Patents by Inventor Lutz Biederstedt
Lutz Biederstedt 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: 5299098Abstract: The invention relates a distribution rack, for cable distribution devices used in telecommunication and data technology. The distribution rack includes at least one base portion 1 and at least one swing frame 3 provided with termination modules 4 and pivotingly supported at the base portion 1 about a swing axis 13 provided at one side thereof. In order to improve the accessibility to the cable duct behind the swung-in swing frame and to facilitate wiring of the cutting and clamping contact elements 5 of the termination modules 4 with cable cores, the invention provides that the swing axis 13 of the swing frame 3 at the base portion 1 is retractably supported. Thereby, with the swing frame 3 retracted and swung-out, fully free accessibility to the cable duct 42 beside the base portion and behind the swing frame 3 is made possible. Further, the cutting and clamping contact elements 5 of the termination modules 4 on the swing frame 3 are particularly easily accessible.Type: GrantFiled: February 12, 1993Date of Patent: March 29, 1994Assignee: Krone AktiengesellschaftInventors: Reiner Schussler, Lutz Biederstedt, Markus Springer
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Patent number: 5289558Abstract: The invention relates to a switching assembly for glass fiber cables of the telecommunication and data technology field, and in particular to a glass fiber cable partitioning and terminal rack. The rack 1 includes a frame 3 supported by the rack 1. The frame 3 includes a jumper field 29 for glass fiber cable cores 8, 9 and at least one magazine 16 or 17 provided with slide-in openings 18 for splice cassettes 19. In similar prior art switching assemblies of this type, there is poor accessibility to the incoming and outgoing glass fiber cable cores 8, 9, thereby a high risk of breakage occurs during assembly, in particular when splicing. For avoiding these disadvantages, the invention provides that the frame 3 is supported at the rack 1 pivotally about a vertical axis 26, and that at the frame 3, a jumper field 29 with a patch field 6, 7 for the incoming and outgoing glass fiber cable cores 8,9 is accessible from the front 4 and from the back 5 of the frame 3.Type: GrantFiled: October 2, 1992Date of Patent: February 22, 1994Assignee: Krone AktiengesellshaftInventors: Heide Teichler, Gerd Richter, Gunter Hegner, Volker Roseler, Lutz Biederstedt
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Patent number: 5108053Abstract: The invention relates to a mounting board (1) for receiving functional elements (8). In order to allow for an easy replacement of different functional elements (8). The mounting board is provided with cutouts (2), into which support elements can be inserted. The support elements (5, 25) accommodate the different functional elements (8) having different dimensions.Type: GrantFiled: March 12, 1991Date of Patent: April 28, 1992Assignee: Krone AktiengesellschaftInventor: Lutz Biederstedt
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Patent number: 5086368Abstract: A connector bank with two rows of insulation displacement contacts for connecting insulated conductors, in particular of cables for telecommunication and data systems, comprising a surge arrester magazine to be inserted into the connector bank. In order to provide a connector bank having a voltage surge protection and allowing connecting and disconnecting as well as testing the attached cable conductors at the insulation displacement contacts even with inserted voltage surge protection, the two rows of insulation displacement contacts are arranged on different sides of the connector bank. An insulation displacement contact of the first row is connected over a connecting element with an insulation displacement contact of the second row. The surge arrester magazine is arranged laterally approximately centrally between the two rows of insulation displacement contacts.Type: GrantFiled: April 23, 1990Date of Patent: February 4, 1992Assignee: Krone AktiengesellschaftInventors: Dieter Gerke, Lutz Biederstedt, Manfred Muller
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Patent number: 5033974Abstract: The invention relates to a plug connector device for telecommunication and data systems, comprising a plug connector 1 and a connector bank 30. The connector bank 30 is formed of a housing with insulation displacement contacts 31 connected each to switching contacts 6. The plug connector 1 comprises a housing 2 with a connector tongue 4 supported therein and has contact tracks 5 on either side which can be inserted between two switching contacts 5 opposed to each other of the connector bank 30. The exterior distance B of two contact tracks 5 being smaller than the interior distance A between two stitching contacts 6.The plug connector 1 is provided such that there is no abrasion between the contact tracks 5 of the plug connector 1 and the switching contacts 5 of the connector bank 30 during the insert procedure. After the insert procedure, a contact connection with a sufficiently high contact force is established between the contact tracks 5 and the switching contacts 6.Type: GrantFiled: January 11, 1990Date of Patent: July 23, 1991Assignee: Krone AktiengesellschaftInventors: Lutz Biederstedt, Dieter Gerke, Markus Springer
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Patent number: 5000703Abstract: The invention relates to a connector bank for conductors, in particular of telecommunication and data systems, comprising a bank body 6 with at least one line of insulation displacement contacts 4 provided with contact slots 5 for the conductors 7.According to the invention, there is provided for connecting shielded cables 22 a shield connecting element 1 consisting of a U-shaped, bent sheet piece 2, the legs 3 of which are insertable into the contact slots 5 of two insulation displacement contact elements 4 and the base 17 of which is provided with a shield connecting contact 19 for connecting the shield cable 21 of the cables 22, the spacing of the legs 3 corresponding at least to twice the spacing of two adjacent insulation displacement contact elements 4.Type: GrantFiled: January 25, 1990Date of Patent: March 19, 1991Assignee: Krone AktiengesellschaftInventors: Lutz Biederstedt, Manfred Muller
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Patent number: 4973262Abstract: A contact member for electrical conductors, in particular for cable wires of telecommunication systems, comprises two electrically conductive contact sections forming a contact slot, in order to simplify and make less costly manufacture and assembly of the components including the contact members, the contact section are formed from an insulating material and are provided with metallized contact surfaces.Type: GrantFiled: August 4, 1989Date of Patent: November 27, 1990Assignee: Krone AktiengeselschaftInventors: Dieter Gerke, Wilhelm Bramkamp, Gunter Hegner, Lutz Biederstedt, Robert A. Williams, Manfred Muller, Wolfgang Radelow
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Patent number: 4887183Abstract: A thermal protection device for overvoltage suppressor which includes spaced contacts 6 mounted in overvoltage suppressor magazines 11 of communication systems. A bow-type spring 3 and a melt element 2 l are arranged with the overvoltage suppressor which is mounted in a chamber of a case body or housing 13. The melt element is pierced by at least one arm of the bow-type spring when an overvoltage occurs for short-circuiting the two contacts of the overvoltage suppressor. A thermal protection device with simple components prevents creepage currents between the bow-type spring and the contacts of the overvoltage suppressor 6, a chamber for the overvoltage suppressor is adjacent and abutting to a separate chamber formed in the case body for accommodating a bow-type spring. Between the two chambers there is a separating wall comprising a thermoplastic melt element.Type: GrantFiled: October 13, 1988Date of Patent: December 12, 1989Assignee: Krone AGInventors: Lutz Biederstedt, Manfred Muller
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Patent number: 4871330Abstract: A connecting strip or receiver has switch contacts formed between break contact flaps which are arranged at a distance or spacing from each other, two interconnecting housing parts define a plug-in channel for a switch or a test plug which makes an electrical connection.The break contact flaps are positioned at a defined distance between them by housing inner walls which also define a plug-in conneciton channel.Type: GrantFiled: May 9, 1988Date of Patent: October 3, 1989Assignee: Krone AktiengesellschaftInventors: Manfred Muller, Lutz Biederstedt
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Patent number: 4822300Abstract: The invention relates to a device for connecting cable wires to cutting/clamping contacts of dropwire connector banks of telecommunication sytems by means of a press-in tool provided with guide and press-in pieces and an actuating face. In order to allow a connection of a dropwire cable wire that thick insulation jacket in one single operation step to a cutting/clamping contact of the dropwire connector bank, the actuating face of the press-in tool is formed as an application body immediately adjacent to the guide and press-in pieces for a striking or lever tool, in particular a screwdriver. By exerting a striking or lever force on the press-in tool, a dropwire cable wire can, thus, be connected in one single operation step to a cutting/clamping contact of a dropwire connector bank. In a further embodiment of the invention, the press-in tool is formed as a part of the closing plug and serves for the fixation of the thin cable wires in dropwire connector banks.Type: GrantFiled: December 3, 1987Date of Patent: April 18, 1989Assignee: Krone AktiengesellschaftInventors: Dieter Gerke, Lutz Biederstedt, Eberhard Klaiber
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Patent number: 4822298Abstract: The invention relates to a wire connector for cable wires, in particular for telecommunications.A device is provided in a wire connector, which can be used for generating a connecting splice as well as for generating a branching splice, without special tools for cutting the cable wires off being necessary. Guide channels (4) are provided having a separating knife (6) for the cable wires (7,8). Furthermore, the upper part of housing (2) includes separating pieces on its underside. The upper part of housing (2) is latchable with the lower part of housing (1) in two different positions, the separating pieces cooperating in one position only with the separating knives (6).Type: GrantFiled: April 4, 1988Date of Patent: April 18, 1989Assignee: Krone AktiengesellschaftInventors: Dieter Gerke, Manfred Muller, Lutz Biederstedt
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Patent number: 4812004Abstract: A splice cassette housing for optical waveguides has to be brought from an installation position, e.g. a socket-type housing, to a splice position. The incoming and outgoing optical waveguide cables fed with known splice cassette housings along the longitudinal sidewalls are disadvantageous for the free mobility of the splice cassette housing. In order to achieve a high degree of freedom in the mobility of the splice cassette housing, the incoming and outgoing optical waveguide cables 8 and 9 are usually fed separately from each other to the splice cassette housing in a common axis within a flexible hose. Further, a groove-type guide channel 11 in the shape of a member "9" is provided in the bottom 6 of the housing for a change in direction of one of the optical waveguide cables by 180.degree., in order to be able to feed the individual optical waveguides again from opposed directions to the splice position.Type: GrantFiled: November 25, 1987Date of Patent: March 14, 1989Assignee: Krone AGInventors: Lutz Biederstedt, Dieter Gerke, Claus Sander