever an induction unit is operative, air is drawn into the cartridge to cool the solid state electronic components. Air is exhausted in a high ve... | 11/15/1983 |
| 4191875 | Fan speed control used in induction cooking apparatus A cooking apparatus employing induction heating is normally constructed so as to utilize a metal housing supporting a cook top upon which there is located at least one induction heating coil. The housing normally contains an electronic "package" for use i... | 03/04/1980 |
| 4151387 | Metal base cookware induction heating apparatus having improved power control circuit for insuring safe operation A metal based cookware induction heating apparatus having an improved power supply and control circuit comprised of a chopper inverter including a gate controlled power thyristor coupled to and supplying an induction heating coil with periodic energizatio... | 04/24/1979 |
| 4038518 | Dining table combined with food warming apparatus A dining table which automatically maintains food at an optimum temperature all the while the food is on the table. Disposed beneath the table top, which permits flux linkage therethrough, is apparatus which generates one or more electromagnetic fields wi... | 07/26/1977 |
