Patents by Inventor Eberhard Nann
Eberhard Nann 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: 6844104Abstract: To improve on a vent plug system for a cell opening of a storage battery containing a plug element with an inner cartridge and a valve element, to where it is possible without the need for maintaining excessive physical tolerances to assemble it with a minimal number of components m simple fashion while still assuring reliable operation without any major effort, the plug element is provided as a cup-shaped unit with an outer contour shaped to fit into, and seal, the cell opening, with an internal cavity and with a gas port between the cavity and an outside surface. The inner cartridge is essentially cylindrical, has an outer contour shaped to permit insertion in the cavity of the plug element and is provided with a gas passage that opens into the cavity, while the valve element is a separate element retainable in the cavity by the inner cartridge and, as a function of the gas pressure, establishes a gas-flow connection between the gas passage of the inner cartridge and the gas port of the plug element.Type: GrantFiled: November 21, 2001Date of Patent: January 18, 2005Assignee: Accumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. KGInventors: Wilhelm Cramer, Eberhard Nann, Manfred Hülscher
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Publication number: 20040013939Abstract: Disclosed herein is an accumulator comprising a housing; cells arranged in the housing wherein the cells are interconnected in an electrical series, and wherein the cells comprise a first cell and a last cell; a lid capable of closing the housing; and a connection region comprising: a first connection element; a second connection element; and a coding element for operation in conjunction with a plug element, wherein the coding element is constructed in a region of the lid or a region of the housing that surrounds the first connection element and the second connection element; and further wherein the first connection element is contacted with the first cell, and the second connection element is contacted with the last cell, and further wherein the first connection element and the second connection element are laterally led out of the housing and are parallel to the lid and arranged spatially close to one another.Type: ApplicationFiled: June 20, 2003Publication date: January 22, 2004Inventors: Eberhard Nann, Ulrich Wulf
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Patent number: 6635386Abstract: The problem of this invention is based on specifying a process for producing an industrial electrolyte that can be designed in the form of a thixotropic gel in the cells of lead storage batteries, with which large quantities of the liquids needed to fill the lead storage batteries can be prepared and mixed to improve its industrial usability. For the technical solution to this problem, the invention proposes that in the active masses of positive and negative plates in the storage battery cells, the quantity of sulfuric acid necessary to adjust the final acid density of the industrial electrolyte for the ready-to-use storage battery be stored in the form of lead sulfate, while, independently of this, water is set to a pH value from 4.1 to 4.7 by adding an acid and is then mixed with a gel former.Type: GrantFiled: December 17, 1998Date of Patent: October 21, 2003Assignee: Accumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. K.G.Inventors: Eberhard Nann, Jean Ruch
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Publication number: 20030154040Abstract: The present invention concerns a process for the determination of charge capacity in a battery, especially the charge and/or aging status.Type: ApplicationFiled: September 27, 2002Publication date: August 14, 2003Inventors: Eberhard Nann, Christian Kuper
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Publication number: 20020064705Abstract: To improve on a vent plug system for a cell opening of a storage battery containing a plug element with an inner cartridge and a valve element, to where it is possible without the need for maintaining excessive physical tolerances to assemble it with a minimal number of components in simple fashion while still assuring reliable operation without any major effort, it is proposed to design the plug element (16) as a cup-shaped unit with an outer contour (18) shaped to fit into, and seal, the cell opening, with an internal cavity (20) and with a gas port (28) between the cavity (20) and the outside surface (24), where the inner cartridge (12) is essentially cylindrical, has an outer contour (36) shaped to permit insertion in the cavity (20) of the plug element (16) and is provided with a gas passage (26) that opens into the cavity (20), while the valve element (14) is a separate element retainable in the cavity (20) by the inner cartridge (12) and, as a function of the gas pressure, establishes a gas-flow connecType: ApplicationFiled: November 21, 2001Publication date: May 30, 2002Inventors: Wilhelm Cramer, Eberhard Nann, Manfred Hulscher
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Plug system for capping cell vents in a storage battery and a battery cap for use in the plug system
Patent number: 6376119Abstract: This invention concerns a plug system for capping cell vents (26, 27) of a storage battery, consisting of a plug body (1) that can be inserted in a cell vent (26, 27), holding a plug (2) and a valve element (3), thus providing a normally closed fluidic connection between the inside (30) of the cell and the atmosphere surrounding the storage battery.Type: GrantFiled: November 11, 1998Date of Patent: April 23, 2002Assignees: Accumulatorenwerke Hoppecke Carl Zoellner, Sohn GmbH & Co. KGInventors: Eberhard Nann, Ulrich Wulf -
Publication number: 20010051301Abstract: The problem of this invention is based on specifying a process for producing an industrial electrolyte that can be designed in the form of a thixotropic gel in the cells of lead storage batteries, with which large quantities of the liquids needed to fill the lead storage batteries can be prepared and mixed to improve its industrial usability. For the technical solution to this problem, the invention proposes that in the active masses of positive and negative plates in the storage battery cells, the quantity of sulfuric acid necessary to adjust the final acid density of the industrial electrolyte for the ready-to-use storage battery be stored in the form of lead sulfate, while, independently of this, water is set to a pH value from 2 to 4.7 by adding an acid and is then mixed with a gel former.Type: ApplicationFiled: December 17, 1998Publication date: December 13, 2001Inventors: EBERHARD NANN, JEAN RUCH
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Patent number: 6071642Abstract: A method for manufacturing a battery cover includes applying electrically conducting elements to at least a portion of a surface of the cover so as to span the surface. The electrically conducting elements are connected to one another and to at least one of the battery poles for dissipating electrical charge.Type: GrantFiled: June 24, 1998Date of Patent: June 6, 2000Assignee: Accumulatorenwerke HoppeckeInventors: Gerhard Pospiech, Eberhard Nann, Hermann Hester, Werner Hampe, Franz-Josef Kohaupt
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Patent number: 5848468Abstract: A method of forming metallic current conducting lugs on an accumulator electrode plate wherein at least the region where the current conducting lug has to be formed comprises a plastic net structure which is preferably provided with a metallization which conducts electricity well, in particular of copper, which is in turn provided with a tin or lead/tin coating and/or a lead coating or a lead alloy coating. Metal strips of an alloy which melts at low temperature are applied to the two oppositely disposed surfaces of the plastic net structure in the region of the current conducting lug which is to be formed. The strips cover over at least the upper region of the current conducting lug which is to be formed.Type: GrantFiled: September 29, 1995Date of Patent: December 15, 1998Assignee: Hagen Batterie AGInventors: Eberhard Nann, Josef Gurtler, Peter Gleuel
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Method and apparatus for determining at least one physical parameter of accumulator electrode plates
Patent number: 5435182Abstract: A method for determining at least one physical parameter of accumulator electrode plates, such as the true plate thickness P.sub.d, the apparent density D.sub.s of the active material, the true density D.sub.w of the active material, the pore volume P.sub.a, the porosity P.sub.0 of the active material or the pore structure, is performed such that, by means of various weighings, the weight (G.sub.FP) of a liquid plate is determined instead of the weight of a real electrode plate, and, from this value, the desired physical parameter is obtained which is used for controlling the production process.Type: GrantFiled: March 30, 1994Date of Patent: July 25, 1995Assignee: Hagen Batterie AGInventors: Rainer Wagner, Peter Scharf, Eberhard Nann -
Patent number: 5415219Abstract: A grid casting mold for the casting of accumulator lead grids has two plates (11, 12) which can be placed against one another with a casting profile (13) or mold cavity complementary to the lead grid which is to be manufactured being formed in their confronting mold surfaces. The plates (11, 12) moreover have a base body (14, 15) which is provided at the profile side with a thermally insulating layer (16, 17) of high temperature fiber ceramic material which is coated on the side remote from the base body (14, 15) with a high wear resistant metal oxide (18, 19).Type: GrantFiled: July 20, 1993Date of Patent: May 16, 1995Assignee: Hagen Batterie AGInventors: Reinhold Wiedenmann, Karl-Christoph Berger, Eberhard Nann
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Patent number: 4988418Abstract: In a method for the electrical measurement of the concentration of acids a measurement electrode (11) consisting at least predominantly of crystalline graphite is arranged in an acid (12) having anions which form graphite intercalation compounds with graphite. The measurement electrode (11) is then intercalated by generating in the measurement electrode (11), at a variable positive potential, a current of such a size that the anions of the acids (12) can from graphite intercalation compounds with the graphite. The current is maintained until the intercalation compounds have formed at the surface. The potential at the measurement electrode (11) is then measured and used as a measure for the acid concentration. The measurement electrode (11) is subsequently deintercalated again.Type: GrantFiled: March 14, 1989Date of Patent: January 29, 1991Assignee: Hagen Batterie AGInventors: Fritz Beck, Holger Krohn, Rainer Wagner, Eberhard Nann
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Patent number: 4788113Abstract: The invention concerns a sheet material and separator envelopes manufactured therefrom for enclosing electrode plates of batteries. The cited object is to improve the manufacturability of the heat-sealed or bonded seams of the electrode envelopes and to prevent puncturing or rupturing of the separator envelopes due to growth of the positive grid. This object is achieved by means of a base-sheet thickness for the sheet material used to manufacture the separator envelopes which is greater in the region of the marginal areas than in the region of the inner surface of the sheet material or separator envelopes.Type: GrantFiled: June 24, 1987Date of Patent: November 29, 1988Assignee: Hagen Batterie AGInventors: Christian Bohle, Eberhard Nann
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Patent number: 4781997Abstract: The invention concerns a storage battery that is protected against the discharge of acid, with fleece separators which completely fill the space between the electrode plates. It is proposed that spacers be built into the fleece separators during a preliminary production step of the separator material. These spacers have support surfaces which are situated at least on one side of the separator material below the surface of said separator material and which preferably extend approximately parallel to the surface of the separator material. The spacers can be fixed in position by a preferably very thin and wide-meshed screen that has been worked into the separator material.Type: GrantFiled: December 5, 1986Date of Patent: November 1, 1988Assignee: Hagen Batterie AGInventors: Christian Bohle, Eberhard Nann, Ulrich Romling
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Patent number: 4778479Abstract: In a method of manufacturing accumulator plate sets separator sheets (15) consisting of glass fleece are cut to size and are adhesively bonded to form pockets after being folded around a positive grid plate laid thereon. A predetermined compressive stress is maintained in the plate set (18) by bands (21) placed around it, whereupon the plate sets are then inserted into an accumulator housing (20).Type: GrantFiled: March 17, 1987Date of Patent: October 18, 1988Assignee: Hagen Batterie AGInventors: Ulrich Romling, Eberhard Nann, Udo D. Muhlhan, Walter Wipperfurth
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Patent number: 4760001Abstract: A negative electrode for lead accumulators has the shape of a rectangular planar grid plate (11) consisting of expanded copper metal which serves as a carrier for the active mass and for the supply and extraction of current. The grid plate (11) consists of two side regions of expanded copper metal (14) and a copper strip (12) which is arranged between them in one piece therewith, and which projects at one end beyond the regions of expanded copper metal in order to form the connection lug (13). A current conducting strip is formed at the upper edge of the regions (14) of the expanded metal grid by the appropriately cut-off webs (15) which are bent towards one another into mutual contact at the edge (16) of the expanded copper metal regions (14) at the connection lug side.Type: GrantFiled: March 17, 1987Date of Patent: July 26, 1988Assignee: Hagen Batterie AGInventors: Eberhard Nann, Wieland Rusch
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Patent number: 4657799Abstract: The invention relates to a thin sheet material which can be bonded for the production of separator pockets for lead accumulators in which, in particular, the positive plates of the lead accumulators provided with a web covering are jacketed. It is the objective to optimize the production of the separator pockets and the web covering of the plates and to obtain a better utilization of the positive mass. This objective is met by a web covering which is directly applied to the sheet material for the production of the separator pockets and has an area extension which is smaller than the inside area of the sheet material defined by the provided bonding seams of the separator pocket wherein the web covering preferably consists of an electrically conductive material.Type: GrantFiled: February 14, 1986Date of Patent: April 14, 1987Assignee: Hagen Batterie AGInventors: Eberhard Nann, Walter Bernardi
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Patent number: 4310353Abstract: A low-antimony lead alloy for use in the manufacture of paste-holding grids for lead-acid storage batteries contains 0.05 up to but less than 1.5 percent antimony. Such alloys represent an optimum combination of good processability, freedom from need for maintenance, low self-discharge rate and high cycle strength.Type: GrantFiled: February 25, 1980Date of Patent: January 12, 1982Assignee: Metallgesellschaft AGInventors: Eberhard Nann, Ulrich Heubner