Patents by Inventor Karl Zell

Karl Zell 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).

  • Patent number: 6036505
    Abstract: The mechanism establishes electrical connection of two printed circuit boards of separate devices that form individual modules within a stackable module system. In order to achieve a simply constructed connection mechanism, the printed circuit boards respectively have centering or spring clips into which an adapter assembly is pluggable. The adapter assembly is thereby composed of two blade or spring clips firmly connected to one another via an adapter assembly printed circuit board, whereby the adapter assembly is surrounded by shielding covers firmly connected to one another. In the plugged condition, the adapter assemblies are conducted through housing openings in oppositely residing housing parts of the devices stacked above one another, whereby the outsides of the shielding covers contact the surrounding edges of the housing openings.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: March 14, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Carsten Siebold, Walter Gerlich
  • Patent number: 5993242
    Abstract: The present invention relates to a method for making contact with a multipole female strip connector for plug connections with coaxial connecting cables. In order to simplify the method and to save tools, a multi-row female strip connector is split into plastic disks, one side of the disk having insulation-piercing terminals which are arranged one behind the other and are connected to contact springs, and the other side having correspondingly formed, overmolded pressure pieces. The disks are held spaced apart in a pressing tool by means of corresponding press-in pins which have a force fit. Coaxial connecting cables, which are cut to length and at whose free ends the outer insulation and the shield mesh have been removed over a predetermined length, are pushed into these disks, which are preassembled spaced apart. When the disks are pressed together, the pressure pieces press the connecting wires into the insulation-piercing terminal.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: November 30, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Jurgen Seibold, Peter Seidel
  • Patent number: 5984733
    Abstract: The present invention relates to a method for making contact between a multi-pole socket connector for plug-in connections and connecting wires. To simplify the method and economise on tools, a multi-row socket connector is split up into plastic plates, one side of the plate holding insulation piercing connecting devices and contact springs connected thereto, and the other side having correspondingly shaped integrally extruded pressure members. The plates are held at a spacing in a press tool by corresponding press-in pins having an interference fit. Connecting wires cut to length are inserted into these plates preassembled at a spacing. The connecting wires are pressed by the pressure members into the insulation piercing connecting device when the plates are pressed together.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: November 16, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Jurgen Seibold, Peter Seidel
  • Patent number: 5803768
    Abstract: The invention is directed to a plug-type connector for backplane wirings, composed of a blade connector portion and a metal spring clip portion. Individual contact springs are surrounded by electrically conductive shielding plates that are connected to contactings applied in an intermediate grid both at the backplane side as well as at the printed circuit board assembly side, the contactings being charged with an appropriate potential.In order to obtain a comparatively simple structure of the spring clip portion of improved simplicity, the spring clip housing (1-8) is composed of an electrically conductive material, whereby the contact springs (35-37) are arranged insulated therefrom in receptacle chambers (9-16).
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: September 8, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Juergen Seibold, Peter Seidel
  • Patent number: 5782656
    Abstract: The invention is directed to a plug-type connector for backplane wirings, composed of blade connector and spring clip, wherein the individual contact springs are surrounded by electrically conductive shielding plates that are connected to contactings applied in the intermediate grid both at the backplane side as well as at the assembly side, these contactings being charged with an appropriate potential. In order to obtain a comparatively simple structure of the spring clip, the spring clip (1) is composed of through receptacle chambers into which metallic tubes (4) can be inserted, wherein contact springs (5) extrusion-coated with plastic (12) can be placed into the tubes (4).
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: July 21, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Juergen Seibold, Peter Seidel
  • Patent number: 5740607
    Abstract: In order to reemploy the centering strips when equipping wiring backplanes with contact blades, the contact blades (2, 12) have their press-in zones introduced into a blade holder (1, 11) serving as a centering strip, being introduced thereinto in attitudinally correct allocation to one another. The contact blades (2, 12) introduced into the blade holder (1, 11) are pressed into the wiring backplane (5, 15) from the blade holder (1, 11) with a press-in die (7, 17) and the blade holder (1, 11) is pulled off from the contact blades (2, 12) when the press-in die (7, 17) is retracted.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: April 21, 1998
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Peter Seidel
  • Patent number: 5703762
    Abstract: An arrangement for connection of wiring backplanes and module circuit boards wherein individual contact passages arranged in a housing are surrounded by electrically conductive shielding plates that are connected to contactings that carry shield potential. They are attached in the intermediate grid both at the backplane side as well as at the assembly side, and are charged with a corresponding potential. In order to create a connector arrangement for extremely high transmission frequencies and good transmission properties, terminal ends of spring elements of the sheet metal shielding compartment and terminal ends of the spring elements of shielding plates of the contact passages abut with a contacting layer of precious metal at the backplane side. Both the spring elements of the shielding plates arranged perpendicular to the wiring backplane as well as the spring elements of the shielding compartment proceeding perpendicular to the wiring backplane are corrugated.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: December 30, 1997
    Inventors: Karl Zell, Peter Seidel
  • Patent number: 5697259
    Abstract: A communication system including a switching system and a main distributor connected thereto via internal central office lines for the connection of the subscriber network lines is provided. To provide a simple and cost-beneficial communication system, a self-supporting wiring backplane is used having an upper end where the individual system assemblies of the switching system can be hooked and plugged by a downward swivel connection. The terminal strips (splitting strips) of the internal side of the main distributor have exchange-side terminals pressed in on the same wiring backplane under the system assemblies.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: December 16, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl Zell
  • Patent number: 5639263
    Abstract: The invention is directed to a plug-type connection composed of blade connector and spring clip, whereby the individual contact passages are surrounded by electrically conductive shielding plates that are connected to shield contactings carrying a ground or shield potential. The shield contactings are to an intermediate shielding grid system located both at the backplane side and at the circuit board or module side. In order to achieve an improved interconnect passage width between the contact blades and the shield contactings arranged in the intermediate grid, the electrical connection between the connector or spring clip and assembly printed circuit board ensues on the basis of pressure of spring-like bent terminal ends which flatten onto contact surfaces on the assembly printed circuit board.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: June 17, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Peter Seidel
  • Patent number: 5632652
    Abstract: The invention is directed to plug-type connectors for backplane wirings composed of blade connector and spring clip, whereby the individual contact springs are surrounded by electrically conductive shieldings that are connected to contactings applied in the intermediate grid both at the backplane side as well as at the assembly side, said contactings being charged with an appropriate potential.The invention discloses various possibilities for contacting between the shielding in the spring clip and the printed circuit boards carrying the shield potential.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: May 27, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Juergen Seibold, Peter Seidel
  • Patent number: 5565654
    Abstract: The invention is directed to a printed circuit board arrangement for plug-type connections composed of a blade connector and spring clip, whereby the individual contact passages are surrounded by electrically conductive shield plates that are connected to contactings carrying shield potential that are attached both at the backplane side as well as at the assembly side, and whereby both the contact blades and contact springs as well as the contactings are contacted and secured with press-in technique in the printed circuit boards fashioned as multi-layer multilayers. In order to create an adequate interconnect lead-through width between the contactings, the shield potential in the printed circuit board arrangement of the invention is conducted in a separate shield printed circuit board (3) that is electrically separated from the multilayer (1) by an insulating foil (2).
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: October 15, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Juergen Seibold, Peter Seidel
  • Patent number: 5518422
    Abstract: A plug-type connector is provided having shield elements that surround signal-carrying conductor parts. Shielding plates are placed in slots in walls of receptacle chambers which house a spring contact strip. Shield elements are disposed in slots in a wall or floor of the blade connector. The shielding plates of the spring contact strip (8) include transverse shielding plates (14) and longitudinal shielding plates (13) fashioned comb-like so that they interfit and interconnect. The shielding plates (13, 14) are provided with incisions of a predetermined width at a front region of the receptacle chambers (11), having the respective corners bent off in a predetermined direction. Thin, additional contact pins (3) are anchored in the blade connector (1) and are connected to ground. These pins (3) are provided at the intersections of the shield elements and contact the shielding plates (13, 14) of the spring contact strip (8) at four points in the front region of the receptacle chambers (11).
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: May 21, 1996
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Peter Seidel, Rudolf Goerlich
  • Patent number: 5392194
    Abstract: The invention is directed to a coding device for electrical assemblies that can be inserted parallel to one another into a module frame and that are contacted via plug devices attached at the back to a wiring backplane.A coding flange having three quadratic openings arranged in a right angle pattern is arranged on the wiring backplane between the guard rails, and a corresponding coding housing likewise provided with three quadratic openings arranged in a right angle pattern is arranged on the assembly next to the plug connector. Coding pins can be selectively oriented within the openings by 90.degree. turns, whereby the free ends of said coding pins are fashioned as tongues having a rectangular cross-section, and the area of the cross-section of the tongues corresponds to half the area of the cross-section of the quadratic openings.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: February 21, 1995
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Juergen Seibold, Peter Seidel
  • Patent number: 5336098
    Abstract: The invention is directed to a device for the electrical connection of shieldings of multi-pole plugs comprising a spring strip housing to the grounded potential layer of a printed circuit board containing a plurality of contact blades residing perpendicularly thereon.In order to achieve a shielding of the open end faces, the face sides of the plug, just like the longitudinal sides, are provided with a respective face shielding plate of the components side and of the solder side, whereby the face shielding plates are firmly joined to the shielding plates of the longitudinal sides and likewise comprise spring regions in the region of the contact blades.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: August 9, 1994
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Peter Seidel
  • Patent number: 5307242
    Abstract: In order to achieve a partial shielding with different shielding potentials, the shieldings per plug are composed of angled-off shields at the solder side and/or at the component side of a printed circuit board, whereby the length of the shields corresponds to the single or, respectively, multiple length of an individual segment of the spring contact housing of the plug. For fastening the shields to the module, the shields have hooks that are engageable into entry funnels of the outer spring chambers of the spring contact housing and also have press-in pins with which they are secured to the printed circuit board. Also, the shields comprise spring sections in the region of the contact blades, the spring sections being outwardly arced, separated from one another by slots and extending parallel to the contact blades.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: April 26, 1994
    Assignee: Siemens Aktiengesellschaft
    Inventors: Juergen Seibold, Karl Zell
  • Patent number: 5273457
    Abstract: The invention is directed to a connector arrangement between a coax cable and the blades of a wiring backplane, wherein the contact blade carrying an electrical signal is surrounded by contact blades connected to the shielding potential. The connector arrangement includes a plug receiving an inner contact spring connected to an inner conductor of a coax cable with the contact spring receiving the signal-carrying contact blade and the braided shielding of the coax cable is connected to the contact blades lying at the shielding potential via a resilient spring collar having outwardly bent spring tongues in one end of the plug.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: December 28, 1993
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Peter Seidel, Juergen Seibold
  • Patent number: 5229924
    Abstract: A cabinet system is provided formed of one or more individual electrical card cages. Each card cage contains a back wall covering as well as a redesigned lateral part instead of a standard lateral part for fastening in a cabinet. The redesigned lateral part is designed as an outside wall and permits a stacking of the card cages above one another. The stack is completed so as to form an overall cabinet assembly by providing a bottom part and a top part.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: July 20, 1993
    Assignee: Siemens Aktiengesellschaft
    Inventor: Karl Zell
  • Patent number: 5219443
    Abstract: An equipment cabinet having side walls, floor and ceiling formed of sheet metal blanks whose middle region is perforated and whose edge region comprises parallel slots proceeding perpendicular to the edges, whereby the edge regions are multiply angled off, or folded over, for the formation of string pieces. The side walls are joined to the floor and ceiling with connector elements having a quadratic cross-section.
    Type: Grant
    Filed: September 21, 1990
    Date of Patent: June 15, 1993
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Stoerk, Heinz-Juergen Niggl, Georg Buchberger, Karl Zell
  • Patent number: 5217381
    Abstract: A coding mechanism for assemblies pluggable onto a backplane wiring is provided. The backplane wiring is composed of a wiring backplane having contact blades introduced thereinto, and of blade connectors pluggable thereonto and designed as a rectangular housing open at one side for the acceptance of spring clips which are rigidly connected to electrical assemblies. Both the blade connectors as well as the spring clips are composed of individual sub-strips whose lengths correspond to single or multiples of the length of a given sub-segment. Sub-strips of both the blade connector as well as of the spring clip having the length of a sub-segment are partially designed as corresponding coding units in combination with special contacts, and can be attached at arbitrary locations of the strips.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: June 8, 1993
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Hans-Jost Heimueller, Peter Seidel
  • Patent number: 5160272
    Abstract: In a backplane wiring system, individual plug devices are firmly connected to assembly PC boards, and are both capacitatively as well as inductively decoupled from one another by rectangular, metallic shielding housings open at one side which are slipped onto contact blades of the wiring backplane.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: November 3, 1992
    Assignee: Siemens Aktiengesellschaft
    Inventors: Karl Zell, Guenter Thom