...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 |
| 7823577 | Grill and grill carousel for use therewith A grill assembly includes a flat, broad first grill having a first upper grill face to receive food to be cooked and an opposed lower grill face, and a flat, broad second grill having a second upper grill face to receive food to be cooked, and an opposed second lowe... | 11/02/2010 |
| 7263988 | Portable grill A portable grill apparatus including a frame having a plurality of leg members pivotally attached to a support rod. An arm member is also pivotally attached to the support rod and extends outwardly therefrom on both sides of the support rod. A pair of rail members i... | 09/04/2007 |
| 7210403 | Flair-up resistant front loading roasting system A flair-up resistant front loading roasting system for roasting large quantities safely with a reduced potential for grease induced flair-ups during cooking. The system includes a roasting enclosure adapted for receiving meat to be roasted. The roasting enclosure ha... | 05/01/2007 |
| 7150278 | Multiple burner grill An improved barbeque grill having a plurality of gas-fueled cooking surfaces which can be stored in stacked relation, yet can be moved into essentially side-by-side relation for cooking. ... | 12/19/2006 |
| 7089630 | Hot knob A knob assembly for use with cooking utensils, which includes a hand graspable metallic knob, a metallic bezel for the knob, a first heat insulating separator between the knob and the bezel and a second heat separator between the bezel and the cooking utensil to whi... | 08/15/2006 |
| 6978777 | Cooking stove including invertible support rack, support rack with dual cooking surfaces, and methods of using same A stove for outdoor use includes a hollow shell formed from heat-tolerant material, and a substructure for supporting the shell. The stove also includes a burner assembly, operatively attached to the shell or to the substructure, and a vessel support rack for placem... | 12/27/2005 |
| 6929001 | Rotating barbecue grill A barbecue grill comprises a gridiron disk, a shaft extending from the gridiron disk so that the shaft becomes substantially perpendicular to the gridiron disk, a bowl having a channel where the shaft is detachably received through the channel, and a motor attached ... | 08/16/2005 |
| 6922033 | Barbeque cover support device A cooking apparatus for controlling the opening of a cover over a barbecue grill includes a motor for opening and closing the cover over the barbecue grill, with the motor connected to the cover by a coupling rod. The cooking apparatus includes, in one embodiment, a... | 07/26/2005 |
| 6799567 | Barbeque grill construction A wood burning barbecue grill construction 10 including a base member 20 optionally mounted on a support post 90 and dimensioned to receive an enlarged hollow cylindrical container member 30 and a support column 40 provided with a ... | 10/05/2004 |
| 6584967 | Portable cooking apparatus and methods of use thereof An apparatus for use as a cooking aid. The apparatus includes a bar, an arm, and a holder. A preferred embodiment of the apparatus has a holder that includes a biased member operably coupled to the holder. The biased member is shiftable between a resting ... | 07/01/2003 |
| 6564793 | Rotating firebox barbeque grill A rotating firebox cooking apparatus is disclosed. The rotating firebox may be constructed with a grilling apparatus, or it may be easily retrofitted to an existing conventional grilling apparatus. The firebox of the present invention is located within a ... | 05/20/2003 |
| 6516792 | Compact multipurpose outdoor cooking apparatus A compact multipurpose, multi-component cooking apparatus adaptable for use in an outdoor environment, the cooking apparatus comprising an annular ring, a basin having a flange to mate and engage with the annular ring, a cooking surface suspended from wit... | 02/11/2003 |
| 6202638 | Grill cover A cover for a grill equipped with a downdraft ventilator. The cover includes a heat resistant enclosure having a bottom edge that sufficiently encloses the grill to contain smoke and splatter generated during cooking. A vent opening is defined in the encl... | 03/20/2001 |
| 6138553 | Rotary cooking apparatus The rotary cooking apparatus of this invention includes a housing with a bottom opening to allow heat and smoke from a heat source into the housing. The bottom opening defines a plane on which the housing can rest upon. The opening is generally sized to f... | 10/31/2000 |
| 6000388 | Barbecue grill with vertical hearth, rotisserie attachment, and/or pot rack A barbecue grill includes a body defining a heating chamber and having an open top. A main food supporting grill is mounted on the body in a generally horizontal manner so as to span at least a portion of the open top. Walls extend generally upwardly from... | 12/14/1999 |
| 5996572 | Turbo-charcoal barbecue A turbo-charcoal barbecue is designed with five main features; a detachable turbo unit, an adjustable rotisserie ensemble, a moveable charcoal tray, removable ash trays, and fire screen. The detachable turbo unit is positioned to recirculate hot air from ... | 12/07/1999 |
| 5983882 | Barbecue grill apparatus A barbecue grill apparatus is provided for cooking food items, including a housing having a housing bottom wall and a housing side wall, an upright grill support member extending centrally within the housing, and at least two food supporting grid sections... | 11/16/1999 |
| 5944008 | Vertically and horizontally adjustable cooking apparatus An outdoor cooking apparatus (10) for use over an open fire pit. The cooking apparatus has three legs (12, 14 and 16 or 216) mounted together by a connector plate (18) in a tripod shape. The third leg of the apparatus includes a top portion (16A), a middl... | 08/31/1999 |
| 5931148 | Adjustable grill A food shelf attached to the lower end of a vertical threaded rod engages a nut that is attached to the summit of an arch that rises from a horizontal frame. The frame may be removably set onto a receptacle containing a source of heat, or the same frame c... | 08/03/1999 |
| 5908026 | Portable vertical rotary grill A portable vertical rotary grill includes a support structure, a power source, a motor, and a grill. The support structure is preferably a tripod, but other support structures may also be used. The power source is preferably two D size dry cell batteries.... | 06/01/1999 |
| 5801357 | Electric barbecue with rotisserie An electric barbecue with rotisserie comprises a frame, a kettle placed on the frame, a resistive electric heater element and a rotary spit. A motor driving the spit is housed in a unit fixed to the frame. A drive arrangement connects the motor to the spi... | 09/01/1998 |
| 5787873 | Retro-fit barbecue grill drive A retro-fit barbecue grill grid gear drive assembly (36) is provided for attaching to a prior art barbecue stand (20) comprises an electric 110V gear drive motor (48) or 12V reversible gear drive motor (118) attached to a heat-sink perforated plate (58 or... | 08/04/1998 |
| 5660101 | Rotatable cooking apparatus A rotatable cooking apparatus of five main parts: a fire box, a charcoal grill, a rotary transmission system, a cam mechanism, and a food basket. The food basket comprises two grills foldable on top of one another so that food can be secured between them.... | 08/26/1997 |
| 5456163 | Juice and gravy drippings collector system for barbecue grills System for draining and collecting of the gravy and juices produced by a barbecue grill. The system can incorporate an inclined surface to drain gravy and juices to a container located exterior to the grill. Alternatively the system can utilize a separate... | 10/10/1995 |
| 5410950 | Adjustable rotisserie There is provided an adjustable rotisserie having a fire bowl containing a heat source. An elongated rotatable shaft including a pair of prongs attached thereto for holding the food to be cooked is located above the fire bowl. A frame assembly which may b... | 05/02/1995 |
| 5317128 | Electric heating unit for heating container space to variable temperature with constant electric current An apparatus for heating the contents of a container having a base with a planar heat conducting surface of predetermined shape. The apparatus includes a planar heat radiating surface of the same predetermined shape and a planar support surface for suppor... | 05/31/1994 |
| 5099821 | Multi-chambered barbecue grill A multi-chambered barbecue grill having a main chamber, a cooking grill located in the main chamber, a fire source located in the main chamber below the cooking grill, an ash chamber attached to the main chamber below the fire source for catching ashes, a... | 03/31/1992 |
| 5007403 | Fan-shaped barbecue kettle A fan-shaped barbecue kettle comprises a kettle shell in fan-shape, an air hole on each of the fan-shaped end walls in the vicinity of a charcoal grill which is inside the kettle shell, a cover, and a roasting grill which can fold up, stand upright or cha... | 04/16/1991 |
| 4944282 | Grill apparatus A grill apparatus to be used in conjunction with ovens that include a heat source and an upper opening. The grill apparatus is rotably mounted within a support frame that is pivotally mounted to the oven so that it can be brought within the opening and ex... | 07/31/1990 |
| 4932390 | Adjustable barbecue grill The present grill has a food-support grid that is adjustable both vertically and rotatively. The vertical adjustment determines the spacing of the food being cooked above the charcoal or other heat source. The rotative adjustment enables the food to be po... | 06/12/1990 |
| 4932391 | Grill device A grill device or grill kit, having a base, support post, and a cantilevered support arm, adjustably interconnected for wide accommodation of cooking or grilling situations, outdoors or even indoors in a front-loading stove or fireplace. The support arm, ... | 06/12/1990 |
| 4759338 | Barbecue cover support device A device for supporting the hinged cover of a barbecue brazier partially open in any one of a plurality of selected positions comprises an elongated planar support member having a plurality of upwardly orientated cover hooks along its length for selective... | 07/26/1988 |
| 4732138 | Campfire cooker A campfire cooker assembly including a tripod and grill structure, a fire bowl and a smoker. Each component may be used alone. The fire bowl may be used with the tripod and grill or the smoker. An additional grill for the tripod and grill structure may be... | 03/22/1988 |
| 4469019 | Barbecue grill A barbecue grill comprising a fire bowl, legs for supporting the fire bowl, a cooking grill above the fire bowl rotatable about a generally vertical axis, and a rod which is selectively mountable in a generally horizontal position above the cooking grill ... | 09/04/1984 |
| 4457219 | Annular rotating roaster This invention relates to an annular rotating roaster. The user may apply a cone-shaped flame separator which has numerous outstanding scales on its inner wall, when making a fire in the roaster. Each of the scales has a perforation beneath. The heat from... | 07/03/1984 |
| 4363313 | Portable campfire fireplace A portable campfire fireplace for containing a campfire and for providing a cooking surface which is adjustable with respect to the fire, in which side walls form a firebox and are hinged to fold flat, side by side. A post extends upwardly from eyes at on... | 12/14/1982 |
| 4269164 | Swing-a-way camp grill A ground supported adjustable grill device comprising a single support leg element formed of a plurality of tubular members, the upper member being an inverted L-shape. Suspended from the upper L-shaped member is a grill or cooking utensil removably attac... | 05/26/1981 |
| 4215667 | Portable cooking unit without fuel supporting and ventilating plate A portable cooking unit without a fuel supporting and ventilating plate comprising a circular oven body wherein several piles are extended upwards from the over bottom to support the charcoal or fuel thereon so as to replace the conventional fuel supporti... | 08/05/1980 |
| 4192283 | Barbecue grill cover positioning means A heat-insulated rotatable handle extends through an opening in the cover side wall of a barbecue grill to interconnect with a generally L-shaped lever arm located inside the cover. By the handle alone, the cover may be raised or lowered, and, at the same... | 03/11/1980 |
| 4165731 | Self-adjusting drive shaft for barbecue grid A barbecue having a rotatable grid is provided with a motor and drive shaft to rotate the grid. The drive shaft is self-adjusting for use with different heights of grid and sizes of barbecue. The drive shaft may be used to adapt existing barbecues.... | 08/28/1979 |