Patents by Inventor Martina Köhler

Martina Köhler 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: 6533373
    Abstract: A cable conduit for a switchgear cabinet, having a rack assembled from rack legs, at least a part of which have several profiled sides on an inside facing an interior, which extend at an angle with respect to each other and to a diagonal line of the rack and have a row of fastening receivers, wherein the cable conduit has a U-shaped profiled receiving section with a base leg and two lateral legs and can be closed by a cover section, which can be locked on the lateral legs. A dependable attachment of the cable conduit with an optimal cable reception space is achieved because the base leg of the profiled receiving section is matched to at least a portion of the contour defined by the profiled sides of the inside of a frame leg, or the profiled sides of the insides of two frame legs which are connected with each other, and can be connected with the profiled sides.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: March 18, 2003
    Assignee: Rittal Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Matthias Müller, Martina Köhler, Heinz Schmitt
  • Patent number: 6425610
    Abstract: A control cabinet with a cabinet body, whose open front side can be successively closed by an inner door and a closing door presenting a closing device. The inner door can be fixed against the cabinet body at the top and at the bottom by means of a two-armed locking lever and the closing door can be fixed against the cabinet body by means of a locking bar. The closing door partly overlaps the inner door in the closing area. With mirror-symmetrical locking levers, no elements of the locking levers protrude over the free edge of the inner door in any position of the locking levers and the locking levers are easily operated.
    Type: Grant
    Filed: October 5, 2000
    Date of Patent: July 30, 2002
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Martina Köhler, Paul Root
  • Patent number: 6312068
    Abstract: In a row of adjacent switchgear cabinets with a frame, vertical frame pieces of adjacent switchgear cabinets are connected to each other and the top and bottom sides of the frame are closed by upper and lower metal sheets which have edges at least on the sides facing each other. The edges are staggered in relation to the outer sides of the adjacent frame pieces and form a type of groove with the end pieces of the edges and/or the profiled sides of the horizontal frame pieces facing each other. The grooves in an area of the top and bottom metal sheets of the adjacent switchgear cabinets are protected from water penetration because they are sealed respectively in the area of the top and/or bottom metal sheets of the switchgear cabinets by a covering strip running from the front face to the rear face of the switchgear cabinet flush with the top and bottom metal sheets.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: November 6, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Rolf Benner, Wolfgang Reuter, Paul Root, Martina Köhler, Udo Münch
  • Patent number: 6283565
    Abstract: A hinge for a switch cupboard, having a first hinge part and a second hinge part. The first hinge part is arranged on a cupboard door and the second hinge part is arranged on the body of the switch cupboard. The hinge can be used on both left-mounted and right-mounted cupboard doors and has two fixing positions. Thus, the cupboard doors can be fixed to the body in two different positions at a distance from each other in the axial direction of the hinge.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: September 4, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Martina Köhler, Markus Neuhof
  • Patent number: 6238028
    Abstract: A rack for a switching cabinet having vertical frame pieces. The vertical frame pieces have two protruding fastening elements, both of which contain a fastening section which is mounted parallel to the associated outer edges of the rack and a profiled side which is vertical to the associated outer edges of the rack. The fastening section and the profile edges have rows of fastening cavities spaced at equal distances from each other. This invention provides greater opportunity for mounting built-in fixtures on the rack frame when the distance between the profiled sides of one fastening attachment and the fastening sections of the other fastening attachment is the same as the distance between the fastening cavities or the space corresponds to a multiple of the dividing gap.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: May 29, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Rolf Benner, Martina Köhler, Wolfgang Reuter
  • Patent number: 6238027
    Abstract: A switching cabinet with a rack assembled from horizontal and vertical frame sections, in which a switching cabinet body enclosed by the rack is covered by a cabinet door and side walls, the cabinet door being hinged around one of the vertical frame sections and pivotal about the vertical pivot axis. To obtain improved access to the interior of the switching cabinet, at least one of the side walls is fixedly mounted on the rack or is hinged to pivot about a vertical axis.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: May 29, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Martina Köhler, Wolfgang Reuter, Rolf Benner
  • Patent number: 6217138
    Abstract: A frame section for a switching cabinet rack having at least one inner wall which faces the inside area of the switching cabinet and is fitted with a row of regularly spaced fastening cavities. The fastening cavities do not reduce rigidity to any significant degree. At the same time fixtures can be mounted on the fastening cavities in a stable manner by designing the fastening cavities as slotted openings with clear openings larger in the longitudinal direction of the frame section than the width of the clear openings perpendicular to the longitudinal direction.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: April 17, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Rolf Benner, Martina Köhler, Udo Münch, Wolfgang Reuter
  • Patent number: 6211466
    Abstract: A switching cabinet having a cabinet door pivotably fixed by hinges. The distance between the top side of the switching cabinet and the upper horizontal edge of the cabinet door is fitted with a covering element. The visual aspect of the switching cabinet is improved simply by ensuring that the covering element is secured to a holding device on the cabinet door.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: April 3, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Rolf Benner, Martina Köhler, Udo Münch, Wolfgang Reuter
  • Patent number: 6206494
    Abstract: An assembly unit with assembly cavities, which can be mounted on frame sections of a switching cabinet. One or more assembly elements can be installed on at least one part of the frame sections to support the assembly rail. The assembly rail can be easily secured to a frame section if the assembly rail has at least one profiled side with at least one insert cavity by which the assembly rail can be placed on the fastening element, and the fastening element can be moved in relation to the frame section in order to attach the assembly rail.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: March 27, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Rolf Benner, Martina Köhler, Udo Münch, Wolfgang Reuter
  • Patent number: 6174034
    Abstract: A switching cabinet having a rack with an upper and lower frame and vertical and horizontal struts which are disposed horizontally. The upper and lower frame have corner cavities, to which vertical frame profiles can be connected. The vertical frame profiles have profiled segments which are turned towards an inside of the rack. Access to the inside of the rack is improved when the vertical frame profiles may be mounted or dismounted afterwards which can be done with few components and involves little effort during mounting by including vertical profiles on at least one side of the rack, whose ends and profiled segments can be inserted into the corner cavity from the outer side of the rack, and by placing and fixing the profiled segments onto the connector of a corner cavity.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: January 16, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Rolf Benner, Martina Köhler, Udo M{umlaut over (u)}nch, Wolfgang Reuter