Patents Assigned to Rittal-Werk Rudolf Loh GmbH & Co. KG
  • Patent number: 6374651
    Abstract: A closing device for a control cabinet door, machine casing or the like, having a security unit with a lock attached to the control cabinet door, machine casing or the like, with a first locking part and a second locking part fixed to the door frame, machine frame or the like. The two locking parts can be made to cooperate with each other or not by application of an electric signal. In a closing device there is a locking and unlocking mechanism suitable for use with all usual types of lock. Thus a lock is used which has a locking mechanism that can be rotated in different directions and in which a locking member subjected to a spring tension is movably guided. In addition, when in a locked position the locking member subjected to a spring tension prevents the rotation of the locking mechanism.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: April 23, 2002
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Bodo Thielmann, Frank Küster
  • Patent number: 6375561
    Abstract: A switch cupboard with devices for cooling the hot air present inside the same. At least one vertical face is closed off by a double-walled wall element whose outer and inner wall panel form an air duct with an extensive surface. The inner wall panel has several openings spread out from each other. The openings can be covered either with cover plates, fans which operate in two directions of rotation or connecting plates with sections of hose.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: April 23, 2002
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Walter Nicolai, Adam Pawlowski
  • Patent number: 6348745
    Abstract: A switchgear cabinet monitoring arrangement with a central control arrangement for monitoring, controlling and/or regulating switchgear cabinet functions, and having a base device with inputs and outputs, in which monitoring and control components and a voltage supply device are arranged. Adaptation to different requirements is achieved because the base device has several function card insertion slots. Several function cards with different monitoring, control, regulation and/or switching functions are provided with an appropriate identification and for selective insertion in the function card insertion slots. An identification device determines which function card insertion slots (2.1, . . . 2N) are occupied and of what type is the possibly inserted function card.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: February 19, 2002
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Sven Laurösch, Markus Hain, Heinrich Strackbein
  • Patent number: 6348656
    Abstract: A housing for receiving electrical and/or electronic built-in units, having a rack. The housing has vertical frame legs at least in comer areas, wherein an opening is formed between the two frame legs at a front of the rack, through which the housing interior is accessible. A blind frame has vertically extending profiled screening sections which cover the vertical profiled frame sections at least partially and is pivotally connected to the front of the rack. In order to increase the options for outfitting the switchgear cabinet and/or the technical switchgear equipment in the area of the opening at the front, a separate profiled function section extending in the linear profile direction is connected to the profiled screening section and has at least one function projection protruding toward the switchgear cabinet interior.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: February 19, 2002
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Bodo Thielmann, Matthias Müller
  • Patent number: 6346882
    Abstract: A switchgear cabinet monitoring arrangement with a monitoring unit (ÜE) having a control device (ST), an indicator control and inputs for connecting sensors, outputs for connecting actuators, and a programming unit which is or can be connected with the monitoring unit, and with an indicator device. An improved adaptation to various uses of the switchgear cabinet is achieved because visual and/or acoustical notices for the distribution via the indicator device can be provided and changed by the programming unit and can be transmitted to the monitoring unit and stored in a memory device. As a function of the switchgear states detected via the sensors, the notices can be transmitted by the control device to the indicator device and can be displayed on the indicator device.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: February 12, 2002
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Markus Hain, Michael Seelbach
  • Patent number: 6323422
    Abstract: A cable entry for a switch cabinet having an opening positioned in a floor of the switch cabinet and surrounded by a connecting layer. The opening can be closed off with bottom plates which can be placed one next to each other and connected to the connecting layer. The sides of adjoining bottom plates assigned to each other have angled edges fitted with sealing strips. The cables are fed into the switch cabinet between the sealing strips and sealed by deformation of the sealing strips. This invention provides for the edges of the bottom plates to be configured as a double fold, a first section of which points towards the upper or lower side of the bottom plate while the second end section of the double fold extends across the first section and protrudes from the lower or upper side of the bottom plate. The sealing strips extend across the width of the end section of the double fold.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: November 27, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Wolfgang Reuter
  • Patent number: 6315656
    Abstract: A fan with an input mounting plane and an output mounting plane. The fan is adapted to be mounted on a control cabinet wall member with an aeration passage. This invention produces an air flow which is as dust-free and turbulence-free as possible. For this purpose, the input mounting plane and the output mounting plane form an acute angle.
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: November 13, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Adam Pawlowski
  • Patent number: 6315132
    Abstract: A rack for a switchgear cabinet with vertical and horizontal profiled frame sections, wherein two of the horizontal profiled frame sections are connected by a corner connector to at least one rack corner area. Two horizontal profiled frame sections are connected with each other, forming a corner angle and having a receptacle, which is open toward the exterior of the rack. The receptacle is symmetrical with respect to a bisecting line dividing an angle of the corner angle. A corner connector is fixed in place in the corner connector. The vertical profiled frame section can be fixed in place in the receptacle using a fastening shoulder of the corner connector. The vertical profiled frame section can selectively be designed symmetrical or asymmetrical with respect to the bisecting line of the angle of the receptacle. The corner connector has a compensating element for fixing the asymmetrical profiled frame section in place.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: November 13, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Marc Hartel, Walter Nicolai
  • 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: 6285157
    Abstract: A fan cooler for electric or electronic sub-assemblies having a control circuit with a control stage for controlling the speed of rotation of a fan motor connected to the control stage depending on set values. To achieve a polyvalent operation with a simple design, the fan motor is a phase-controlled asynchronous motor, the control circuit has a microcontroller that controls the control stage, an optic coupler is connected between the control stage and the microcontroller, and the microcontroller determines the operating angle for controlling the fan motor on the basis of the set values and the zero crossing of a control signal.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: September 4, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Markus Hain, Jörg Kreiling
  • 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: 6273533
    Abstract: A frame piece for a rack of a switching cabinet. With minimum material an optimum result is obtained with regard to fastening planes and fastening direction as well as stability. A profile inside and a profile outside are used to form the frame piece as a closed hollow profile with one or two longitudinally directed hollow spaces. The profile outside delineates a free space to an outside corner edge of the rack. The profile inside has a profile section with several rows of fastening seats or several profile sections at an angle with respect to one another with at least one series of fastening seats. The profile inside and the profile outside form outside edges in a region of the right-angled abutting outsides of the rack. The outside edges are designed as double-layer sealing struts or connected to them in a direction to the outside corner edge connecting struts with or without receiving grooves for sealing elements.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: August 14, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Walter Nicolai, Udo Münch, Georg Vogel
  • Patent number: 6259604
    Abstract: A receiving housing having a framework which has vertical frame sections, a pull-out element being secured by a support to at least two vertical frame sections. The pull-out element can be pulled out at the front from the opened receiving housing. An electrical apparatus, for example the central processing unit of a computer is deposited on the pull-out element and connection cables are fed to the electrical apparatus. In order to improve the cable arrangement, a power supply chain is secured by one of its chain ends to the support and by its other chain end to the pull-out element. The power supply chain receives the connection cable.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: July 10, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Frank Küster
  • 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: 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: 6222448
    Abstract: A switchgear cabinet with a central control device for monitoring and controlling built-in units and/or attached units of the switchgear cabinet in a predetermined manner. A simple adaptation to various requirements is offered here, because central control device has components of a personal computer, through which it is programmable and by means of which monitoring, control and/or regulation takes place in accordance with predetermined programs.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: April 24, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wilfried Beck, Markus Hain, Jörg Kreiling
  • 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: 6213576
    Abstract: A window unit installed on a trim element of a switchgear cabinet. The window unit contains a window element that is coupled to the trim element in pivoted fashion. In order to allow a simple mounting of the window unit on the trim element, a frame is attached to and mounted on the trim element, and the window element is hinged to the frame.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: April 10, 2001
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Matthias Müller, Udo Münch, Heinz Schmitt, Jörg Wirbelauer
  • 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: D456403
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: April 30, 2002
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Kay-Uwe Witte