...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8158912 | Fan apparency arrangement for an appliance A fan apparency arrangement for an appliance is disclosed. The fan apparency arrangement includes a chamber having a port; a fan in the chamber for moving air out of the chamber, the fan having a discharge end, and an intake end having an intake tube; and a sail swi... | 04/17/2012 |
| 8138452 | Convection oven A convection system for an oven comprising a baffle defining a single heating chamber mounted within a cavity of the oven, a heating element located within the single heating chamber for heating air within the heating chamber, and at least two fans located within th... | 03/20/2012 |
| 8138453 | Electric oven with multiple broil heaters and method for preheating the electric oven A electric oven is provided that includes a body, a cooking chamber located within the body for receiving food, the cooking chamber having an upper surface, a lower surface, and a rear surface joining the upper surface to the lower surface, at least one of a convect... | 03/20/2012 |
| 8134101 | Food container One embodiment of the disclosure relates to a heated food container including an interior chamber with an upper portion, a lower portion, and a wall defining an opening into the interior chamber. The opening is configured to permit the movement of food into and/or o... | 03/13/2012 |
| 8106334 | Electric oven having convection cover formed with sub-outlets An electric oven having a convection heater and a convection cover. The convection cover including a main outlet located at or near the periphery of the convection cover, and a sub-outlet, more centrally located near the convection heater relative to the main outlet... | 01/31/2012 |
| 8101891 | Cooking aparatus A cooking apparatus including a cooking chamber that has an opening, a door configured to open and close the opening of the cooking chamber, in which the door has an air-gap to receive pollutants generated in the cooking chamber, and a pollutant discharging unit con... | 01/24/2012 |
| 8097833 | Convection cooking in multi-fan convection oven A cooking appliance includes an oven provided with bake, broil and multiple convection heating elements, as well as plural, multi-speed fans, for cooking a wide range of food. The appliance can perform multiple, distinct cooking operations, preferably including a ba... | 01/17/2012 |
| 8076616 | Cook and hold system and method with ribbed tray A cook and hold system having an oven, a food warmer and a metallic food tray. The metallic food tray is used in the oven to hold the food products during cooking and then is rapidly transferred to the food warmer for holding. The food warmer has doors that cover th... | 12/13/2011 |
| 8071917 | Cooking oven for foods with variable speed electric fan and device for regulating the speed with heat recovery A cooking oven for foods is described, comprising a cooking chamber, a variable speed electric fan arranged for generating forced ventilation of the air inside the chamber, a regulating system for regulating the speed of the motor of the electric fan including at le... | 12/06/2011 |
| 8063342 | Cooking oven A cooking structure which provide for two or more side-by-side ovens separated by vertical, movable, hinged partition(s) whereby the oven structure may function as one large oven or as two or more smaller independent ovens, wherein for each oven a tangential fan blo... | 11/22/2011 |
| 8058588 | Electronically controlled warmer drawer An electronically controlled warmer drawer that supports a plurality of products, e.g., towels, in a drawer that is attached to a housing is disclosed. The housing includes a plurality of flow paths constructed to facilitate the passage of a heated gas flow through ... | 11/15/2011 |
| 8035062 | Combination speed cooking oven A combination cooking oven is disclosed comprising a cooking cavity, a controller, thermal heating source, blower assembly, air directing means, deflecting means and a vent assembly wherein speed cooking or slower cooking of food products may be accomplished within ... | 10/11/2011 |
| 8017889 | Radiant convection baffle for ovens A baffle that can be used in an oven includes, according to one embodiment, a fan, a catalyst, a heater between the fan and the catalyst, and/or a support structure. The support structure supports the fan, the catalyst, and/or the heater. The fan is arranged to circ... | 09/13/2011 |
| 7964823 | Wall oven and corresponding method In an embodiment, a wall oven has a cooking cavity surrounded by a baffled cavity. The wall oven has a door for restricting access to the cooking cavity. A control cavity has a front surface maintaining controls for operation of the wall oven. An exhaust fan is in f... | 06/21/2011 |
| 7910861 | Cooking device A cooking device including a cooking cavity, a fan located in the cooking device, the fan being configured to force air into the cooking cavity, and at least one optical heater to supply optical wave energy to heat the forced air provided by the fan. ... | 03/22/2011 |
| 7759614 | Method and apparatus for the treatment of a component Apparatus, for the localised treatment of part of a blade (14), comprises an enclosure (16) that is placed in a spaced relationship around the blade (14). Nozzles (20) extend through the enclosure (16) and direct a flow of gas onto... | 07/20/2010 |
| 7692119 | Reflow furnace In the first buffering area provided between the inlet of the furnace and the heating chamber, the ambient gas is blown to the printed circuit board from the lower side of the carrier device, while the ambient gas is sucked in the upper side of the carrier device, t... | 04/06/2010 |
| 7642488 | Electric oven An electric oven includes a cooking cavity surrounded by an inner case and being openable by a door; a first heater for heating the cooking cavity; at least one supplemental heater for heating the cooking cavity; and a controller operating the first heater to genera... | 01/05/2010 |
| 7601932 | Oven A dual-mode oven (40) which is capable of being used in a rotisserie mode or in a convection mode, the oven comprising heater means (8) and fan means (7), the heater means and the fan means being located at the top of the oven cavity (43)... | 10/13/2009 |
| 7547862 | Electric oven An electric oven includes a housing having a cooking chamber for cooking food and a component chamber containing components for operating the electric oven. A door is provided on a front of the housing for selectively opening and closing the cooking chamber. A sucti... | 06/16/2009 |
| 7491914 | Electric oven An electric oven is provided. The electric oven includes a chamber, a heater that heats air in the chamber and a flow guide defining a cooking space for food therein. The flow guide uniformly transfers heated air in the chamber to the food in the cooking space. The ... | 02/17/2009 |
| 7488919 | Warming apparatus An electronically controlled warmer drawer includes an enclosure having sides and a top and a bottom defining a chamber. A movable holder is coupled to the enclosure for movement between a retracted position to support objects within the chamber and an extended posi... | 02/10/2009 |
| 7468496 | Dynamic flow oven cavity vent A cooking appliance includes a main cavity and a ventilation system. A cavity vent extends between the cooking appliance and the ventilation system such that the ventilation system is in fluid communication with the main cavity to expel an exhaust of gases. A chimne... | 12/23/2008 |
| 7468495 | Multi-mode convection oven with flow control baffles An airflow control system for an oven having an oven cavity and a fan having a first operating mode for generating a first flow of air and a second operating mode for generating a second flow of air is provided. A baffle is included adjacent the fan to direct the fi... | 12/23/2008 |
| 7442901 | Electric oven and method of operating the same An electric oven includes an oven body, a first convection system having a first convection heater and a first convection fan that are installed in the oven body to operate for a first space in the oven body, and a second convection system having a second convection... | 10/28/2008 |
| 7425688 | Heating assembly for a tumble dryer A heating assembly for heating a hot air stream flowing in a flow passage of a tumble dryer. The heating assembly is configured for installation in the flow passage and comprises at least one heating element and at least one temperature sensor. The heating element i... | 09/16/2008 |
| 7416574 | Filter apparatus, exposure apparatus, and device-producing method A filter apparatus for improving gas temperature stability while maintaining a high impurity removal capacity. The filter apparatus includes a filter for removing impurities from a gas and a temperature adjuster for adjusting the temperature of the gas to a predeter... | 08/26/2008 |
| 7414223 | Method and apparatus for monitoring safety glass production or controlling a treatment process The invention relates to a method and apparatus for monitoring safety glass production or controlling a treatment process, such as a tempering process. Information representing a load of glass panels is used in controlling a treatment process, such as heating of gla... | 08/19/2008 |
| 7411159 | Device and method for the heating of food The invention relates to a device for heating food comprising a frame, a pan or basket having an opening into which the food to be heated can be placed, which pan or basket can be coupled to the frame by means of coupling means and in which the frame comprises a hea... | 08/12/2008 |
| 7411160 | Airflow system for a convection oven A convection cooking appliance includes a convection fan for establishing a convection airflow which is heated by a heating element including first and second sections that are symmetrically disposed about the convection fan substantially parallel to and downstream ... | 08/12/2008 |
| 7381930 | Reminder for convection cooking Provided is a cooking appliance, such as a convection cooking appliance. The appliance includes a heating element, an annunciator, and a user interface for receiving a plurality of control settings from a user. The control settings include a time setting. The applia... | 06/03/2008 |
| 7378617 | Heating systems and methods for a cooking appliance A heating system for a cooking appliance includes a first upper heating element and a second upper heating element positioned within a cooking cavity defined by a cabinet of the cooking appliance. The cooking cavity is configured to support a food item therein durin... | 05/27/2008 |
| 7371999 | Temperature changing apparatus having a rotating air deflector A temperature changing apparatus including a chamber defining a cavity is configured to receive a food product therein. A radially exhausting fan disposed in the cavity circulates air in the cavity over the food product. An air deflector disrupts the air radially ex... | 05/13/2008 |
| 7370647 | Ovens with catalytic converters An oven comprises: a cooking chamber defined by chamber walls; a baffle plate mounted within the cooking chamber for directing the flow of air within the cooking chamber, said baffle plate being provided with at le... | 05/13/2008 |
| 7372000 | Air control for a brick oven A food cooking oven has a front door, a back wall opposite the front door, and two side walls connecting the front door to the back wall. The oven also has a rear divider parallel to and spaced apart from the back wall, the rear divider running between the side wall... | 05/13/2008 |
| 7368684 | Cooking device A cooking device includes a cabinet, a cavity installed in the cabinet and having a cooking chamber therein, a door installed at the cabinet to open and close the cooking chamber, a ventilation passage formed to allow external air of the cabinet to pass through betw... | 05/06/2008 |
| 7368683 | Convection chamber of cooking device A convection chamber of a cooking device includes a convection fan rotatably installed in a cooking chamber, a convection motor that rotates the convection fan, a convection cover provided in front of the convection fan and having a channel that collects air in the ... | 05/06/2008 |
| 7364762 | Food heating Food heating method and apparatus using containing means, e.g., a pre-formed container 1, such as a relatively flat pouch or envelope comprising at least one panel made of flexible multilayer film with layers 3 and 5 of Perfluoralkoxy (PFA) and ... | 04/29/2008 |
| 7365287 | Vertical electrically heated oven for baking coated parts An oven for baking a batch of parts has a housing having side walls and a top wall defining a closed container with a closed top end and an open downwardly facing bottom end. Loading/unloading occurs at the bottom end onto a carriage raised to the top end where baki... | 04/29/2008 |
| 7361208 | Chromatography oven with heat exchange and method of use Methods and systems for cooling gas chromatography ovens that comprise a housing having a fluid entry and a sleeve positioned within the housing to provide a fluid gap between the inner surface of the housing and the outer surface of the sleeve, where the sleeve is ... | 04/22/2008 |