Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7498549 | Selective layer millimeter-wave surface-heating system and method A surface-heating system heats a surface with a high-power wavefront at a millimeter-wave frequency. The high-power wavefront may be a collimated wavefront or a converging or diverging wavefront. In some embodiments, the system includes a frequency generator to gene... | 03/03/2009 |
| 7432482 | Distillation and distillate method by microwaves A microwave energy emitter (108) is positioned in a chamber within a material holding cavity of a containment vessel (106) that is transparent to microwave energy absorption that is further surrounded by a microwave reflective component to reflect the ... | 10/07/2008 |
| 7252402 | Lighting device for baking oven A lighting device for illuminating the inside of a baking oven containing an oven muffle and a front flap or door including a viewing window. The lighting device having a light beam path inside of the front flap and at least one mirror arranged in the front flap for... | 08/07/2007 |
| 7247823 | Defrost vessel for microwave oven A defrost vessel for a microwave oven includes a body having a certain space therein for receiving a refrigerating load, and an antenna connected to the body for oscillating a microwave into the space of the body. When microwave is supplied into a cavity of the micr... | 07/24/2007 |
| 7183514 | Helix coupled remote plasma source A remote plasma source employs a helical coil slow wave structure to couple microwave energy to a flowing gas to produce plasma for downstream substrate processing, such as photoresist stripping, ashing, or etching. The system also includes cooling structures for re... | 02/27/2007 |
| 7155842 | Microwave mixer/dryer reactor for industrial use The invention relates to a microwave mixer/dryer/reactor for industrial use. The inventive machine has a three-fold purpose, namely to: a) mix solid products with solids, solids with liquids and solids with very viscous fluids; b) dry aforementioned products; and c)... | 01/02/2007 |
| 7145119 | Microwave cooker having antenna in cooperation with movable stirrer A microwave cooker includes a body having a cooking chamber therein, a microwave source disposed at the body for generating a microwave, a wave guide for guiding the microwave generated from the microwave source into the cooking chamber, a rotation antenna installed... | 12/05/2006 |
| 7135820 | Vane structure of magnetron A magnetron includes semi-circularly shaped electric field adjusting grooves provided on surfaces of outer ends of vanes brought into contact with an inner surface of a positive polar body to make distribution of an electric field uniform on the surfaces of the oute... | 11/14/2006 |
| 7119312 | Microwave fluid heating and distillation method A microwave energy emitter (108) is positioned in a microwave transparent chamber (123) within a fluid holding vessel (106) of a microwave containment vessel (122). The fluid holding vessel (106) may be transparent to microwave ene... | 10/10/2006 |
| 7106014 | Lectern A lectern incorporating a support member having a recess that can receive a control panel or laptop or notebook computer, for use with the by a speaker or other presenter. The support member defines an interior, and includes a keyboard tray slidably received within ... | 09/12/2006 |
| 7089685 | Method of microwave treatment of wood A method of microwave treatment of wood with a moisture content (based on dry weight) of at least 12% for rapid drying and stress relief which includes determining an area of the wood that is not to be treated, selectively subjecting a surface of the wood outside sa... | 08/15/2006 |
| 7049566 | Cooking device A cooking device includes a first waveguide portion to make a microwave emitted into a heating chamber propagate radially in the directions almost parallel with the bottom face of the heating chamber and to guide the microwave propagated in the almost parallel direc... | 05/23/2006 |
| 6909077 | Microwave ovens A microwave oven has an oven cavity in which a launch site for delivering microwave energy into the oven cavity is provided by a hole (6) in a wall (2) of the cavity and a match plate (10). In order to improve the distribution of microwave energ... | 06/21/2005 |
| 6900424 | Microwave delivery system for a cooking appliance A microwave delivery system for a cooking appliance includes a toroidal waveguide, a launching zone and a waveguide cover. The launching zone includes opposing top, bottom and side walls that form a pathway for a microwave energy field to travel from a magnetron thr... | 05/31/2005 |
| 6888114 | Microwave heating method In order to reduce reflected waves and improve heating matching, a microwave heating apparatus is equipped with at least one cone-shaped, bell-shaped, pyramid-shaped or similarly shaped waveguide, a reflector apparatus provided inside the waveguide, and a reflection... | 05/03/2005 |
| 6884979 | Method and apparatus for uniform heating in a microwave oven A microwave oven and a method for heating a load which is placed therein. According to the invention a predetermined mode in the cavity of a microwave oven is fed by means of an associated feeding port which is arranged to feed essentially the intended mode only, th... | 04/26/2005 |
| 6861632 | Microwave oven A microwave oven includes a motor for a stirrer and a motor mounting unit. The motor is provided at an outer circumferential surface thereof with a first flange having a hole. The motor mounting unit is provided on an outer surface of a wave guide, and includes a se... | 03/01/2005 |
| 6838648 | Temperature detection unit in a high-frequency heating and cooking apparatus This invention provides a heating and cooking apparatus in which foods can be accommodated in a heating chamber with good maneuverability and an appropriate finish can be obtained. A temperature detector detects infrared radiation through an opening provided on a wa... | 01/04/2005 |
| 6831259 | Apparatus for the heating of pressed stock in the manufacture of boards of material An apparatus for the heating of pressed stock in the manufacture of boards of material or in the manufacture of veneer panels. The apparatus includes a microwave preheating device having rod antennae disposed in series, reflective shields, and a heating cell configu... | 12/14/2004 |
| 6812443 | Microwave oven capable of changing the way to supply microwaves into heating chambers A microwave oven has a heating chamber formed inside a body frame. A radiation antenna is provided below the heating chamber. The radiation antenna is structured in such a way that a member housed in an antenna drive box appropriately operates to change the distance... | 11/02/2004 |
| 6797929 | Cylindrical reactor with an extended focal region An elliptical exposure chamber has an extended focal region. A plurality of cylindrical reactors (25) form the extended focal region. Reducing the size of the opening (58) to each reactor (25) reduces the amount of energy reflected and increases... | 09/28/2004 |
| 6781314 | Magnetron A magnetron includes a filament to irradiate thermoelectrons, a plurality of anodic vanes arranged around the filament in radial directions, and an antenna connected to at least one of the anodic vanes. The vane connected to the antenna is provided with an antenna h... | 08/24/2004 |
| 6781102 | Microwave feed system for a cooking appliance having a toroidal-shaped waveguide A microwave delivery system for a cooking appliance having a cooking chamber includes a toroidal-shaped waveguide, a magnetron, a tubular feed member interconnecting the magnetron with the toroidal-shaped wave guide and a field flux generator positioned about the tu... | 08/24/2004 |
| 6753517 | Microwave-assisted chemical synthesis instrument with fixed tuning An instrument is disclosed for microwave-assisted chemical processes that avoids tuning discrepancies that otherwise result based upon the materials being heated. The instrument includes a source of microwave radiation, a waveguide in communication with the source, ... | 06/22/2004 |
| 6737619 | Microwave polymerization system for dentistry A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and crowns, that are made in an extra-oral setting such as a dental laboratory ... | 05/18/2004 |
| 6713739 | Microwave-assisted chemical synthesis instrument with fixed tuning An instrument is disclosed for microwave-assisted chemical processes that avoids tuning discrepancies that otherwise result based upon the materials being heated. The instrument includes a source of microwave radiation, a waveguide in communication with the source, ... | 03/30/2004 |
| 6693266 | Microwave heating apparatus and method of heating objects In order to reduce reflected waves and improve heating matching, a microwave heating apparatus is equipped with at least one cone-shaped, bell-shaped, pyramid-shaped or similarly shaped waveguide, a reflector apparatus provided inside the waveguide, and a... | 02/17/2004 |
| 6667466 | Microwave delivery system for a cooking appliance A microwave delivery system for a cooking appliance includes a toroidal waveguide and a launching zone. The launching zone has an interior metallic surface into which a microwave energy field is introduced. The microwave energy field couples with the inte... | 12/23/2003 |
| 6657171 | Toroidal waveguide for a microwave cooking appliance A microwave delivery system for a cooking appliance includes a toroidal waveguide having a ring diameter twice that of the wavelength of the microwaves produced by a magnetron, and a cross-sectional diameter equal to one-half of the produced microwaves. T... | 12/02/2003 |
| 6649890 | Microwave cooking appliance incorporating electric heating element A microwave cooking appliance includes a sheathed resistive electric heating element including an outer portion, an inner portion and a cross-over portion electrically interconnecting the outer and inner portions. The heating element is arranged in a cook... | 11/18/2003 |
| 6614011 | Microwave oven including antenna for properly propagating microwaves oscillated by magnetron An opening is formed in a right side of a heating chamber. The opening is covered by a protection cover. A waveguide is connected to the opening. A magnetron is connected to the waveguide. The magnetron has a magnetron antenna. An emission antenna is arra... | 09/02/2003 |
| 6590192 | Microwave oven with temperature-dependent automatic stop A microwave oven determines an appropriate time to stop heating even if multiple food items are placed in the heating chamber. After any position on the bottom surface of the microwave oven reaches 75 deg C., a search is made for any other position having... | 07/08/2003 |
| 6563097 | Microwave oven with food search and localized heating A microwave oven heats all food in an appropriate manner even if food items are simultaneously placed at multiple locations in a heating chamber. An auxiliary antenna is periodically stopped at an orientation corresponding to a position where a lowest tem... | 05/13/2003 |
| 6502328 | Seal for holding a microwave antenna at a pressurized tank of a gas drying system and method A seal for an opening defined by a sidewall portion of the pressurizable tank. The tank contains desiccant for drying gases which pass through the desiccant. An elongate antenna extends from an interior portion to an exterior portion of the tank and is us... | 01/07/2003 |
| 6472648 | Microwave irradiation continuous flow heating apparatus A continuous flow type heating apparatus using microwave, which can continuously supply hot water with practically usable flow amount and temperature. An open part is formed on a top face of a horizontally prolonged empty box 10 to become an emitting port... | 10/29/2002 |
| 6462320 | Dielectric heating device employing microwave heating for heating or cooking substances This invention relates to a dielectric heating device. More particularly, it relates to a dielectric heating device which employs microwave heating, suitable for heating or cooking foodstuffs and suitable for, but not restricted to, use as a domestic or i... | 10/08/2002 |
| 6452142 | Microwave ovens and sub-assemblies therefor A microwave oven has an oven cavity with a wall (2) formed with a hole (6) covered on an external side of the wall by a metal launch box (8) and choke plate (7). A metal match plate (10) is mounted on the internal side of the wall (2) so that the match pl... | 09/17/2002 |
| 6444966 | Microwave oven with a rotational antenna A rotational antenna has a circular portion having a disc-like shape and a cylindrical portion connected to the central portion of the circular portion, and rotates in a direction perpendicular to the sheet with the cylindrical portion serving as an axis.... | 09/03/2002 |
| 6441355 | Microwave heating using independently controllable internal and external antennae A microwave heating apparatus including a cavity for heating food, a first antenna, which projects into the cavity and is arranged to pass into or through the food in order to irradiate the food internally, and a second antenna arranged to supply microwav... | 08/27/2002 |
| 6441354 | Microwave polymerization system for dentistry A microwave polymerization system for dentistry utilizes specifically controlled microwave energy to cure polymer materials so as to produce dental prosthetics, such as dentures, bridges and crowns, that are made in an extra-oral setting such as a dental ... | 08/27/2002 |
