...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8084723 | Method for detecting a fire condition in a cooking chamber of a baking oven A method for detecting a fire condition in a cooking chamber of a baking oven. The method includes measuring the oxygen concentration in the baking oven and also using an evaluation circuit of an electronic controller to determine the rate of change of the oxygen. T... | 12/27/2011 |
| 7315012 | Microwave baking furnace To provide a microwave baking furnace in which an inner wall which constitutes a heating element partitioning a baking chamber is prevented from being damaged due to a thermal shock, and the life time thereof can be extended. A microwave baking furnace 31 | 01/01/2008 |
| 7267833 | Apparatus and method of automatic cooking of buckwheat An apparatus and a method automatically cook food, for example, a hulled grain such as buckwheat, thereby conveniently providing the uniform and optimal cooking quality of the food to a user. The cooking apparatus includes a cooking cavity that contains food to be c... | 09/11/2007 |
| 7164106 | Toaster-cum-microwave oven having a humidity measuring device A toaster-cum-microwave oven includes a toasting chamber, a heating device, a humidity measuring device for measuring an inside humidity of the toasting chamber and producing a humidity signal indicating the measured inside humidity, a switching device for selective... | 01/16/2007 |
| 7135662 | Method and apparatus for controlling microwave oven A method and apparatus for controlling the operation of a microwave oven, including a magnetron generating microwaves and a sensor sensing the state of air in the cooking cavity of the oven. The cooking period is determined by searching one of two data tables in acc... | 11/14/2006 |
| 7077055 | Steaming device for oven A steaming device for an oven including a water supply unit for supplying drinking water, a boiler chamber for heating the drinking water supplied from the water supply unit while performing a secondary heating operation for heating steam flowing through a main stea... | 07/18/2006 |
| 7075041 | Method for controlling a cooking process in a cooking appliance and cooking appliance A method for controlling a cooking process in a cooking appliance having a sensor for measuring a gas concentration in the cooking chamber and an electric or electronic control system in communication with the sensor and including an evaluation circuit and a memory,... | 07/11/2006 |
| 7053347 | Microwave oven and control method thereof A microwave oven, having a humidity sensor and a voltage detecting unit for detecting a change in an output voltage of the humidity sensor, includes: a control unit for receiving a compensated voltage according to a change in temperature supplied from the humidity s... | 05/30/2006 |
| 7022958 | High frequency heating apparatus A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating ... | 04/04/2006 |
| 6977487 | Vehicular alternator failure determination apparatus using commutating device voltage A vehicular alternator failure determination apparatus is capable of making a failure determination accurately. The apparatus includes a maximum voltage detection part (1) for detecting a maximum voltage of an alternator commutating device which commutates an... | 12/20/2005 |
| 6974937 | Apparatus and method for exhausting pollutant in microwave oven Disclosed is an apparatus for exhausting pollutant for a microwave oven, the apparatus comprising: a sensor part formed at a predetermined portion of the microwave oven, for detecting fumes and/or moisture contained in polluted air generated during a cooking process... | 12/13/2005 |
| 6963058 | Microwave oven systems and methods A simmering method includes energizing a generator of an oven to raise humidity inside a chamber of the oven to a first level, and performing a simmering operation for a first predetermined amount of time after the humidity reaches the first level, the simmering ope... | 11/08/2005 |
| 6953921 | Bolometric humidity sensor and cooker using the same and method for controlling the cooker A bolometric humidity sensor, cooker having the same applied thereto, and method for controlling the cooker are provided. The bolometric humidity sensor has two static bolometric temperature sensors for detecting humidity more accurately. A cooker may have such a bo... | 10/11/2005 |
| 6953919 | RFID-controlled smart range and method of cooking and heating A system and method for providing multiple cooking modes and an ability to automatically heat cooking vessels and other objects using RFID technology, and an ability to read and write heating instructions and to interactively assist in their execution. An induction ... | 10/11/2005 |
| 6909078 | Cooking chamber assembly in microwave oven A cooking chamber assembly in a microwave oven for improved which improves air tightness in the cooking chamber, and reduces assembly complexity, time, and cost. A tray which essentially forms a bottom surface of a cooking chamber of the microwave oven is surrounded... | 06/21/2005 |
| 6884449 | Microwave oven having rice cooking function and method of controlling the same A method for controlling a rice cooking operation in a microwave oven including setting up at least one rice cooking operation in the microwave oven based upon the amount of rice and water mixture; heating the rice and the water in a cooking chamber using a magnetro... | 04/26/2005 |
| 6881936 | Apparatus and method for automatically cooking fruit An apparatus and a method implement automatic cooking, which may automatically cook compote, thus conveniently providing the uniform and optimal cooking quality of compote to a user. The cooking apparatus includes a cooking cavity that contains food to be cooked and... | 04/19/2005 |
| 6878912 | Method of controlling microwave oven A method of controlling a microwave oven, in which the microwave oven includes a cooking chamber for containing food therein, a cooling fan which circulates air, a magnetron which generates microwaves and a humidity sensor which senses humidity of the cooking chambe... | 04/12/2005 |
| 6878913 | Method of controlling microwave oven A method of controlling a microwave oven, in which the microwave oven includes a cooking chamber for containing food therein, a cooling fan which circulates air, a magnetron which generates microwaves and a humidity sensor which senses humidity of the cooking chambe... | 04/12/2005 |
| 6875968 | Method of controlling microwave oven A method of controlling a microwave oven, in which the microwave oven includes a cooking chamber for containing food therein, a cooling fan which circulates air, a magnetron which generates microwaves and a humidity sensor which senses humidity of the cooking chambe... | 04/05/2005 |
| 6875969 | Microwave oven and method of controlling the same A microwave oven includes a control unit which sets sampling intervals to accumulate humidity values measured by a humidity sensor, and controls a cooking end time of food according to an accumulated humidity value obtained by accumulating the humidity values measur... | 04/05/2005 |
| 6867403 | Apparatus and method for automatic cooking An apparatus and a method automatically cook food, for example, millet, thus conveniently providing the uniform and optimal cooking quality of food to a user. The cooking apparatus includes a cooking cavity that contains food to be cooked and water therein, and a he... | 03/15/2005 |
| 6835920 | Microwave oven A microwave oven includes a magnetron to generate microwaves and a cooking chamber to contain food to be cooked using the generated microwaves. The microwave oven further includes a humidity detector to detect moisture formed from the food being cooked. The humidity... | 12/28/2004 |
| 6806449 | Apparatus and method of controlling a microwave oven An apparatus and a method of controlling a microwave oven includes performing a first heating until detection values of a humidity sensor reach a reference value, wherein the humidity sensor senses humidity of water vapor discharged from a cooking chamber. A second ... | 10/19/2004 |
| 6791070 | Simmering control method in microwave oven A method of performing a simmer cooking operation in a microwave oven is based on detected levels of humidity from a sensor and an algorithm automatically calculating a cooking time such that a desired cooking operation is optimally performed. A third heating operat... | 09/14/2004 |
| 6787743 | Apparatus for the production of ginkgo leaf tea Ginkgo leaves contain many beneficial chemicals which can be transferred into a preparation of tea. However, the leaves contain 2-hexenal, a chemical which is toxic and has an unpleasant taste. Therefore, removal of the 2-hexenal is an essential step for the tea pro... | 09/07/2004 |
| 6774347 | Microwave oven with humidity sensor A microwave oven includes a humidity sensor, a main-outlet and a sub-outlet formed at opposite sidewalls of a cooking cavity such that the cooking cavity communicates with the atmosphere through the main-outlet and the sub-outlet. The sub-outlet is installed in a ma... | 08/10/2004 |
| 6689996 | Microwave oven and method of controlling thereof A microwave oven having an improved air outlet and humidity sensor mounting structure includes a body partitioned in its interior into a cooking cavity and a machine room, and a cooling fan installed in the machine room which draws atmospheric air into th... | 02/10/2004 |
| 6670591 | Microwave oven A microwave oven performs a cooking operation in one of several cooking modes having a first cooking time period and a second cooking time period. The first cooking time period is determined in accordance with an output value of a sensor which senses a st... | 12/30/2003 |
| 6642491 | Microwave oven and controlling of the same A process for controlling a cooking operation in a microwave oven as well as a microwave oven therefor. Subsequent to a heating step at full power for bringing cooking liquid to the boil, foodstuff which is to be cooked is added, whereupon continued moist... | 11/04/2003 |
| 6578569 | Control or regulating device for a stove and method for control A control or regulating device of a stove influences (activates, deactivates, controls, regulates) the heat energy of at least one cooking zone of the stove in dependence upon cooking steam. The control device or a sensor device of the control device can ... | 06/17/2003 |
| 6546646 | Method and apparatus for microwave processing of planar materials A process and apparatus for removing moisture from a material, without spoiling the processed product, through the implementation of microwave irradiation heating, drying, dehydration, curing, disinfection, pasteurization, sterilization or vaporization or... | 04/15/2003 |
| 6538240 | Method and apparatus for controlling a microwave oven A microwave oven, and method of controlling the same, including a magnetron generating high-frequency waves and a sensor detecting the environmental state of air in a cooking cavity. During a first cooking time, outputs of the sensor are sampled at predet... | 03/25/2003 |
| 6401357 | End of cycle detector and method for microwave clothes dryer End of cycle detector and method for a microwave clothes dryer. The temperature of fabric in the dryer is monitored, an increase in the monitored temperature is detected when substantially all moisture has been removed from the fabric, and operation of th... | 06/11/2002 |
| 6346693 | Selective heating of agricultural products A grain containment vessel equipped with one or more antennas and a vapor extraction system is disclosed. An electromagnetic heating pattern is established throughout the grain volume elevating the bulk temperature, while an air flow is applied throughout... | 02/12/2002 |
| 6247246 | Microwave moisture analyzer: apparatus and method A toploading weighing instrumentality which determines loss on drying by a cylindrical microwave. The cylindrical cavity of the microwave includes a power supply, a magnetron, a power module operatively coupled between said power supply and said magnetron... | 06/19/2001 |
| 6247395 | High-frequency thawing apparatus An object of a high-frequency thawing apparatus is to uniformly thaw an entirety of an article with high efficiency and high-speed, particularly an article having a relatively large thickness. The apparatus is so constructed that a high-frequency power fr... | 06/19/2001 |
| 6127666 | Cooling device for halogen lamp in microwave ovens A cooling device for halogen lamps in microwave ovens is disclosed. In the cooling device, two halogen lamps, installed on the top wall of the cavity, radiate light waves into a cavity. A cooling fan assembly, provided at a position around the halogen lam... | 10/03/2000 |
| 6078034 | Method for controlling power of an electronic oven and associated device The method is for the control of an electrical oven and includes taking into account the temperature and/or the humidity level of the air measured by sensors in the interior of a cavity of an oven in which food to be heated and/or cooked is placed. The in... | 06/20/2000 |
| 6051824 | Wet prevention apparatus for sensor of microwave oven A wet prevention apparatus for a sensor of a microwave oven is disclosed, which prevents wet from occurring in a sensor for use in a microwave oven without a separate driving gear. In a microwave oven including a cooking chamber, and a machine chamber iso... | 04/18/2000 |