Patents Assigned to Rittal-Werk Rudolf Loh GmbH & Co. KG
  • Patent number: 5303893
    Abstract: A rotary coupling for connecting a control device housing to a support arm or an elbow of a support arm system, having a rotating ring fixedly connected to the control device housing and partially rotatable in relation to a coupling piece which is connected to the support arm or the elbow. For equalization of tolerances caused by insufficient twist rigidity of the support arm system, the invention provides that the coupling piece forms a peripheral bearing ring which is convexly arched outwardly and is received in and supported by two shell rings. The shell rings are connected to each other and have concavely arched bearing surfaces. The shell rings are rigidly mounted on the bearing ring of the coupling piece by a clamping cheek. The rotating ring is rotatably maintained on the shell rings by a support ring which is connected to the shell rings.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: April 19, 1994
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Matthias Schuler, Udo Munch, Wolfgang Reuter
  • Patent number: 5290612
    Abstract: A bracket for a suspension system for control units, control panels and the like, including a support body portion, having a substantially U-shaped base profile portion that is subdivided, by means of a separation rib extending parallel to its rib, into a closed supporting part and an open, U-shaped receiving part remote from the rib, in which continuous, longitudinally oriented screw receptacles are formed on the support part and the receiving part. To improve the torsional rigidity of the bracket and the entire suspension arrangement, the support part is stiffened in the longitudinal direction of the support body portion by means of two continuous diagonal ribs, which are joined together in the middle, and the screw receptacles of the support part are constructed in the corner regions that the diagonal ribs form with the base profile section.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: March 1, 1994
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Matthias Schuler, Udo Munch, Wolfgang Reuter
  • Patent number: 5275296
    Abstract: A rack for a control cabinet comprising a plurality of frame pieces which are connected to each other in the area of the rack corners. A quickly and easily assembled rack with high torsional stiffness is created where the front horizontal and vertical frame pieces as well as the rear horizontal and vertical frame pieces are miter-cut on both ends and fixedly welded together to form a front and rear frame. The frame pieces used as depth braces are closed off on both ends by fastening plates provided with at least two fastening screw receptacles. Correspondingly distributed through-bores are cut in the corner areas of the frame. In each corner area of the frame, a cover plate is fastened on the frame by fastening screws. The fastening screws are inserted into fastening bores of the cover plates and screwed through the through-bores of the frame into the fastening screw receptacles of the fastening plates connected to the depth braces.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: January 4, 1994
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Jurgen Zachrai
  • Patent number: 5211499
    Abstract: A fastener for affixing a mounting track to a wall of a switchbox includes a retainer block for supporting a mounting track, the retainer block having a cross-sectional size and shape generally conforming to that of the interior cavity of the track. The retainer block includes a stop plate formed on a retainer block face, the stop plate covering the end of the mounting track when the retainer block is supporting the track. A fastening bore is formed in that end of the retainer block facing the stop plate and a sealing stay or rib is disposed on the retainer block to encircle the fastening bore.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: May 18, 1993
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. Kg
    Inventor: Jurgen Zachrei
  • Patent number: 5184879
    Abstract: An air conditioning or cooling device for a control cabinet with a spacer frame constructed of horizontal and vertical frames sections, each having fastening bores closed by wall panels and a door of the cabinet and being in the shape of a box. The air conditioning or cooling device is designed with its two exterior dimensions being equal to or less than two corresponding clearances between the vertical and horizontal frame sections of one side of the spacer frame and the air conditioning or cooling device is installed in this side. The installation of the air conditioning or cooling device on or in one side of the control cabinet in different positions, with respect to the interior of the control cabinet, is simply accomplished since the outer end area of at least its vertical sides with fastening edges, can be optionally connected directly or with spacing elements to the facing vertical frame sections of the spacer frame.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: February 9, 1993
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Ansgar Brossardt, Manfred Immel, Heinrich Styppa
  • Patent number: 5142607
    Abstract: An optical wave guide splice box which can be installed in a control box or the like and which receives optical wave guide splicing cassettes. Incoming optical wave guide cables are split into optical wave guide fiber bundles and/or individual optical wave guide fibers and are connected in optical wave guide harnesses with outgoing individual optical wave guide fibers. At least a portion of the outgoing individual optical wave guide fibers are guided and connected to optical wave guide connectors in a front panel which closes off the optical wave guide splice box. Shunting, splicing and distribution of the optical wave guide exterior cables, the optical wave guide fiber bundles and the individual optical wave guide fibers is considerably easier, even in an optical wave guide splice box installed in a control box or the like.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: August 25, 1992
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Gianmaria Petrotta, Horst Besserer
  • Patent number: 5090476
    Abstract: This invention relates to an air-water heat exchanger with an exchanger unit and a blower contained in a housing, which can be placed on the cover of a control box or the like and which is provided on the side facing the cover with an inlet and an outlet opening, which are aligned with corresponding openings in the cover of the control box or the like. By a particular routing of the air in the area of the inlet and outlet openings of the exchanger unit, even in case of leakage of the exchanger unit, no water can come out of the inlet and/or outlet openings and reach the control box or the like.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: February 25, 1992
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Manfred Immel
  • Patent number: 5087104
    Abstract: A closure for a three-part control cabinet having a base cabinet, a pivot frame and an inspection window box with a lock plate having a first lock element positioned in the front of the inspection window box. Manipulation of the closure from the front of the control cabinet is only achieved when the activation element of the first lock element is coupled, fixed against relative torsion, with a first catch insert which is rotatably seated at the back of the inspection window box. The activation element has a locking projection and can be inserted into a first catch retainer, fastened to the front of the pivot frame, and can be secured therein by rotating it. Subsequent to the first catch retainer, the front of the pivot frame has a first bearing retainer for a second lock element, the activation element of which is coupled, fixed against relative rotation with a driving bar.
    Type: Grant
    Filed: October 8, 1990
    Date of Patent: February 11, 1992
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Roger Fursier, Claus-Dieter Bovermann
  • Patent number: 5082336
    Abstract: The invention relates to a control cabinet with a cabinet door in which a cutout has been provided, which cutout is enclosed by a cover. To obtain more space for additional assemblies in the area of the cutout of the cabinet door, the invention comprises a frame connected to a trough-like insert placed in the cutout of the cabinet door. The frame has a connecting section on the outside of the cabinet door which covers the edge area of the cabinet door adjoining the cutout and connects to a U-shaped closure frame which is open in the direction of the cabinet door. A cover is pivotally seated in the area of the lower horizontal edge of the insert, and can be brought into and maintained in a horiziontal position by means of cover hinges or cover stops. The cover can be fastened by means of a closure element in a closed position which covers the open end of the insert.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: January 21, 1992
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Udo Munch, Jurgen Zachrei
  • Patent number: 5052565
    Abstract: The invention relates to a device for fastening the end of a C-shaped mounting rail to a wall with holes of a control cabinet or of a frame piece of a control cabinet frame, having a fastening block which can be inserted into the end of the rail and which is adapted to the inside cross section of the mounting rail and fastened to the wall by means of a fastening screw. Fastening of the mounting rail only from the fastening side of the wall is achieved by the wall having a row of rectangular or square cutouts and, placed between them and offset by one-half spacing, a row of screw holes. The fastening block is closed off with a fastening plate on the side facing the wall. The fastening plate has an L-shaped hanger on the side facing the wall, which is adapted to the cutouts and the thickness of the wall and can be hung in a cutout.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: October 1, 1991
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Jurgen Zachrei
  • Patent number: 5035647
    Abstract: The invention relates to a device for securing a receptacle housing, positioned at the end of a cable, in an opening of a wall. The receptacle housing and the opening have a generally rectangular cross-sectional area and can be connected with each other in at least two positions, offset by 90.degree. from each other. The receptacle housing has detent springs which engage with the wall, from behind. A securing strap is fixed on the cable which is connected to the receptacle housing. The other end of the securing strap is connected to a cover. The cover can be mounted on the contact side of the receptacle housing. The cover can be guided through a groove-shaped recess while the securing strap is pushed through a side wall of the opening. The alignment between receptacle and opening, without impairment of the passage of the securing strap, is achieved in that the opening of the wall only has recesses for the securing strap of the cover in two side walls, located at right angles to each other.
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: July 30, 1991
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Helmut Schafer
  • Patent number: 5013104
    Abstract: A control console having a pedestal, console part and top. The front or back of the pedestal can be closed with a door. The console part is positioned on top of the pedestal and extends beyond the front of the pedestal. The top is positioned on the console part. The portion of the console part extending beyond the top can be closed with a hinged lid and the front of the top can be closed with a door or hinged lid. The installation depth of the top is increased by the back of the top being closed by an overhanging cover. The bottom and top of the cover are inclined with respect to each other and the side walls of the cover end flush with the facing vertical side walls of the top.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: May 7, 1991
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Hans-Martin Knoppel, Oskar Elm, Udo Munch
  • Patent number: 4998702
    Abstract: This invention relates to a suspension apparatus for control devices which can be assembled from a connection flange or connection rotary joint, support beam sections, elbow joints, or intermediate joints which can be connected with a wall or the body of a machine, and a coupling unit which can be connected to the control device. The support beam section comprises an essentially U-shaped base profile section and a cover profile section closing the same. The base profile section is divided, by means of a separating bar parallel to its crossbar, into a support part constructed as a closed hollow profile and an open U-shaped mounting part opposed to the bar. The connection bars, which proceed in a longitudinal direction in the support part and in the mounting part, are integrally formed with screw mountings.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: March 12, 1991
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Jurgen Debus, Lothar Lehr
  • Patent number: 4997155
    Abstract: This invention relates to a suspension apparatus for control devices which can be assembled from a connection flange or connection rotary joint, support beam sections, angle units, or intermediate joints, which can be connected with a wall or a machine body and a coupling unit which can be connected with the control device. The support beam sections have an essentially U-shaped base profile section and a closing cover profile secton. The base profile section, with a separating bar positioned parallel to its bar, is divided into a support part constructed as a closed hollow profile and an open U-shaped mounting part turned away from the bar. In the support part and in the mounting part, longitudinally directed and penetrating connecting bars are integrally formed with screw mountings. The angle comprising a corner connector and a covering cap creates, for such suspension apparatus, a rigid, highly-stressable corner connector between support beam sections placed perpendicular to one another.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: March 5, 1991
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Jurgen Debus, Lothar Lehr
  • Patent number: 4958259
    Abstract: A multi-purpose housing for electrotechnical equipment including two identical side walls, a top wall and a bottom wall. Component holders and slide rails for flange supports and back wall, door or inspection windows can be attached to the multi-purpose housing. The housing structure, installation of various electrotechnical devices, and attachment of a back wall, door or inspection window is significantly simplified by providing vertically continuous T-grooves on the inner surfaces of the side walls. The T-grooves are spaced at equal intervals. At least a portion of the T-grooves have an open groove base which makes a transition to a continuous screw channel having an approximately round cross section. Offset T-grooves are provided in corner units. Covering strips or connecting strips with tapped holes can be inserted into the T-grooves.
    Type: Grant
    Filed: December 14, 1989
    Date of Patent: September 18, 1990
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co., KG
    Inventors: Franco Berg, Claus-Dieter Bovermann
  • Patent number: 4953821
    Abstract: This invention relates to a suspension apparatus for control devices, control panels and the like, which can be assembled from a connection flange or connection rotary joint, support body sections, angle units, and intermediary joints which can be connected with a wall or a machine body, and a coupling unit which can be connected with the control device, the control panel or the like. There is a stable support body section providing easy installation of the connection lines and a simple connection with the adjacent parts of the suspension apparatus. The support body sections comprise an essentially U-shaped base profile section which with a separating bar proceeding in parallel to its bar is divided into a closed support part and an open, U-shaped mounting part turned away from the bar. Longitudinally directed connection bars with penetrating threaded reception mountings are integrally formed both on the support part as well as on the mounting part.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: September 4, 1990
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Wolfgang Reuter, Jurgen Debus, Lothar Lehr
  • Patent number: 4951980
    Abstract: A latch assembly includes a housing for inserting through an opening or breach in a door panel and secured to the panel by a retaining cage. In the preferred embodiment, the housing and the breach will have the same cross-sectional square shape. A retaining cage includes a retainer plate and a plurality of supporting legs and substantially surrounds the housing when the assembly is mounted on a door panel. At each cornering edge of the housing, a depression is formed for receiving a retainer extension formed at the end of each supporting leg. Each supporting leg also includes a support claw or tip which, in the mounted position, engages a surface of the door panel and pierces any non-conductive coating thereon so that the rotary bar handle and the other parts of the assembly may be electrically grounded. The cooperative configuration of the housing and the retaining cage permits mounting of the assembly in one of four positions.
    Type: Grant
    Filed: April 18, 1989
    Date of Patent: August 28, 1990
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Manfred Wetzel
  • Patent number: 4949867
    Abstract: This invention relates to an air conditioning device, particularly for a control panel, having a box-like lower housing part and a box-like cover which can be connected therewith. The air conditioning device can be installed on or in a mounting wall in accordance with this invention. For installation on a mounting wall, the bottom of the lower housing part and the mounting wall have connecting elements for attaching the lower housing part to the mounting wall. The lower housing part and the cover each have open sides directed towards one another and each have inwardly directed peripheral edges on the side walls. The edges of the lower housing part are turned towards the cover and have solidly attached threaded bolts. The edges of the cover have corresponding through-holes mateable with the threaded bolts. A peripheral sealing strip is inserted between the edges of the lower housing part and the cover.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: August 21, 1990
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Manfred Immel
  • Patent number: D339632
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: September 21, 1993
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventor: Manfred Immel
  • Patent number: D341962
    Type: Grant
    Filed: May 6, 1991
    Date of Patent: December 7, 1993
    Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KG
    Inventors: Claus-Dieter Bovermann, Jurgen Zachrai