Famous Patents
The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8106337 | Modularly contained dual or multiple system water heating element assembly A modular water heating assembly containing two heating elements (1, 2), each having a thermostat module (5, 6) inserted into a sensing tube (3, 4) and attached to the same threaded boss (7). The heating elements are therefor contained in... | 01/31/2012 |
| 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 |
| 7375306 | Cooking appliance having multiple operating configurations A cooking appliance is provided. The cooking appliance is coupled to a power supply that includes a first hot wire, a second hot wire and a ground wire. The cooking appliance includes a cabinet and a cavity defined within the cabinet. The cooking appliance also incl... | 05/20/2008 |
| 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 |
| 7304270 | Integrated warmer drawer and warmer zone controls A range for heating foods having a body comprising a top surface, a first chamber located within the range, a second chamber located within the range, multiple heating elements arranged on the top surface for cooking food, an upper and lower heating element arranged... | 12/04/2007 |
| 7297902 | High performance defrosters for transparent panels The present invention provides a window assembly having a transparent panel and a conductive heater grid formed integrally with the transparent panel. The conductive heater grid has a first group of grid lines and a second group of grid lines, with opposing ends of ... | 11/20/2007 |
| 7193185 | Mini-oven A cooking device includes a main oven, a controller for controlling the main oven, a mini-oven, and a control for controlling the mini-oven, wherein the control is in communication with the controller. ... | 03/20/2007 |
| 6949725 | Zone heating of specimen carriers The present invention relates to heating of samples in specimen carriers, and more particularly to the heating of zones of a specimen carrier for differential heating of samples in a specimen carrier, including a specimen carrier in the form of a metallic sheet, in ... | 09/27/2005 |
| 6919538 | Method for thermally treating substrates To increase the temperature homogeneity on the surface of a substrate that is to be thermally treated, a method for thermally treating substrates is provided, according to which the substrate is heated by several separately controllable heating elements. A desired-v... | 07/19/2005 |
| 6822200 | Method and a system for controlling a heating plant A method for controlling a heating plant as well as a control system for such a plant. More specifically the invention relates to the control of a heating plant adapted for local heating of surfaces to avoid ice and snow on such surfaces, and in particular controlli... | 11/23/2004 |
| 6775472 | Radiant energy device for shrinking a thin film A radiant energy device for shrinking a thin film onto an open top of a container, the radiant energy device comprising: a source of power, to provide power to the radiant energy device; a plurality of fixed energy-emitting units, each of the units when energized be... | 08/10/2004 |
| 6692518 | Patient temperature control system A temperature control system provides for the optimal management of patient temperature during a surgical procedure, such as those which require the patient to on bypass. The system employs a plurality of controllers as well as a plurality of temperature ... | 02/17/2004 |
| 6624394 | System for obtaining a uniform air temperature in a discrete space A system for supplying air to a discrete space to obtain a desired set point temperature within the space includes a plurality of units for conditioning the air in the space. Each of the units has an independent electric power supply cord for connection t... | 09/23/2003 |
| 6577816 | Infrared radiation system with multiple IR radiators of different wavelength A radiation system has at least two elongated envelope tubes permeable to light and infrared radiation which are joined together and sealed from the ambient atmosphere, a first envelope tube of which contains an incandescent coil which is electrically con... | 06/10/2003 |
| 6483086 | Deicing mats A deicing apparatus comprises an integral stack of layers inseparably joined in intimate mutual contact forming a flexible mat. The layers include a first layer to be placed into contact with a surface to be deiced or to be maintained clear of ice, having... | 11/19/2002 |
| 6463999 | Multiloop temperature control system A multiloop temperature-control system has a hydraulic bus connected to a plurality of loops for the temperature-control medium and respective hydraulic modules connected to the hydraulic bus, and through the hydraulic bus, to these loops. Plug connectors... | 10/15/2002 |
| 6452135 | Heating unit with selectively energized heating modules A heating unit is provided with heating modules in a housing. Each module has a heating element. An electrical connection is attached to each heating module such that each heating module can be selectively energized to heat its heating element to a high t... | 09/17/2002 |
| 6421503 | Infrared radiation system with multiple IR radiators of different wavelength A radiation system has at least two elongated envelope tubes permeable to light and infrared radiation which are joined together and sealed from the ambient atmosphere, a first envelope tube of which contains an incandescent coil which is electrically con... | 07/16/2002 |
| 6233397 | Dual power rated electric heater A portable heater operates at a first power rating to rapidly heat a space and a second power rating, lower than the first, to safely maintain the temperature of the space. The heater uses a first resistive heating element and a second resistive heating e... | 05/15/2001 |
| 6230745 | Pipe heating device A pipe heating device for conveniently thawing out pipelines. The pipe heating device includes a scissor-like member including a first elongate member having a first end, a second end, and an intermediate portion, and also including a second elongate memb... | 05/15/2001 |
| 6220814 | Turbine interstage sealing arrangement A gas turbine sealing arrangement which includes a seal housing having at least one seal in close proximity to the turbine rotor. The seal housing is preheated prior to turbine start-up to thermally move the seal housing and its seal radially away from th... | 04/24/2001 |
| 6161470 | Permanent filter for the preparation of tea in pots or cups The invention concerns a permanent filter for the preparation of tea in pots or cups, consisting of a filter housing with an upper, ring shaped rim (1) and a fluid permeable straining fabric (3). The special feature of the invention consists in the fact t... | 12/19/2000 |
| 6153861 | Heating element for lambda sensors A heating element, preferably for oblong plate-shaped sensors for measuring oxygen concentration in internal combustion engine exhaust gas, has a conductive heating strip at one end of the heating element and electrical conductors which are connected elec... | 11/28/2000 |
| 5925273 | Electric multi-stage heater assembly An electric multi-stage heater assembly that provides multi-level heating using a plurality of separately controllable heating elements within a housing that is readily interchangeable with standard single-stage heater housings that can be controlled by c... | 07/20/1999 |
| 5765471 | Tortilla warming device An apparatus for warming one or a plurality of tortillas or other unleavened breadstuffs individually, on both sides at once, and simultaneously in a traditional manner. The electric kitchen appliance of this device is efficient and easy to use and meets ... | 06/16/1998 |
| 5320030 | Pancake maker A pancake maker in which several batter-filled containers are simultaneously placed within a heating device to make pancakes. All the resulting pancakes are uniformly shaped and cooked and can be quickly produced. This invention is applicable to the indiv... | 06/14/1994 |
| 4352707 | Composite repair apparatus A composite repair device including a plurality of resistive heating zones, each having independent temperature and rate of temperature rise controls, to compensate for the greater heat loss at the outer areas of a composite patch.... | 10/05/1982 |
| 4217481 | Cooking appliance with several electric cooking zones A surface-unit cooking appliance comprising a plurality of electric hot plates of the same type, each of the hot plates having a temperature regulator and each of the regulators having a temperature sensor for sensing the temperature of a cooking vessel o... | 08/12/1980 |
| 4028527 | Apparatus and control system for heating asphalt An apparatus is disclosed for melting asphalt and for maintaining it in a molten condition without producing by-products harmful to the atmosphere. The asphalt is heated and maintained in a liquid state in an enclosed vessel by transferring heat from a he... | 06/07/1977 |
