Patents by Inventor Rudolf Eckardt
Rudolf Eckardt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7015322Abstract: The invention concerns a process for producing 5H-dibenz[b,f]azepine-5-carboxamide (carbamazepine) by reacting iminostilbene with an alkali cyanate in acetic acid or a mixture of acetic acid with water or with alcohol.Type: GrantFiled: November 23, 1999Date of Patent: March 21, 2006Assignee: Degussa AGInventors: Rudolf Eckardt, Hans-Joachim Jänsch
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Patent number: 5023403Abstract: A flexible connection is made between the printed conductor array of an automotive windshield or rear window and an electric cable by a braided body formed with a lug at one end for connection to the cable and having, at the opposite end, oppositely bent arms or feet in the form of arms of a T soldered to the conductor array only at the extremity of these feet.Type: GrantFiled: December 15, 1989Date of Patent: June 11, 1991Assignee: Flachglas AktiengesellschaftInventors: Rudolf Eckardt, Bernd Diedrichs
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Patent number: 4769198Abstract: The cell poles of an electric battery, which have already been cast on a fully assembled plate group which is fixed in proper position for mounting in a holding box, are provided with a plastic coating using a dual injection mold which matches the predetermined distance between the poles. After the two mold halves are closed over the poles, a plastic melt is injected into cavities corresponding to the poles, which plastic is at the same time prevented from escaping from the mold by a gasket at the base of each cell pole, and a movable slide at the forwardmost end of each cell pole.Type: GrantFiled: September 3, 1985Date of Patent: September 6, 1988Assignee: Varta Batterie AktiengesellschaftInventors: Dieter Bechtold, Rudolf Eckardt
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Patent number: 4739586Abstract: Method and apparatus for the edge grinding of a glass pane in which a grinding wheel is guided to the glass pane so that a grinding point is defined therebetween which travels along the edge of the rotating wheel. Cooling during grinding is provided by a coolant jet dispensed from a nozzle whose end is essentially pointed towards the grinding point. Via a respective control unit, the coolant jet is caused to follow automatically and precisely the movement of the grinding point.Type: GrantFiled: July 22, 1985Date of Patent: April 26, 1988Assignee: Flachglass AktiengesellschaftInventors: Rudolf Eckardt, Hans C. Neuendorf, Horst Spittka
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Patent number: 4666800Abstract: A cover which is to be sealed tightly to the corresponding plastic container of a battery cell by means of radiant heating is provided with a series of molded knobs along the lower side of its edge, which knobs serve as spacers between the cover and the edge of the container during the heat-up phase so that the surfaces to be bonded are exposed to the radiant heat without obstruction. The softened knobs are plasticized and bonded when the container and the cover are subsequently pressed together.Type: GrantFiled: September 3, 1985Date of Patent: May 19, 1987Assignee: Varta Batterie AktiengesellschaftInventors: Dieter Bechtold, Rudolf Eckardt
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Patent number: 4573835Abstract: A machine for boring a hole in a plate workpiece comprises a support, a lower clamp arm carried on this support and having an upper clamp surface adapted to support the workpiece, an upper clamp arm carried on the support and having a vertically displaceable lower clamp surface adapted to press the workpiece down against the upper clamp surface, a lower drill arm pivotal about a horizontal axis on the support and having an outer end provided with an upwardly directed boring tool, and an upper drill arm pivotal about a horizontal axis on the support and having an outer end provided with a downwardly directed boring tool. Respective motors in the support for the machine pivot the arms and rotate the tools.Type: GrantFiled: September 10, 1981Date of Patent: March 4, 1986Assignee: Flachglass AktiengeselischaftInventors: Rudolf Eckardt, Horst Frielingsdorf
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Patent number: 4519829Abstract: A method of quench-tempering a hot shaped glass sheet comprises supporting the sheet in a quenching station underneath a downwardly directed upper nozzle array and above an upwardly directed lower nozzle array by engagement of only a portion of the lower surface of the sheet. The portion engaged for support is interrupted by a generally uniformly distributed array of unsupported regions. An air stream is directed from the lower nozzle array up toward the lower surface of the glass sheet while an opposite air stream is directed down from the upper nozzle array toward the upper surface of the sheet. Generally all of the lower surface of the sheet is shielded except at the unsupported regions from the air stream of the lower nozzle array. A prestress field is thus formed in the sheet which corresponds to the distribution of the unsupported regions. The sheet is supported on and shielded by a plate having the same shape as the sheet but formed with holes at the unsupported regions.Type: GrantFiled: October 13, 1983Date of Patent: May 28, 1985Assignee: Flachglas AktiengesellschaftInventors: Horst Spittka, Rudolf Eckardt, Cristoph Neuendorf
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Patent number: 4516997Abstract: A method of deforming a plastic glass sheet from a generally two-dimensional shape into a generally three-dimensional shape at first supports the plastic glass sheet with its two-dimensional upper face juxtaposed underneath the three-dimensional lower face of a vacuum-forming die. The sheet and die are then relatively displaced vertically toward each other so that one portion of the sheet face engages a respective portion of the die face. The two portions are secured together by suction so that the sheet adheres at the one portion of its face to the respective portion of the die face. Finally, the sheet and die are relatively displaced with deformation of the sheet to press the rest of the sheet face and die face together and adhere the faces entirely together by suction. The sheet is supported on a planar conveyor that is rocked about a horizontal axis to engage the faces together. This conveyor and the die can be relatively rocked about a horizontal axis, or even about two transverse horizontal axes.Type: GrantFiled: October 3, 1983Date of Patent: May 14, 1985Assignee: Flachglas AktiengesellschaftInventors: Paul Derner, Rudolf Eckardt, Hans-Christoph Neuendorf
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Patent number: 4426811Abstract: A method of grinding glass sheets whose edges are polygons that are not symmetrical about a point is carried out in an apparatus having a supply station for supporting a stack of such sheets with all of the sheets in the stack in vertical registration, a grinding station adjacent the supply station having a grinding table rotatable about an upright grinding axis and adapted to support the sheets during grinding, a template secured to the grinding table, and a pair of grinders in the grinding station radially engageable with the edges of the sheet on its grinding table and radially displaceable by the template. The method of the invention comprises the steps of transporting the sheets one at a time from the stack in the supply station to the grinding station, simultaneously engaging the grinders with the sheet in the grinding station while rotating this grinding table with its template and the sheet on the table through 180.degree.Type: GrantFiled: September 18, 1981Date of Patent: January 24, 1984Assignee: Flachglass AktiengesellschaftInventors: Rudolf Eckardt, Hans-Cristoph Neuendorf
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Patent number: 4406091Abstract: An apparatus for grinding the edges of glass sheets comprises a device for supporting a stack of such sheets at a supply station, a table adjacent this supply station and dimensioned to support one of the sheets with its sheet edge overhanging the table, a transport carriage displaceable between the supply station and the table, and lifters on the carriage for picking up a sheet in the supply station, transporting the picked-up sheet to above the table, and for depositing the picked-up sheet on the table. The apparatus is provided with horizontally displaceable pushers on the carriage engageable with the sheet edge of a sheet on the table for horizontally displacing the sheet on the table into a predetermined position relative to the template edge.Type: GrantFiled: September 18, 1981Date of Patent: September 27, 1983Assignee: Flachglass AktiengesellschaftInventors: Rudolf Eckardt, Hans-Cristoph Neuendorf
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Patent number: 4283467Abstract: In an electric storage battery having plate electrodes, the capacity and useful life is improved through uniform distribution of concentration and temperature of the electrolyte by means of electrolyte circulation. A synthetic plastic plate positioned between the plate electrodes and the housing wall of the storage battery contains a plurality of vertically extending transport tubes which are open at their upper and lower ends. The bottom portions of the transport tubes, which are immersed in the electrolyte, are connected to compressed air ducts. The compressed air is mixed with the electrolyte present in the transport tube in such a manner that the electrolyte-air mixture present therein is lifted, due to its lower specific gravity, by the electrolyte which surrounds the transport tube. The electrolyte leaving the transport tube produces continuous circulation within the storage battery, and this ensures permanent exchange of the electrolyte present between the plate electrodes.Type: GrantFiled: February 28, 1980Date of Patent: August 11, 1981Assignee: Varta Batterie AktiengesellschaftInventors: Karl-Friedrich Gutlich, Wolfgang Kappus, Herbert Zweigardt, Rudolf Eckardt
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Patent number: 4075368Abstract: A lead storage battery terminal is constructed of copper or aluminum sleeving, which may be clad with lead, and is sealed into the terminal aperture in the battery lid. The bottom of the sleeve is closed and permanently attached to the lead pole bridge.Type: GrantFiled: May 26, 1976Date of Patent: February 21, 1978Assignee: Varta Batterie A. G.Inventors: Klaus Salamon, Rudolf Eckardt