Patents by Inventor Karl-Erik Leeb

Karl-Erik Leeb 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: 6238802
    Abstract: For sealing and shielding purposes, a laminate is used, including a layer of ionomer plastics bonded to a metal sheet or a metal plate. The bonding is made without any addition of adhesive agents between the plastics layer and the metal surface by pressing, in a heated state, the plastics layer against a well cleaned surface. The metal should be such a kind, that its surface is oxidized when stored in air. A multi-layer laminate is used, where one metal layer provides a good electrical shielding and an outermost metal layer provides good mechanical strength. The plastics layer at the inner side of a laminate is in the same way bonded directly to margins of electrical connector terminals made of metal.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: May 29, 2001
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Karl-Erik Leeb
  • Patent number: 6135817
    Abstract: An arrangement for sealed contact devices and a method of producing the arrangement by laminating a centring device (6) to a barrier layer (4) and conductor pins (1) centred and guided therein with an adhesive plastic material (8), and by forming a combined lid and contact device which is electrically screening and impervious to moisture.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: October 24, 2000
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 6102736
    Abstract: The present invention relates to a method and device for functional protection of connectors where a heat-emitting means heats contact pins while certain selected parts of the pins are preferably covered with heat-insulating material (12) which furthermore can be contamination- and gas-tight. In this way contamination of the contact pins and condensation of moisture is counteracted which leads to a longer life because of less corrosion and leakage currents being prevented. These problems are specially common in connectors for electronic constructions which are cooled with exterior air and/or are used outdoors.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: August 15, 2000
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 6002585
    Abstract: The present invention relates to a method and a device for protecting electronics which are cooled with exterior air. The device comprises an electronic circuit (8) arranged on an electronic support (1) with associated connector (7), which electronic circuit (8) consists of electronic components and/or subcircuits. The device is characterized in that it comprises on the one hand a first casing (2) which surrounds the electronic circuit (8) and towards and over the surface of which a cooling air current (30) is led, on the other hand a second casing (6) which is arranged to cooperate with the first casing (2) so that a connector (7) associated with the electronic circuit (8) is protected from the cooling air current (30) in a space (13, 16) separated from the cooling air current (30).
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: December 14, 1999
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5853644
    Abstract: An apparatus for pressing plastics that includes a press tool which is adapted to be pressed against a press surface with the aid of pressure means. The press surface includes a flat surface which is common to a thermostat-controlled cold device and a thermostat-controlled hot device. The tool can be moved from one thermostat-controlled device to the other thermostat-controlled device while pressure is being applied to vary the temperature of the tool.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: December 29, 1998
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5837086
    Abstract: The present invention relates to a method of injection-molding electrically shielding electronic casings, where a laminate that comprises at least one metal foil and at least one plastic layer is held stretched in an injection-molding tool. According to the invention, a plastic structure is molded in the tool on that side of the laminate which comprises the plastic layer, wherewith the laminate is deep-drawn in the tool and formed therein as the plastic material is injected thereinto and the plastic layer adheres to the plastic structure, therewith forming a molded plastic element which includes an integrated and uniformly distributed and therewith shielding metal layer.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: November 17, 1998
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Karl-Erik Leeb, Lars Persson
  • Patent number: 5527989
    Abstract: A device for flexibly encasing electronic circuitry, where an electronic circuit is enclosed in a casing which includes a laminate consisting of metal and plastic sheets such as to form a diffusion impervious and electrically conductive structure which prevents harmful substances from reaching the electronic circuit and also prevents inductive electromagnetic exchange. Electrical conductors pass through the joint region of the laminate.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: June 18, 1996
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5501008
    Abstract: An arrangement for establishing electrical contact in joints, and a method of producing the arrangement. The arrangement comprises an electric contact making device which is enclosed in a joint between two metal surfaces between which electrical contact shall be established. The joint and the contact making device are held together and protected by plastic material. The arrangement is produced by applying pressure to the joint so that the surface penetrating devices of the contact making device will spring, and by converting the plastic material from a fluid state to a solid state while maintaining the pressure, so that the resilient biassing effect of the surface penetrating devices against the metal surfaces will be made permanent in the arrangement.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: March 26, 1996
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5457603
    Abstract: An arrangement for cooling electronic equipment in a space by using radiation transfer, wherein the equipment includes heat-emitting electronic components mounted on a circuit board or the like. According to the invention, each circuit board or the like is surrounded by a cold plate which is spaced from the circuit board. The surfaces of both the circuit board and the plate are treated so as to have a high IR-radiation coefficient, wherein heat is transferred from the hot circuit board to the relatively colder plate by radiation.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: October 10, 1995
    Assignee: Telefonaktienbolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5435746
    Abstract: An arrangement for establishing electrical contact in joints, and a method of producing the arrangement. The arrangement comprises an electric contact making device which is enclosed in a joint between two metal surfaces between which electrical contact shall be established. The joint and the contact making device are held together and protected by plastic material. The arrangement is produced by applying pressure to the joint so that the surface penetrating devices of the contact making device will spring, and by converting the plastic material from a fluid state to a solid state while maintaining the pressure, so that the resilient biassing effect of the surface penetrating devices against the metal surfaces will be made permanent in the arrangement.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: July 25, 1995
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5375322
    Abstract: In a method of manufacturing a circuit board having a lateral conductive pattern and shield regions, a first laminate of a substrate, covered on one side by a copper foil, is contour cut whereafter a second entirely covering copper foil is laminated to the second side of the substrate, and a conductive pattern of signal conductors and ground conductors is etched in the second copper foil. The second substrate is also contour cut and is laminated to a copper foil, whereafter a window is etched in the copper foil, corresponding to a window cut in the substrate. The second laminate thus formed is adjusted in regard of the pattern to the first laminate and is adhesively secured thereto, the side of the second laminate covered by the copper foil turned away from the wide of the first laminate provided with the conductive pattern.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: December 27, 1994
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5319330
    Abstract: A device with laminated conductive patterns and dielectrics which can be selected without consideration of its bonding characteristics in regard of copper metal comprises a conductor means comprising a support frame with a window in which one or more etched conductors are arranged. The conductor means is located on one surface of a dielectric sheet or between two such sheets.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: June 7, 1994
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5317292
    Abstract: In a device having flexible, stripline conductors surrounded by a dielectric and ground planes, a conductor laminate (1) comprising a substrate (1) and conductors etched on one of its surfaces and windows cut between the conductors and a ground plane laminate comprising a substrate cut essentially similarly to the substrate of the conductor laminate with somewhat larger dimensions and a copper foil arranged on one of the sides of the substrate are adhesively bonded to each other with the conductors of the conductor laminate engaged with that side of the substrate of the ground plane laminate which is not covered by a foil. A metallization is provided on the side of the device which is opposite to the foil covered surface of the ground plane laminate. This metallization is electrically connected to said foil covered surface such that conductors and substrates are completely enclosed by an electrically conducting layer.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: May 31, 1994
    Assignee: Telefonaktibolaget L M Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5298684
    Abstract: A circuit board with a lateral conductive pattern and shielded regions comprises a first contour cut laminate of a substrate having a conductive pattern of signal conductors and ground conductors on one side and a copper foil on the other side, covering the entire side. This laminate is laminated with the side provided with the conductive pattern to a second laminate also comprising a contour cut substrate and a copper foil provided on the substrate on the side opposite to the first laminate. Windows are cut in the substrate of the second laminate and are etched away in the top copper foil to enable mounting of components to the conductive pattern in the windows. A metal layer is provided to electrically connect said foil covering the entire other side of the first laminate with the ground conductors of the conductive pattern and the foil of the second laminate.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: March 29, 1994
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventor: Karl-Erik Leeb
  • Patent number: 5292054
    Abstract: The present invention relates to a method of manufacturing a heat transfer device, particularly a heat transfer device for cooling electronic components, having a metal plate and a plurality of cylindrical metal pins which are packed relatively densely on the plate and extend perpendicularly therefrom. The inventive method comprises the steps of cleaning the plate (1) and the pins (2) and treating the same with fluxing agent; loading the pins (2) into a pin holding device (4, 7) and affixing the pins by means of said device in mutually radial positions and holding the pins at an axial distance above the plate (1). Solder material (13) is applied to the plate (1) and caused to melt. The pins (2) are then lowered simultaneously down into the molten solder (13) and the solder is caused to solidify while maintaining the pins (2) in their fixed radial positions, whereafter the holder device (4, 7) is removed.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: March 8, 1994
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Karl-Erik Leeb, Ulf I. Holmberg
  • Patent number: 5261826
    Abstract: In a device for contacting shielded conductors, surrounded by shield and ground planes, a clamping means is disposed to press contact means connected to the conductors against each other as well as shield and ground planes which face each other and surround the contact means. A pad of an electrically conducting, elastic material is arranged between the clamping means and one of the contact means. The pad covers the contact area between the contact means and is in contact with the surrounding ground planes to form an electrically closed enclosure of the contact means.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: November 16, 1993
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Karl-Erik Leeb, Ulf I. Holmberg