Patents Assigned to AEG
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Patent number: 4389616Abstract: A method for digitally regulating the residual carrier phase error in receivers of digital data transmission systems. A comparator compares the sampled data signal or value of the carrier demodulated input signal to the receiver with the estimated value for each associated sampling time or moment as provided by a decider, to determine the deviation dk which is a measure for the phase difference between the sampled value and the associated estimated value. This deviation dk is filtered in a digital loop filter, including a proportional branch and an integration branch, and a regulating value for the demodulated input signal is obtained from a subsequently connected accumulator. A non-linear limitation on the deviation dk is included in the integration branch of the digital loop filter.Type: GrantFiled: December 15, 1980Date of Patent: June 21, 1983Assignee: Aeg-Telefunken AG Licentia Patent-Verwaltungs-GmbHInventors: Heinz Gockler, Hagen Hofmeister
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Patent number: 4387014Abstract: An electrochemical apparatus with a table formed by three slabs on which the workpiece rests. The table is mounted for rotation about a vertical axis and rests on a fixed support. A plurality of rollers in recesses of the fixed support engage the undersurface of the lower slab, and can be raised by servomotors to rotate the table. A clamping arrangement also engages the lower slab and fixed support for clamping the table in any desired orientation.Type: GrantFiled: November 4, 1981Date of Patent: June 7, 1983Assignee: AEG-Elotherm G.m.b.H.Inventor: Edgar Stengel
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Patent number: 4385443Abstract: A sabre saw comprises a saw blade connected at its rear end to an elongated saw blade carrier extending in the longitudinal direction of the blade. The carrier is guided for reciprocating movement in a bushing which is mounted in the housing of the sabre saw for pivotal movement about a pivot axis normal to the longitudinal direction of the carrier. A first bevel gear driven by a second bevel gear on the output of an electric motor is rotated about its axis inclined at an acute angle to the longitudinal direction of the carrier and carrying a pin parallel to and laterally spaced from the inclined axis.Type: GrantFiled: July 24, 1981Date of Patent: May 31, 1983Assignee: AEG Power Tool CorporationInventor: Michael L. O'Banion
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Patent number: 4385338Abstract: A power connector for providing overload protection for an electrical operating station connected to a power mains, composed of at least one overvoltage arrester of a first type which is capable of quenching the power mains surge current and at least one overvoltage arrester of a second type connected in series with said arrester of the first type, with the insulation of one overvoltage arrester, in its unfired state, meeting the requirements of a basic insulation or of the supplementary insulation for a protective insulation, and both arresters being constructed for dissipating the pulses generated by a direct stroke of lightning or nuclear electromagnetic pulses without adversely affecting the protection afforded thereby.Type: GrantFiled: August 20, 1980Date of Patent: May 24, 1983Assignees: Dehn & Sohne & Co., KG, AEG-Telefunken AktiengesellschaftInventors: Peter Hasse, Johannes Wiesinger, Anton Meuser, Erich Pivit
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Patent number: 4366523Abstract: In an overvoltage arrester composed of two electrodes each presenting a side wall and an end wall transverse to the side wall and whose perimeter is bordered by the side wall, the electrodes being spaced apart to define a spark gap and with their end walls facing one another, and an insulating member interposed between the end walls of the two electrodes, the insulating member is dimensioned to protrude laterally beyond the perimeter of the end face of at least one electrode for causing the initiation of an arc to generate a sliding arc discharge following a curved path around the laterally protruding part of the insulating member.Type: GrantFiled: April 24, 1981Date of Patent: December 28, 1982Assignee: AEG-Telefunken AktiengesellschaftInventors: Peter Hasse, Johannes Wiesinger, Erich Pivit
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Patent number: 4346423Abstract: A circuit and process for disconnecting the current from the operating gap of an electrolytic processing device in the event of a short circuit in which a signal is produced from the AC current in the transformer supplying power to the gap, such signal indicating the gap current, the maximum value of that signal is stored for successive time periods and the stored value for a preceding period compared with the present signal to operate a switch in the current supply to the gap when a short circuit condition is detected.Type: GrantFiled: August 18, 1981Date of Patent: August 24, 1982Assignee: AEG-Elotherm, G.m.b.H.Inventors: Hans Matthes, Klaus Reifenrath
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Patent number: 4345293Abstract: In an overvoltage arrester composed of two electrodes spaced apart to define a gas spark gap presenting an arc discharge region, and a spacer member of insulating material interposed between the electrodes and forming with the electrodes the walls of a chamber communicating with the arc discharge region, elements are disposed in the chamber to establish therein a labyrinth gas flow path between the arc discharge region and the spacer member.Type: GrantFiled: August 20, 1980Date of Patent: August 17, 1982Assignees: Dehn + Sohne + Co. KG, AEG-Telefunken AktiengesellschaftInventors: Peter Hasse, Johannes Wiesinger, Erich Pivit
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Patent number: 4345295Abstract: In an arrester for limiting overvoltages in a low voltage power system and for coupling conductors which are normally resistively separated from one another for lightning protection, which arrester includes at least two electrodes spaced apart to define at least one spark gap forming an arc discharge region, and an insulating member holding the electrodes in spaced-apart relation, there is provided a chamber adjacent the arc discharge region and having a chamber wall of an insulating material which emits a quenching gas under the effect of heat and which is provided with at least one outlet aperture through which the gases emitted under the effect of the heat generated during arc discharge can escape.Type: GrantFiled: August 20, 1980Date of Patent: August 17, 1982Assignees: Dehn & Sohne & Co. KG, Aeg-Telefunken AktiengesellschaftInventors: Peter Hasse, Johannes Wiesinger, Erich Pivit
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Patent number: 4331524Abstract: A method and apparatus for electrolytic processing of a metallic workpiece in which short circuits in the operating gap which produce an arc are detected and extinguished by an auxiliary d.c. current of limited duration and counter to the direction of flow of the operating current without withdrawing the electrode or cutting off the operating current.Type: GrantFiled: May 13, 1980Date of Patent: May 25, 1982Assignee: AEG-Elotherm, G.m.b.H.Inventor: Hans Matthes
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Patent number: 4310378Abstract: The tape splicing machine comprises feed means for intermittently feeding adhesive tape from a continuous roll to a mobile head provided with sucking and blowing means and with cutting means. Said feed means comprise a grooved wheel partly wrapped by the tape and a support and guide element provided with sucking and blowing means. Said element is moved periodically to and from the head so as to transfer subsequent portions of the tape from the grooved wheel to the head.Type: GrantFiled: March 7, 1980Date of Patent: January 12, 1982Assignee: AEG-Telefunken Societa Italiana per AzioniInventor: Angelo Bosco
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Patent number: 4256165Abstract: One or more electromagnetic stirring elements are mounted on arms and/or holders, extending from a carriage which runs on a stationary bed and in a direction transversely to the direction of casting. The stirring elements are either directly positioned in the direction of carriage movement or orthogonally thereto. Multiphase elements can be positioned from three different directions to circumscribe the casting.Type: GrantFiled: June 26, 1979Date of Patent: March 17, 1981Assignees: Mannesmann Aktiengesellschaft, AEG-Elotherm GmbHInventors: Axel von Starck, Hans E. Gerbig, Hans Schrewe, Jurgen Sardemann, Josef Glaser
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Patent number: 4249724Abstract: An apparatus for tempering the surfaces of mutually displaced cams of a cast-iron camshaft in which heat energy sources are movably disposed at a distance from each cam. The apparatus holds the camshaft to be tempered in a vertical orientation for rotation about its axis and the heat sources are positioned about the camshaft axis at relative angles of rotation equal to the relative angles of rotation of the corresponding cams so that the cams may be heated simultaneously and syncronously with the rotation of the camshaft.Type: GrantFiled: September 27, 1979Date of Patent: February 10, 1981Assignee: AEG-Elotherm, G.m.b.H.Inventors: Friedhelm Reinke, Edgar Stengel
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Patent number: 4223242Abstract: A method and apparatus for reducing a resonance peak in a piezoelectric transducer for mechanically recording a signal having a band width of several MHz, in particular on a video disk comprising, applying a countercoupling current across terminals of the transducer for counteracting a current flow in the parallel capacitance of the transducer. A circuit of the invention comprises a piezoelectric transducer having two terminals and including in series a characteristic inductance, capacitance, and resistance, and a parallel capacitance characteristic in parallel to the series characteristic, a signal generator for generating the signal to be recorded, a transformer having a primary winding connected to the signal generator and a secondary winding connected to one terminal of the transducer with a symmetrically disposed central ground connected to the secondary winding.Type: GrantFiled: October 25, 1978Date of Patent: September 16, 1980Assignee: Ted Bildplatten AEG TelefunkenInventors: Horst Redlich, Werther Hartmann, Gerhard Dickopp
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Circuit for generating a constant reference oscillation from a video signal affected by a time error
Patent number: 4220968Abstract: A circuit for generating a constant reference oscillation from a video signal affected by a time error, comprising, a cut-off stage for receiving the video signal affected by the time error and outputting sync pulses and vertical sync pulses, a first frequency divider connected to the cutoff stage for receiving the vertical sync pulses and outputting divided frequency pulses and a first comparator stage connected to the first frequency divider for receiving the divided frequency pulses. The first comparator stage has an output connected to an oscillator and the oscillator, in turn, has an output connected to a second frequency divider which is also connected to an input of the first comparator stage.Type: GrantFiled: September 27, 1978Date of Patent: September 2, 1980Assignee: TED Bildplatten Aktiengesellschaft AEG-Telefunken-TeldecInventor: Werner Scholz -
Patent number: 4212912Abstract: Adhesion imparting layer applied to an insulating material serving as a base material in the production of printed circuit boards. The adhesion imparting layer consists essentially of an elastomer of acrylonitrile-butadiene copolymer cross-linked with an organic peroxide.Type: GrantFiled: March 15, 1977Date of Patent: July 15, 1980Assignees: Licentia Patent-Verwaltungs-G.m.b.H., AEG Isolier- und Kunststoff GmbHInventors: Johann Wartusch, Helmut Fasbender
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Patent number: 4201607Abstract: In order to produce an optical cable core composed of a plurality of optical cable elements stranded together, each element is produced by longitudinally slitting a stable tube, inserting at least one optical fiber into the tube through the slit, and causing the slit to close behind the fiber so that the fiber lies loosely in the tube, and the resulting elements are then stranded together to form the core.Type: GrantFiled: November 10, 1977Date of Patent: May 6, 1980Assignee: AEG - Telefunken Kabelwerke AG, RheydtInventors: Peter Rautenberg, Hartmut Hildenbrand, Daljit-Singh Parmar
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Patent number: 4194728Abstract: An apparatus for inductively hardening by quenching of the running surface of bearings of a crankshaft in which the crankshafts are transported by a lifter-conveyor system to a clamp which grips the crankshaft and is pivoted about a lever arm pivotably mounted on the machine frame to a heating position below a plurality of inductors. The inductors ride on the crankshaft as it rotates to inductively heat the running surfaces. The inductors are each mounted on a linkage which also mounts a quenching shower and the linkage in turn is swingably mounted on a further lever arm which is pivotably connected to the machine frame. As the crankshaft rotates, the inductor lifts and the further lever arm lifts off a stop. The apparatus preferably includes a second clamp and set of inductors to which the crankshaft is subsequently conveyed for further treatment after hardening.Type: GrantFiled: March 15, 1978Date of Patent: March 25, 1980Assignee: Aeg-Elotherm G.m.b.H.Inventors: Edgar Stengel, Friedhelm Emde
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Patent number: 4194094Abstract: A device for mechanically recording a signal having a bandwidth of several MHz on a receiving surface, particularly on a video disc, comprises, a rigid housing having a stylus receiving cavity with a piezoelectric transducer mounted in said cavity which is adapted to oscillate backwardly and forwardly. A cutting stylus is connected to the transducer and projects out of the housing cavity for cutting the receiving surface. Damping means are disposed between the transducer and the housing in the cavity and provide a greater resilience for movement of the transducer in the direction of oscillation than in a direction perpendicular thereto.Type: GrantFiled: November 21, 1978Date of Patent: March 18, 1980Assignee: Ted Bildplatten Aktiengesellschaft AEG-Telefunken-TeldecInventor: Horst Redlich
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Patent number: 4189813Abstract: A series of standardized components from which can be assembled a single stage geared turbine having any one of a large number of combinations of output power and gear rotation rate, the components including a plurality of rotor wheels having respectively different wheel pitch diameters, a plurality of steam delivery nozzle sets for each rotor wheel, a plurality of turbine casings each dimensioned to correspond to a respective wheel pitch diameter, a plurality of gear casings each dimensioned to correspond to a repectively different value for the spacing between the axis of a pinion and a gear, and a plurality of pinions having respectively different diameters, any gear casing being connectable to any turbine casing, the turbine casing employed for the turbine to be assembled being selected on the basis of the rotor wheel which has been selected, and the gear casing which is to be employed in the turbine being selected on the basis of the distance between the axes of rotation of the selected pinion and the ouType: GrantFiled: June 6, 1977Date of Patent: February 26, 1980Assignee: AEG-Kanis Turbinenfabrik GmbHInventors: Gerd Ostermann, Erwin Stiegler, Erich Schliermann, Peter Hirsch
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Patent number: 4165246Abstract: A process in which pipes, particularly thick walled pipes, are inductively heated to the austenization temperature, quenched with a coolant to form martensite in the surface zone, then drawn, with additional heat added when necessary and left to cool with the not-quenched layers forming an interstage structure.Type: GrantFiled: April 26, 1977Date of Patent: August 21, 1979Assignee: Aeg-Elotherm, G.m.b.H.Inventors: Friedhelm Reinke, Friedhelm Emde