Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7368686 | Apparatus and methods for operating an electric appliance An electric cooking appliance is provided. The electric cooking appliance includes a plurality of surface heating elements and a plurality of sensors configured to monitor an operational status of a corresponding surface heating element. The electric cooking applian... | 05/06/2008 |
| 7342202 | Electric grill An electric cooking assembly includes a main body portion that defines a cooking area. First and second cooking surfaces are contained within the cooking area. A first electric heating element arranged to provide heat to at least a portion of the first cooking surfa... | 03/11/2008 |
| 7342205 | Apparatus and method for controlling an electric heating assembly In apparatus and a method for providing electronic control of an electric heating assembly, a radiant electric heater (10, 110) is arranged at a lower surface (22, 124) of a glass-ceramic cooking plate (12, 112), the plate having an upper surfac... | 03/11/2008 |
| 7326885 | Hot plate with stainless steel top A hotplate with a stainless steel top plate to support a vessel. The stainless steel top plate has an upper surface with a substantially centrally located depression having a depth and area generally sufficient to absorb upward crowning of the top plate when heated.... | 02/05/2008 |
| 7230209 | Dual voltage infinite temperature control for an electric cooking appliance A cooking appliance includes a cooktop having a heating zone including an associated heating element, as well as a control element for setting a desired cooking temperature for the heating zone. When the control element is rotated from a home position across a tempe... | 06/12/2007 |
| 7126091 | Workpiece holder for vacuum processing A substrate for use in a vacuum chamber has a workpiece supporting surface that has two or more mutually electrically insulated bifilar conductors configured as interleaved spirals disposed on it. Each of these bifilar conductors has a respective electrode at each o... | 10/24/2006 |
| 7067773 | Food warming device and methods for its manufacture A food warming is provided with a partially open housing having an open side extending along a longitudinal length of the housing. A heating element is also provided, extending along the longitudinal length of the housing. A support member is disposed to maintain a ... | 06/27/2006 |
| 7053340 | Heating device with two areas A radiant heater is provided, which is subdivided into three concentric areas and which can be mounted under a glass ceramic cooking area. It has a rod controller and the two innermost heating areas are jointly protected against excess temperatures by means of the r... | 05/30/2006 |
| 7044399 | Heating systems A heating system 1 has a ceramic substrate 2 having a mounting face 2a for mounting an object W, a back face 2b and a side face 2c; a heating means 3 for generating heat from the mounting face 2 | 05/16/2006 |
| 7030342 | Electrical heating assembly An electrical heating assembly (2) comprises a glass-ceramic cooking plate (4) having an upper surface (6) for receiving a cooking vessel (8) and a lower surface (10). A radiant electric heater (12) incorporating at least on... | 04/18/2006 |
| 6998582 | Cooking apparatus An open-air cooking apparatus for cooking pizza and the like, includes a horizontal, rotatable, circular turntable cooking surface, sized to support and cook several items simultaneously. The turntable should preferably structured to provide constant, even heat thro... | 02/14/2006 |
| 6940048 | Radiant electric heater incorporating a temperature sensor assembly A radiant electric heater (2) is arranged for location underneath and against a cooking plate (12) and incorporates a heating element (14) spaced from the cooking plate and a temperature sensor assembly (26). The temperature sensor assembly (26) comprises a beam (28... | 09/06/2005 |
| 6930289 | Cooking stove and method for production and components thereof A cooking stove having a cook top, or hob, for cooking food, components thereof, and method of production. The stove has a stove body, a smooth-top cook top with a cooking surface to cook food thereon, and a heat source disposed adjacent to the cooking surface. The ... | 08/16/2005 |
| 6911625 | Heating roller A heating roller has a first heater lamp having a first filament made of tungsten, and a second heater lamp having a second filament wherein the second filament is a heating element whose resistivity value is greater than that of tungsten at a room temperature. ... | 06/28/2005 |
| 6875960 | Heating system A heating system 25 has a main electric heat-generating element 3 and a heating surface 4a for heating an object, auxiliary electric heat-generating elements 5A to 5D, and a main power source 1 for supplying power to ... | 04/05/2005 |
| 6720533 | Heater assembly for heating a wafer A heater assembly of a semiconductor device manufacturing apparatus minimizes a temperature difference between a peripheral portion and a central portion of the wafer being processed in the apparatus. The heater assembly includes a unitary resistive heating member i... | 04/13/2004 |
| 6693262 | Cooking hob with discrete distributed heating elements A cooking hob comprising a glass ceramic plate and an underlying plurality of electrical heating elements disposed in matrix configuration and controlled by static switches in order to be able to use at will any region of said hob for heating the contents... | 02/17/2004 |
| 6420684 | Asymmetric radiant electric heater with multiple heating zones An asymmetric radiant electric heater has multiple heating zones which can be arranged in a plurality of configurations. The heater comprises a dish-like support having two orthogonal axes of symmetry, a base of thermal and electrical insulation material ... | 07/16/2002 |
| 6313447 | Cook top positioning element for a heating device A cook top with a frame on which there is secured a cook top panel, in particular made of glass ceramic. A plurality of hot plates is provided which can each be heated by a heating element that is secured beneath the cook top panel. For the positioning of... | 11/06/2001 |
| 6300605 | Radiant electric heater A radiant electric heater comprises a base (3) of thermal insulation material having supported thereon or adjacent thereto at least two concentrically-arranged heating elements (7, 9) separated by a dividing wall (5) of thermal insulation material to form... | 10/09/2001 |
| 6242722 | Temperature controlled thin film circular heater A thin film tin-oxide heater (10) including an annular inner heat region (12), an annular outer heat region (14), a first silver buss bar (16), and a second silver buss bar (18). The radius (r2) between the inner and outer heat regions is selec... | 06/05/2001 |
| 6138554 | Multi-layer griddle An apparatus for cooking food having a multi-layer cooking plate including a stainless steel sheet layer having a top surface and a bottom surface and a high thermal conductivity material layer metallurgically bonded to the bottom surface of the stainless... | 10/31/2000 |
| 6127659 | Food warmer A heating plate for a food warmer is disclosed. The heating plate has a surface for supporting an article to be heated and a plurality of heating clusters attached to the surface. Each heating cluster has a thermostat and a plurality of heating elements s... | 10/03/2000 |
| 6093914 | Electric cooking appliance An electric cooking appliance operable from two 120 VAC household circuits. The electric cooking appliance includes a plurality of surface heating units and a pair of oven heating units operably coupled to two AC power sources. The oven heating units are ... | 07/25/2000 |
| 6034358 | Radiant electric heater A radiant electric heater includes a base (2) of insulation material and a lamp-form heating element (3) supported adjacent to a surface of the base. The lamp-form heating element is in the form of a filament (4) inside an elongate envelope (5). The surfa... | 03/07/2000 |
| 6018149 | Radiant electric heater A radiant electric heater has first, second and third heating zones (1, 2, 3) arranged substantially side-by-side. The first heating zone (1) is provided with at least one first heating element (9). The second heating zone (2) is arranged adjacent to the ... | 01/25/2000 |
| 5977523 | Electric heating method An electric heating method is described for use with a glass-ceramic top cooking appliance. A first sensor coil is provided in a heater associated with a first heating element and a second sensor coil is provided associated with a second heating element, ... | 11/02/1999 |
| 5893996 | Electric radiant heater with an active sensor for cooking vessel detection An electric radiant heater is constructed with a pot detection system for switching on one or more heating areas. The pot detection system operates inductively according to the resonant circuit detuning principle. The sensor consists of a single-turn loop... | 04/13/1999 |
| 5892206 | Radiant electric heater arrangement and method of operating the same A radiant electric heater arrangement for a glass-ceramic top cooking appliance includes a heater in the form of a dish-like support supporting a first heating element and a second heating element. The first heating element has a predetermined minimum ope... | 04/06/1999 |
| 5864121 | Heating element A heating element with a radiant heating body for glass ceramic hobs, including four heating conductors which extend substantially concentrically and parallel to each other; and a ten-stage switch for switching said heating conductors through the intermed... | 01/26/1999 |
| 5847362 | Corrugated paperboard manufacturing apparatus providing controllable heat and related methods An paperboard making apparatus includes at least one heating plate having opposing first and second surfaces; at least one electrically powered heater positioned adjacent the first surface of the heating plate; and a take-up for advancing a corrugated pap... | 12/08/1998 |
| 5823099 | Grill A grid includes a rectangular rack, a drip plate mounted on the rack, a cooking grid supported on the drip plate, a plurality of halogen lamp tubes transversely arranged in parallel on the rack, a plurality of far-infrared ceramic tubes respectively sleev... | 10/20/1998 |
| 5700992 | Zigzag heating device with downward directed connecting portions A heating device has a plurality of strip heating portions separated by a plurality of slits. The strip heating portions are connected to one another by connecting portions, thereby forming a heating surface in which a zigzag current path extends. The con... | 12/23/1997 |
| 5671323 | Zigzag heating device with downward directed connecting portions A heating device has a plurality of strip heating portions separated by a plurality of slits. The strip heating portions are connected to one another by connecting portions, thereby forming a heating surface in which a zigzag current path extends. The con... | 09/23/1997 |
| 5517005 | Visible light and infra-red cooking apparatus An oven using one or more quartz tungsten light bulbs capable of producing 1.5 kW of radiant energy of which a significant portion is light energy in the 0.4 to 0.7 μm wavelength range impinges high intensity visible light wave radiation directly onto a ... | 05/14/1996 |
| 5517002 | Radiant electric heater A radiant heater for a glass ceramic top cooking appliance includes a base of thermal and electrical insulating material and at least first and second heating elements arranged such that at least the first heating element provided in a first heating zone ... | 05/14/1996 |
| 5498854 | Radiant electric heater A radiant electric heater for use in a smooth top cooker includes a base of electrical and thermal insulating material and two heating elements supported on the base. One of the heating elements is energisable independently of the other element, for examp... | 03/12/1996 |
| 5489764 | Radiant heating cook-top with biased temperature sensor In a radiant heating unit the temperature sensor (30) of a temperature limiter (29) extends over only part of the diameter of the heating field (17) in which the radiation heaters (13) are located. The temperature sensor is so constructed and/or mounted, ... | 02/06/1996 |
| 5422460 | Glass ceramic cooking hob with a reflecting surface arranged in a position corresponding with a light and/or heat generator, in particular a halogen lamp cooled by air circulation A glass ceramic cooktop includes a free surface on which containers containing food to be prepared are placed, below surface there being provided a light and heat generator, such as a halogen lamp at which there is positioned a reflecting element having a... | 06/06/1995 |
| 5397873 | Electric hot plate with direct contact P.T.C. sensor Electrical heating apparatus (10) is used in an electric stove (R) having a glass/ceramic cooking surface (S). A pan (12) is mounted adjacent an underside of the cooking surface. An electrical heating element (20) installed in the pan heats a defined area... | 03/14/1995 |
