Patents Assigned to E.G.O. Elektro-Gerate, Blanc und Fischer
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Patent number: 5892205Abstract: Connecting conductors located within at least one heating field for heating conductors are configured so that they do not luminate in operation and are not bowed or shifted out of place by thermal loading. For this purpose the conductor is corrugated and also securely anchored at regular center-spacings, it having with respect to the heating resistor greater resistance cross-sections. This achieves for a very simple construction an optically advantageous glow pattern of the heater in every operating mode.Type: GrantFiled: May 14, 1996Date of Patent: April 6, 1999Assignee: E.G.O. Elektro-Gerate Blanc und Fischer GmbH & Co. KGInventors: Eugen Wilde, Hans Mohr, Martin Gross
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Patent number: 5753892Abstract: For producing an electric radiant heater a thin heating resistance material strip is placed upright on an insulator. It has foot portions, which are embedded in the heating conductor material. The foot portions are only connected by thin connecting webs to the heating area and are differently shaped and/or oriented to the corrugated heating conductor strip.Type: GrantFiled: February 21, 1996Date of Patent: May 19, 1998Assignee: E.G.O. Elektro-Gerate Blanc und Fischer GmbH & Co. KGInventors: Martin Gross, Eugen Wilde, Hans Mohr, Werner Renz, Franz Bogdanski
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Patent number: 4716277Abstract: A large electric hotplate for restaurants and the like is heated by tubular heaters, which are placed in slots on the bottom of a cast hotplate body. An insulation with metal cover plates and a lower plate dish ensures the necessary pressing and thermal insulation. A sensor tube is placed on the outside of the downwardly projecting outer edge of the hotplate body on either side of the hotplate, said sensor tube being connected to a thermostat supplying the tubular heaters by means of several contacts.Type: GrantFiled: November 21, 1985Date of Patent: December 29, 1987Assignee: E.G.O. Elektro-Gerate Blanc und FischerInventor: Felix Schreder
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Patent number: 4699269Abstract: A stacker has support units with in each case a plurality of support members for in each case two superimposed hotplates distributed over the hotplate circumference and connected by connecting elements so as to be slightly elastically movable relative to one another. The hotplates engage in centered manner in the support units, in such a way that the central axes of the two hotplates engaging in a support unit are mutually displaced at least by the diameter of the fixing bolts projecting over the undersides of the hotplates. For the arrangement under in each case one double layer of hotplates spaced by support units, intermediate layers are provided having on their upper surfaces centering cavities for the engagement of the hotplates and on their bottom surfaces having protective layers for the careful placing on the in each case underlying hotplates.Type: GrantFiled: October 10, 1985Date of Patent: October 13, 1987Assignee: E.G.O. Elektro Gerate Blanc und FischerInventors: Robert Kicherer, Josef Krist, Jens-Uwe Reinhardt
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Patent number: 4605841Abstract: A thermostat for an electric hotplate has a casing formed in one piece from an insulating material with a bottom and four side walls defining one open-sided recess therebetween, a snap-action switch, a support, and a bimetallic strip mounted on the support and acting on the switch, the casing having slots formed therein for fixing the switch, support, and strip in the recess. the recess remains open at the one side when the casing is mounted on the hotplate. Interfitting locking structure on the support and formed interiorly on at least one of the side walls can be brought into mutual engagement by movement of the support substantially parallel to the bottom of the casing, whereby the bimetallic strip is safely and securely held in the recess notwithstanding the absence of a cover for the recess.Type: GrantFiled: July 6, 1983Date of Patent: August 12, 1986Assignee: E.G.O. Elektro-Gerate Blanc und FischerInventors: Karl Fischer, Felix Schreder, Robert Kicherer
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Patent number: 4527050Abstract: An electric hotplate has a hotplate body in the form of a thin ceramic substrate, to whose bottom surface is applied, e.g. by printing, a thin resistive material film. This resistive material film is covered by a protective coating, which prevents damage. Between the protective coating and the bottom tray of the hotplate is provided a thermal insulating layer. The hotplate has an extremely low thermal capacity, so that rapid preliminary cooking or boiling is possible with low power consumption.Type: GrantFiled: June 29, 1982Date of Patent: July 2, 1985Assignee: E.G.O. Elektro-Gerate Blanc und FischerInventor: Robert Kicherer
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Patent number: 4503321Abstract: Apart from its conventional power main heating system, which is manually controlled by a power control device, an electric hotplate has an additional heating system, which is connected in parallel to the main heating system and in series with a temperature switch and an additional contact, which is operated by the adjusting shaft of the power control device in an upper or medium power range of the hotplate. The temperature switch is a relatively inertly operating thermal cutout with a high switching hysteresis, which in this case serves as a timing element which is not normally switched on again once it has been switched off. Continuously adjustable timing power control units and seven-cycle switches are provided as the power control device.Type: GrantFiled: November 10, 1982Date of Patent: March 5, 1985Assignee: E.G.O. Elektro-Gerate Blanc und FischerInventor: Felix Schreder
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Patent number: 4471214Abstract: An electrical heating element (18) for heating a plate, e.g. a glass ceramic plate (14) has a multilayer insulating support (12) in whose dish-shaped depression heater coils (18) are arranged in spiral form. The heater coils are located on the insulating support surface (17) and have downwardly directed deformations (19) comprising a turn pressed out in the downwards direction. These deformations (19) are embedded in the surface layer (16) of the insulating support, which is mechanically stronger and more thermally conductive than the underlying insulating layer (15). The deformations are produced in a mould (22, 23) carrying the heater coils in slots (21) and by means of a bladelike punch (24) a turn is pressed into a depression (25). The connection between heater coil (18) and insulating support (12) during the moulding thereof comprises a loose insulating material, the heater coil and deformations being placed in slots (27) of mould part (26).Type: GrantFiled: July 15, 1982Date of Patent: September 11, 1984Assignee: E.G.O. Elektro-Gerate Blanc und FischerInventors: Gerhard G/o/ ssler, Eugen Wilde, Bernhard Mikschl
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Patent number: 4333669Abstract: The brazed or soldered joint is for the connection of a capillary tube, namely of a very thin, flexible metal tube, with a test point or with an expansion chamber of a temperature regulator operating with an expanding fluid. The brazing or soldering location between the connecting socket of the test point and the capillary tube is surrounded with a sheet-metal sleeve being folded from a sheet-metal strip and embraces the connecting socket, but leaves a slot open. The soldering material in the form of a brazing or soldering paste is placed into a window or into a triangular pocket, is firmly held in this position, thus the brazing or soldering may be carried out in a continuous-heating furnace. The sleeve extends far beyond the free end of the connecting socket and is at a distance from the capillary tube, thus it serves meanwhile as a support against the excessive bending of the capillary tube.Type: GrantFiled: April 23, 1980Date of Patent: June 8, 1982Assignee: E.G.O. Elektro-Gerate Blanc und FischerInventor: Roland Eckert
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Patent number: 4311899Abstract: A cooking unit comprises a substantially flat, thin-walled plate provided with helical grooves. Heating elements in the form of helical, flattened, tubular bodies are received in the grooves and provide a heating surface in which cooking vessels can stand.Type: GrantFiled: April 21, 1980Date of Patent: January 19, 1982Assignee: E.G.O. Elektro-Gerate, Blanc und FischerInventor: Gerhard Goessler
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Patent number: D264673Type: GrantFiled: June 4, 1979Date of Patent: June 1, 1982Assignee: E.G.O. Elektro-Gerate Blanc und FischerInventor: Felix Schreder