Abstract: 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 wall surface opposed to an opening part for taking in and out foods of a heating chamber. The temperature detector detects the temperature of a plurality of parts on a sealing having the substantially same electric wave penetrability as that of the bottom surface of the heating chamber. Accordingly, even when two foods are arranged right and left irrespective of the size of the foods, the temperature of both the foods can be detected. Then, the user does not needs to extend a hand to the interior of the heating chamber and arrange the foods in front and back positions.

Abstract: Commercial microwave oven including a main cabinet for enclosing and protecting various components, having air inlet holes, a base frame under the main cabinet having a box form with an opened top and a front part with a plurality of air outlet holes, a bottom plate on the base frame, an inner case in a space above one side part of the bottom plate, the inner case having a cooking chamber formed therein, a magnetron on a lower part of an outside of the inner case, a transformer for regulating a voltage provided to the magnetron, a waveguide on an underside of the bottom plate, a fan in a rear of outside of the inner case, and a flow guide for guiding air passed through the magnetron toward air outlet holes, thereby cooling components effectively, reducing a volume, and cost of the product.

Abstract: 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 configured as a continuous oven in which the introduction of microwaves into the pressed stock takes place via the rod antennae. The rod antennae are attached to lie horizontally and transversely to the direction of production above, below, or above and below the pressed stock within the heating cell. The reflective surfaces are assigned to the rod antennae on the opposite sides of the pressed stock.

Abstract: The present invention relates to a microwave heating device, and in particular, a microwave heating device with a microwave heating element mounted on the surface of a heating dish on which food is placed inside a heating chamber. The microwave heating device according to the present invention includes a heating chamber for placing an object to be heated; a magnetron for generating microwaves; a waveguide for supplying the microwaves generated by the magnetron through the bottom of the heating chamber; a heating dish on which the object to be heated is placed; a microwave heating element positioned on the bottom surface of the heating dish to generate heat by absorbing microwaves; and an access passage for allowing the microwaves supplied by the waveguide to reach above the heating dish from below the heating dish. The object on the heating dish is heated by the heating dish, which is heated by the microwave heating element and by microwaves that reach above the heating dish.

Abstract: A microwave oven, is designed such that its switches accurately sense whether a door is open or not when opening or closing the door, thus preventing microwaves from leaking out. The microwave oven includes a hook unit, a hook locking unit, a locking step, and a sensing switch. The hook unit is mounted to the door functioning to open or close a cabinet. The hook locking unit is installed in the cabinet to engage with the hook unit. The locking step is provided in the hook locking unit to catch the hook unit when the hook unit enters the hook locking unit. The sensing switch is installed in the hook locking unit to sense whether the hook unit enters the hook locking unit. A screw holding unit is provided on a predetermined portion of the locking step to hold a setscrew which functions to mount the hook locking unit to the cabinet.

Abstract: The door for a microwave unit with a viewing window has a metallic door frame, two glass panes held spaced apart from each other between the metallic door frame and a fine woven fabric for blocking microwaves arranged between the glass panes. The fine woven fabric consists of thin metal fibers woven together preferably in a linen or plain weave and is in electrically conductive contact with the door frame. In order to improve observation of the interior of the microwave unit the thin metal fibers have a thickness of from 0.02 to 0.06 mm and have a spacing of from 0.09 to 0.12 mm.

Abstract: A microwave oven for a vehicle includes an elastic vibration damping unit, and a joint unit which joins a body of the microwave oven to a vehicle through the vibration damping unit. The joint unit fixes the body of the microwave oven to the vehicle while the vibration damping unit damps vibration and impact generated from the vehicle in motion. Accordingly, inner devices of the microwave oven are prevented from being damaged by the vibration and impact.

Abstract: An illuminating apparatus for an induction coil of an induction cooking field is in the form of a ⅓ circular ring segment and carries conducting tracks, which form turns of a coil, which is connected to several LEDs. During induction coil operation an alternating voltage is induced in the coil and consequently the LEDs are supplied. With such an illuminating apparatus it is possible without additional wiring expenditure to illuminate an induction coil under a glass ceramic cooking field.

Abstract: A microwave oven, capable of cooking food by steam generated through a microwave heating operation. The microwave oven includes a cabinet provided with a cooking cavity and a microwave irradiating unit irradiating microwaves into the cooking cavity. The microwave oven includes a steaming unit. The steaming unit includes a steaming container and a cover. The steaming container is made of a microwave penetrable material and is installed to an upper portion of the cabinet such that a lower portion of the steaming container is placed in the cooking cavity. The steaming container is open at a top thereof and the cover selectively closes the open top of the steaming container.

Abstract: A microwave-heatable apparatus for defrosting a windshield includes a housing that has first and second sections integral with each other and selectively movable between open and closed positions. The first and second sections each has an elongated slot formed therein and for advantageously allowing air to flow upwardly therethrough respectively. The first and second sections each has a chamber defined about the respective slots thereof and a plurality of heat-absorbing members positioned within the chambers respectively for dissipating thermal energy so that as air passes upwardly through the slot the air will become heated.

Abstract: Disclosed herein is a microwave oven and method for controlling the same. The microwave oven is used to heat and cook food using high frequency waves generated by high frequency generating means provided in an oven body. The microwave oven includes body sensing means for detecting the presence of a user in a sensing area extended over a certain area in front of the oven body, first operating means for operating the high frequency generating means, and control means for controlling the first operating means to selectively start, stop and resume the operation of the high frequency wave generating means according to the presence of a user in the sensing area.

Abstract: A process for the production of multi-layer metal composite tubes (10), wherein a metal strip is shaped to form a tube (16) and butt-welded along its two longitudinal edges. A plastic inner layer (12) is applied by extrusion in firmly adhering manner to the inside (12) of the metal tube (16) and a plastic outer layer (14) is applied by extrusion in firmly adhering manner to the outside (26) of the metal tube (16).

Abstract: To provide an induction heating roller unit that can efficiently supply power to a heating roller, and fixing device and image forming apparatus incorporating the same. The induction heating roller unit includes: a heating roller; and an induction coil having an outer diameter more than 0.7 times that of the heating roller, the heating roller being concentrically disposed outside said induction coil and generating heat by the effect of an induced current caused by a magnetic field produced by the induction coil. Since the ratio of the outer diameter of the induction coil to that of the heating roller is 0.7 or higher, power can be transferred from the induction coil to the heating roller with an extremely high efficiency.

Abstract: A wall-mounted type microwave oven includes an exhaust fan assembly which increases an internal cooking chamber volume and allows a facing direction of its outlet to be easily changed. The exhaust fan assembly includes a fan case having an exhaust fan therein and a guide duct positioned on a side face of the fan case to guide exhaust gas toward the fan case. A lower portion of the fan case is disposed between the cooking chamber and the oven body, and communicates with an exhaust path of the microwave oven. An upper portion of the fan case protrudes upward from the oven body. Accordingly, a height of the cooking chamber is increased by a protruded height of the fan case. The fan case is shaped to have a square section and to have an inlet and an outlet at its side face and upper surface. The outlet of the fan case can be directed to a desired direction by separating the fan case from the oven body and fitting the fan case into the oven body with the outlet being directed to face the desired direction.

Abstract: An induction heat treating process with a sensor for counting the amount of cycles attributable to an inductor coil. The sensor is preferably a counting mechanism attached to or embedded within the induction coil and is preferably triggered by and responds to the change in voltage generated as the coil is energized. Alternative means of measuring a cycle may be implemented. The output data from the sensor provides useful information for determining the lifespan of an induction coil. Predicting the lifespan of a coil optimizes production by anticipating failure and replacement of a coil during a predetermined down time, limiting on-site inventory, and revolutionizing the billing cycle based on a per cycle cost while decreasing overall production costs and improving inductor coil quality.

Abstract: A device for inductive billet-heating includes a single or multi-layer billet-heating coil (4) for a round billet (5), in which the billet-heating coil (4) is made up of one or more consecutive, galvanically separated zones. The zones are supplied with electrical energy from a three-phase network by means of an electrical switching device and a control unit. The billet-heating coil (4) includes multiple, synchronically regulated zones (Z1, Z2 through Zn) with reference to frequency and phase of inductive field. For a current feed to each zone (Z1 through Zn) of the billet-heating coil (4), a converter (2) with variable frequency and a plurality of modules is provided. The converter includes plurality of power-moderate closed units with DS-network feed and synchronization of phase and frequency of an output voltage.

Abstract: An RF heating system for generating precision stray RF fields that can be used to heat materials. The RF heating system includes an RF power supply for generating RF signals and an electrode apparatus that is coupled to the RF power supply. An electrode apparatus according to the present invention has many advantages over existing electrode apparatuses. For example, the electrode apparatus is easier to manufacture, easier to duplicate, easier to control the manufacturing tolerances on the electrode system, and easier to correctly place and design the resulting RF stray field.

Abstract: A door of a microwave oven comprising: a door panel which is installed on a front surface of a casing having a cavity corresponding to a cooking space of food to be opened and closed; a door frame which is combined with the door panel to be located at a front of the cavity; a choke cover which is inserted in the door frame, for covering a choke seal; and a frame subsidiary plate which is positioned to opposed to the choke cover and is combined with the door frame to remove a gap formed between the choke cover and a lateral surface of the door frame.

Abstract: 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 between a bottom surface of the body frame and the radiation antenna. Microwaves generated by a magnetron are supplied through a waveguide and the radiation antenna into the heating chamber. When the level at which the radiation antenna is positioned is changed, the way to supply microwaves from the radiation antenna into the heating chamber is accordingly changed. Specifically, microwaves are locally supplied into the heating chamber or supplied uniformly into the whole of the heating chamber.

Abstract: The present invention relates to a microwave oven, and more particularly, to a device for cooling electric equipments of hooded microwave oven. The device comprises a ventilation motor assembly 40 mounted on the top of a cavity 20, for forming both a flow of air for a hood function and a flow of air for dissipating heat from the electric equipments; and a suction grill 50 through which outer air is sucked to the top of the cavity 20 by suction force of the ventilation motor assembly 40. The electric equipments are positioned in a flow of the air that is sucked through the suction grill 50 to the top of the cavity 20 and flows to the ventilation motor assembly 40. According to the present invention, since a flow of air for dissipating heat from the electric equipments is linearly formed, its cooling efficiency and the reliability of the electric equipments are enhanced.