Abstract: The invention relates to a method for the progressive induction surface hardening of a closed curve trace of a workpiece, the closed curve trace and a hardening device being moved relative to one another in a feed mode to harden the closed curve trace starting from an initial zone to an end zone, an unhardened soft zone being provided. According to the invention, the workpiece is provided with a marking, the hardening device having a sensor for detecting said marking. The curve trace and the hardening device are moved relative to one another along the treatment direction until the senor detects the marking. Once the marking is detected, another movement takes place in the treatment direction before the hardening device is activated, the curve trace being hardened by the relative movement. The marking is again detected by means of the sensor and the hardening device is then deactivated. The invention also relates to an arrangement which is suitable for carrying out the method described.

Abstract: A power source for an implement used to perform a welding or cutting operation, the power source including an engine component including a generator and a rectifier electrically connected to the generator and adapted to convert alternating current provided by the generator to a direct current, the engine component being switchable between an on condition and an off condition; at least one battery, wherein the engine component and at least one battery are electrically connected to a chopper bus; and a controller in communication with the generator, chopper bus, operation chopper, and the charging switch; an auxiliary power converter including at least one of a DC to AC and a DC to DC converter, the auxiliary power converter being electrically connected to the operation chopper and the at least one battery.

Abstract: An induction hob including a first heating region with a first induction coil and a second heating region with a second induction coil is provided. First and second resonant converters drive an AC current through the first and second induction coils. The first and second resonant converters form a half-bridge resonant converter that is continuously driven such that a direction of current flow through the first induction coil and the second induction coil is alternating. The half-bridge resonant converter controls the output power of the first and second heating regions by varying the frequency of the AC current through the respective induction coil. The first and second resonant converters have different resonance frequencies such that the resonance frequency of the first resonant converter is at least 1.4 times higher than the resonance frequency of the second resonant converter.

Abstract: A grill rack for use in combination with a portable heater is provided. The grill rack comprises a support frame having a first end and a second end. A rack assembly is disposed on the support frame. The rack assembly comprises a plurality of cross members and a plate member. A pair of legs are transversely arranged at the first end of the support frame. A pair of outwardly extending arms are connected to the legs. The outwardly extending arms of the grill rack can be fastened to an opening on the upper end of a portable heater so as to heat or warm food thereon.

Abstract: A system of motor vehicle windscreen wipers including at least one fluid circulation pipe, at least one heating element extending along said pipe, and at least one hydraulic connection connected hydraulically to said pipe. Additionally, the system includes a heat-conducting adapter in contact with said heating element. Furthermore, the heat-conducting adapter is arranged at a suitable distance to transmit at least some of the heat from said adapter to said hydraulic connection.

Abstract: A controller for trimming power used by a heated glass temperature-controlled storage device comprising a frame and a door, the door comprising a door rail and a glass pane, wherein the glass pane includes a glass heater circuit, the controller comprising a variable impedance; a first impedance; a low pass filter; a diode for alternating current (DIAC); and a triode for alternating current (TRIAC), wherein the controller is configured to adjust voltage from the AC power input to a first voltage; filter the first voltage; generate a gate current when the DIAC is on; generate a glass current when the TRIAC is on; and provide the glass current to the glass heater circuit when the TRIAC is on, wherein the variable impedance is adjusted so power used by the glass heater circuit is below a first predetermined value.

Abstract: The gaseous fluid stream treatment unit for treating a meat product cut into slices includes an enclosure (7) in which there is a conveyor device (1) with two or more vertical translation sections (9, 10) moving the trays (2) loaded with slices of the meat product in alternating opposite vertical directions, and at least one horizontal translation section (11) transferring the trays (2) from a final end of one of the vertical translation sections (9,10) to an initial end of the next vertical translation section (9,10). A gaseous fluid circulation device (8) generates a gaseous fluid stream inside the enclosure (7) in a substantially horizontal direction from a gaseous fluid inlet (12) to a gaseous fluid outlet (13) consecutively traversing the two or more vertical translation sections (9, 10) of the conveyor device (1), subjecting the slices to the action of the gaseous fluid stream.

Abstract: A rotary table device of an electric discharge machine is provided with a face plate on which a workpiece is placed, a power unit that generates a driving force for rotating the face plate, and a speed reducer connected to the power unit and configured to reduce the rotational speed of the power unit. The respective centers of rotation of the power unit and the speed reducer are disposed on one and the same axis, and a rotation detector for detecting a rotational position of the face plate is disposed in a space defined by an outer peripheral portion of the speed reducer and an inner wall of a housing of the rotary table device.

Abstract: A graphitization furnace has a furnace structure including a support part within a furnace chamber, and a gate valve. The gate valve in an open state thereof after a graphitization process dumps a pack material within the furnace chamber in a state in which carbon bodies are located within the furnace chamber, and the support part catches the carbon bodies as a level of the carbon bodies lowers with a decrease in an amount of the pack material remaining within the furnace chamber.

Abstract: A tool and related method for removing unwanted gas hydrates from the surface of equipment used in subsea exploration and production. The tool includes a main vessel and a power cable linked together by a connector. Inside the vessel a laser device is connected to an adjustable focus collimator by a cable, with the wavelength emitted by the laser being between 200 nm and 930 nm. When the radiation reaches the subsea exploration equipment it causes the heating thereof, which in turn heats the hydrate through conduction, breaking down the hydrate formation from the inside out. The front lid of the tools includes a window fitted with anti-reflection film that forms an interface between the vessel and the aqueous medium.

Abstract: The invention provides a cooking system that includes a pressure cooker provided with a regulator valve designed to maintain the pressure at a setpoint value, a telecommunications module, and a timer module, the pressure cooker, the telecommunications module, and the timer module being provided with complementary fastener means making it possible to fasten the telecommunications module and the timer module to the pressure cooker as alternatives and in a removable manner.

Abstract: The invention relates to a grill apparatus (1), in the lower part (2) of which there is provided a heat conducting cone (4) which is held in a central position and in which an adjustment cone is rotatably mounted. Both cones (4, 7) have heat conducting means (10) in the form of openings (41, 71). By means of a relative rotation of the two cones (4, 7) with respect to one another, said openings go from congruently completely open to completely closed and are adjustable to any intermediate position, whereby a heat conduction with more top heat or more bottom heat can be directed onto the object being grilled.

Abstract: A welding helmet with a sensor-operated light and photochromic visor lens including a welding helmet body configured, sized, and shaped to cover and substantially conform to a welder's forehead. A frustoconical protrusion, integrated into a front side of the welding helmet body, houses a battery-operated LED light bulb. At least one photosensor is disposed proximal the protrusion. Upon the detection of a welding arc by the at least one photosensor, an auto-darkening filtered visor lens darkens and the LED light bulb in activated. A battery compartment, an on-off switch, and a microchip are disposed on a rear side of the welding helmet body. A padded length-adjustable strap is pivotally disposed across the rear side of the welding helmet body.