...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 |
| 8074637 | High frequency heating apparatus having a range hood A high frequency heating apparatus with a range hood, which has an opening for exhausting air and a cover for closing the opening, includes a microcomputer control unit for controlling an automatic opening/closing operation of the cover, a control panel for setting ... | 12/13/2011 |
| 8066000 | Extendable hood for microwave oven positioned over the range or cook top An extendable hood and mounting bracket for mounting on the underside of a microwave oven which is positioned above a cook top, the extendable hood being frictionally engaged in the bracket and selectively removable or slidably retracted when not in use, the extenda... | 11/29/2011 |
| 8020549 | Self-aligning telescoping downdraft ventilator assembly A telescoping downdraft ventilator with a system for self-aligning a vent within a housing is provided. The telescoping downdraft ventilator of the present invention comprises a housing with a track, a vent sized to fit within the housing, a drive assembly that move... | 09/20/2011 |
| 7886735 | Drive mechanism for a down draft vent system The invention relates to a drive mechanism for a down draft vent system comprising a vertically directed, retractable open framework (4), which can be moved between an extended position and a lowered position by means of a drive motor (9), comprising a... | 02/15/2011 |
| 7836878 | Appliance heat isolation system for attachment to a vent hood An appliance heat isolation system for attachment to a vent hood has a mounting support with an upper mounting flange and a pair of curtain mounting rails that support the top side of a heat isolation curtain is disclosed. The curtain has front, back, right, left, t... | 11/23/2010 |
| 7823580 | Range hood apparatus and method Method and apparatus for a range hood. The apparatus can include a housing and a lighting and control unit moveably coupled to the housing. The lighting and control unit can include a user interface and one or more lights. The lighting and control unit can be couple... | 11/02/2010 |
| 7537003 | Built-in kitchen apparatus A kitchen apparatus body installed in a cabinet includes a heating chamber configured to carry out processing, such a high-frequency heating, on an object to be processed. The kitchen apparatus body includes an air supply unit configured to suck in cooling air, a fi... | 05/26/2009 |
| 7513248 | Appliance exhaust duct cover and method of assembling same An appliance vent duct cover includes a first cover portion, and a second cover portion including a plurality of openings, wherein the second cover portion is slidably coupled to the first cover portion such that the second cover portion is selectively positionable ... | 04/07/2009 |
| 7442119 | Ventilation device, particularly an exhaust hood with air flow control means Disclosed is an exhaust hood (10) comprising a drive unit (20) for generating an air flow, a control device or control circuit for controlling the drive unit (20), and a measurement section comprising a transmitter device (22) and a recei... | 10/28/2008 |
| 7375310 | Air flow system for circulating air in a microwave oven An air flow system in oven is provided. The structure includes: a cavity for housing food; a ventilation fan provided at an electronic equipment chamber outside of the cavity; a first intake port provided at a front and upper surface of the microwave oven; a lower b... | 05/20/2008 |
| 7338139 | Cabinet apparatus for kitchen utensils and appliances A cabinet apparatus for the efficient and safe organization, storage and use of kitchen appliances and utensils, particularly in a relatively small amount of space. The cabinet includes a bottom portion for holding a miniature refrigerator. A middle portion includes... | 03/04/2008 |
| 7332698 | Microwave oven A microwave oven including a component compartment and a cooking compartment each including a discharging part to discharge air in the cooking compartment through the cooking compartment through portion; a supplying fan introducing the air to the component compartme... | 02/19/2008 |
| 7332004 | Effluent filtering and containment apparatus An apparatus for filtering and containing grease or other effluent discharged from a drain spout of an exhaust fan includes a hollow housing and top and bottom portions covering each end thereof. A filter element disposed within the housing for filtering the effluen... | 02/19/2008 |
| 7329313 | Air cleaner An air cleaner includes a housing, a filter, a photocatalyst reaction unit which can form spiral a air flow, a forced convection device, and an electrocircuit controller. The forced convection device is located between the filter and the photocatalyst reaction unit.... | 02/12/2008 |
| 7326896 | Microwave oven A microwave oven including a component chamber penetrating part fluidly communicating with a component chamber, a cooking chamber penetrating part fluidly communicating with a cooking chamber, a discharging part discharging air within the cooking chamber through the... | 02/05/2008 |
| 7316179 | Carrier system for products to be cooked in a baking oven The invention relates to a carrier system for products to be cooked in a baking oven. Said system comprises at least one carrier for products to be cooked (5), at least one pair of telescoping slides (6) which respectively comprise at least one inner r... | 01/08/2008 |
| 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 |
| 7275533 | Pressure controller for a mechanical draft system Systems and method for controlling the flow of air through a mechanical draft system are disclosed herein. A pressure controller for controlling air pressure comprises an appliance controller configured to control the operation of a plurality of appliances, an intak... | 10/02/2007 |
| 7273049 | Dual motor kitchen range hood with perimeter air inlet A kitchen range hood for exhausting gases comprises an outer hood body within which a motor housing is mounted. The motor housing has top, bottom and perimeter side surfaces defining a pair of substantially similar air chambers, a motor and fan being housed in each ... | 09/25/2007 |
| 7263987 | Grill cooker with air cooling unit and multipurpose cooking apparatus having the same A grill cooker that efficiently cools a grilling unit to prevent food from sticking to the grilling unit, and a multipurpose cooking apparatus in which the grill cooker is installed. The grill cooker includes a grilling unit on an upper portion of a cabinet, an air ... | 09/04/2007 |
| 7261008 | Air sampler An air sampler having a fan; an air inlet tube; a main body having a cyclonic cup, a stripping column and a demister; and fluidic circuitry for inputting fluids to the main body and the air inlet tube, and for outputting fluids from the main body. Air flow through t... | 08/28/2007 |
| 7244283 | Filter assembly A grease filter assembly is provided for absorbing airborne grease discharged from a grease discharge vent extending from a roof. A support is mountable to the duct of the grease discharge vent and grease absorbing pads are supportable upon the support frame in stat... | 07/17/2007 |
| 7245105 | Single-phase induction motor and method for reducing noise in the same A single-phase induction motor and a method for reducing noise in the same, which can eliminate unbalance between magnetomotive forces of main and auxiliary windings in a stator of the motor, thereby implementing a low noise, low vibration motor, and can also achiev... | 07/17/2007 |
| 7198111 | Automotive vehicle with fire suppression system An automotive vehicle includes a vehicle body and at least one reservoir containing a fire suppressant agent. A distribution system receives the fire suppression agent from the reservoir and conducts the agent to at least one location about the vehicle's body in res... | 04/03/2007 |
| 7197788 | Range hood cleaning assembly A range hood cleaning assembly utilizes compressed air to drive accumulated grease on range hood surfaces towards drainage holes. A plurality of air dispensers, preferably air hoses and directional nozzles, through which compressed air from at least one source of co... | 04/03/2007 |
| 7191616 | Front suction/discharge type outdoor unit for air-conditioner and outdoor unit installation system using it The present invention discloses a front suction/discharge type outdoor unit for an air conditioner including: an outdoor unit casing being formed in a rectangular parallelepiped shape, having its one surface externally opened and its other surfaces closed, and being... | 03/20/2007 |
| 7193195 | Wall mounted microwave oven having a top vent with filter system A filter system for a wall mounted type microwave oven, which has an external enclosure surrounding an oven cavity. The external enclosure includes a bottom closure wall having a suction opening. The external enclosure also includes a top vent opening. An air exhaus... | 03/20/2007 |
| 7180041 | Over-the-range oven with guide grill The present invention relates to an over-the-range. The over-the-range including: a cavity having an electronic equipment chamber at one side, and within which cooking is performed; a door for opening and closing a cooking chamber within the cavity; a front grill pa... | 02/20/2007 |
| 7168425 | Cooking apparatus A cooking apparatus, which is provided with a cover having an air ventilation structure that ventilates air into and out of a cooking space to maintain a desirable temperature of the cooking space. Accordingly, the cooking apparatus has at least one heating unit, a ... | 01/30/2007 |
| 7140265 | Miniature particle and vapor collector An apparatus for collecting particles or vapor from air or surfaces comprising: a housing comprising an inlet open to the air to be sampled and an outlet; and a fan having one or more open areas within the housing capable of being driven at a speed effective to caus... | 11/28/2006 |
| 7138092 | Clip-mounted catalyst device A catalytic converter device for use with a device such as an oven is provided. The catalytic converter device includes a catalyst-coated ceramic substrate and a mounting ring. The mounting ring secures the ceramic substrate and is engagable with one or more surface... | 11/21/2006 |
| 7135663 | Wall mounted type microwave oven A wall mounted type microwave oven including an improved exhaust and cooling unit to allow a direction of an outlet of an exhaust fan casing or a cooling fan casing to change while retaining or reducing an original size thereof. The exhaust and cooling unit includes... | 11/14/2006 |
| 7104263 | Detergent supply system for a self-cleaning kitchen hood A detergent supply system for a kitchen hood has a mounting case perpendicularly attached to the kitchen hood, a detergent dispenser with a pump, a wastewater collector and a detergent reservoir mounted higher than the detergent dispenser is mounted. By mounting the... | 09/12/2006 |
| 7074250 | Air filtration unit An air filtration unit for use in a work environment includes a housing disposed with an air filtration system and light source. The housing includes a handle and corner caps to prevent damage and provide stability. The air filtration system draws air into the housi... | 07/11/2006 |
| 7049568 | Wall-mounted type microwave oven A wall-mounted type microwave oven includes an oven body having a cooking chamber and an electrical component compartment which are isolated from each other, an exhaust flow path which is extended between a bottom and a top of the oven body to exhaust gas positioned... | 05/23/2006 |
| 7048199 | Kitchen exhaust optimal temperature span system and method An exhaust control system (72) for a commercial or institutional kitchen exhaust system (32) is disclosed in which the exhaust fan speed is optimized for the amount of cooking heat and cooking by-product generated by the cooking units, as well as for c... | 05/23/2006 |
| 7037359 | Grease containment system A device, system, and method for collecting grease on rooftop exhaust fans, comprising a gasket formed of sorbent material. The gasket is dimensioned for placement between an exhaust fan and a base for the exhaust fan. When placed between the exhaust fan and the bas... | 05/02/2006 |
| 7034269 | Wall-mounted microwave oven A wall-mounted microwave oven is provided capable of performing an exhaust function irrespective of a folded state or an unfolded state of a guide plate while achieving an improvement in the exhaust function. The wall-mounted microwave oven includes an oven body, an... | 04/25/2006 |
| 7025281 | Programmable thermostat incorporating air quality protection The invention is directed to programmable temperature control in which a controller may be programmed to control a thermal output of said temperature-modifying device, and to operate an air circulating system independently of the temperature-modifying device. The ap... | 04/11/2006 |
| 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 |