Patents Assigned to Rittal-Werk Rudolf Loh GmbH & Co. KG
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Patent number: 5911393Abstract: An inclination adapter for a support arm system, the adapter having a base part with an adjusting spindle and an inclination member, the base part and the inclination member pivotably connected to each other and the pivot movement performed via a coupling member which can be adjusted by the adjusting spindle. An inclination adapter which is sufficiently stable for a support arm system and has simple parts is produced because the base part and the inclination member comprise connection plates with central openings. Coupled spaced-apart, mutually facing bearing bars are integrally formed on the base part and the inclination member, respectively, and mounted to be pivotable parallel to the connection plates via the base part and the inclination member.Type: GrantFiled: April 28, 1998Date of Patent: June 15, 1999Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventor: Wolfgang Reuter
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Patent number: 5899545Abstract: The invention pertains to a frame for a switchgear cabinet. The frame has horizontal and vertical frame members and depth struts; open sides of the frame can be closed by wall elements and at least one door. Mounting a door is simplified in that the depth members have extensions which project beyond the horizontal and vertical frame members at the front and/or back end of the frame and which have with vertically directed holes for hinge pins or closing bolts.Type: GrantFiled: November 20, 1996Date of Patent: May 4, 1999Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Horst Besserer, Marc Hartel, Jurgen Zachrai
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Patent number: 5897276Abstract: A U-shaped clip-on slide nut with two parallel sliding limbs provided with notch elements and capable of being clipped onto an undercut ridge. One sliding limb has a bore and the other limb is provided with a threaded bore aligned with the bore and accommodating a clamping screw. The invention facilitates fixing of a component on the ridge in that the bore is a blind bore, the clamping screw is a countersunk screw, and at least one sliding limb also has a screw receptacle for a securing screw.Type: GrantFiled: August 29, 1997Date of Patent: April 27, 1999Assignee: Rittal-Werk Rudolf Loh Gmbh & Co. KGInventor: Marc Hartel
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Patent number: 5885094Abstract: A connecting terminal for a busbar in a busbar system in which the busbar has an n-agonal cross-section (n.gtoreq.3) with longitudinal undercut acceptor grooves in its outer sides. A connecting terminal having simple parts and which is easy to fit has two terminal sections which can be fitted on the busbar and connected together, and can be inserted with securing components in recesses in the busbar and secured transversely therein. The terminal sections form a terminal chamber over an outside of the busbar directed transversely thereto and securing screws can be adjusted in webs of the terminal sections away from the outside of the busbar which clamp terminal sections in the terminal chamber to a line inserted therein with a connection to the outside of the busbar.Type: GrantFiled: May 27, 1997Date of Patent: March 23, 1999Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventor: Hans Wagener
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Patent number: 5857353Abstract: The invention relates to a wall air conditioning apparatus for a control panel, with a fan and a lamellar heat exchanger, featuring a box-like housing with an upper inlet opening and a lower outlet opening in the wall that faces the control panel, whereby the fan is arranged behind the inlet opening and the lamellar heat exchanger is arranged under the fan and over the outlet opening at an acute angle to this wall. For improved ventilation and drainage of condensation water, it is provided that the lamellae of the lamellar heat exchanger are at an acute angle to the floor of the housing and drop off toward the wall that faces away from the control cabinet, and that the floor of the housing is provided with a drain for condensate.Type: GrantFiled: March 12, 1997Date of Patent: January 12, 1999Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Stefan Schneider, Adam Pawlowski
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Patent number: 5817977Abstract: A busbar system with busbars fitted in a trough-like lower securing section extending over a length. A clamping arm perpendicular is secured to a securing surface of the lower securing section on which adapters fitted with terminals can be fitted and covered. The adapters can be secured to the lower securing section by mechanical catches. This invention improves mechanical securing of covers and adapters because the lower securing section has an outer wall and an inner wall longitudinally on both sides forming a longitudinal catch recess. The outer walls also have an outwardly directed longitudinal catch web, and retaining springs with catch webs of the side walls of the cover and adapter housing that run parallel to the busbars can be engaged in the longitudinal catch apertures and additional components securable to the adapter housing can engage with retaining springs on the outwardly directed longitudinal catch webs of the outer walls of the lower securing section as a tilting safeguard.Type: GrantFiled: March 24, 1997Date of Patent: October 6, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Eberhard Biermeier, Mouhamadou Ousmane, Hans Wagener
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Patent number: 5806946Abstract: A switchgear cabinet with a frame made up of frame members and corner joints. The open sides of the frame are or may be closed by side walls, a rear wall, a bottom plate, a cover plate and at least one door. A special design of the frame members in the area of their outer edges and of the corner joints makes it simple to attach a door.Type: GrantFiled: April 28, 1997Date of Patent: September 15, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Rolf Benner, Walter Nicolai, Heinrich Strackbein
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Patent number: 5807143Abstract: A connecting terminal for a busbar and a connecting cable having a hook strap which can be pushed on the busbar. A clamping strap can be adjusted by an attachment screw which clamps the connecting cable to the busbar. A holding strap provisionally holds the hook strap pushed on the busbar. The cost of parts and assembly can be reduced without interference with the function because the holding strap is pushed from the direction of an outside on a transverse leg of the hook strap and extends with lateral legs that act as holding springs, into receivers of the lateral legs of the hook strap. The holding strap has a through-bore for the attachment screw. A transverse leg of the holding strap extends on both sides past the hook strap and forms receivers for adjustable fixing of the lateral legs of the clamping strap which is inserted between the lateral legs of the hook strap.Type: GrantFiled: January 13, 1997Date of Patent: September 15, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventor: Hans Wagener
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Patent number: 5801331Abstract: A switchgear cabinet with a door and with a cover secured to its top side. In order to make it easier to mount the cover on the switchgear cabinet, the cover has a bottom part connected to the top side of the switchgear cabinet and a top part that covers the bottom part. The top part is joined at a rear side to the bottom part by plug or hinge joints and has at its front side holding flaps that are hooked and held by a bent border of the switchgear cabinet door when the cover and door are in their closed position.Type: GrantFiled: February 4, 1997Date of Patent: September 1, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventor: Jurgen Zachrai
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Patent number: 5794895Abstract: A device for securing cables and conduits in switchgear cubicles with a securing bracket which is releasably secured to a support, a plate or a rail in the cubicle, and, to receive the cables and conduits has a bracket section projecting from a securing plate which has an inwardly angled end section which is engaged by a cover section that also projects from the securing plate, leaving an insertion aperture. The device can easily be built into switchgear cubicles using simple parts because a catch bracket is used to engage with the securing plate of the securing bracket and because securing side arms of the catch bracket can engage in suitably spaced and sized engagement slots in the support, the plate or the rail.Type: GrantFiled: March 20, 1997Date of Patent: August 18, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Horst Besserer, Hans-Ulrich Deusing
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Patent number: 5791115Abstract: A frame leg for a rack of a switchgear cabinet having two partial profile strips produced from material strips in a stamping and bending process, wherein the partial profile sections overlap each other with partial sections in connecting areas and are fixedly connected with respect to each other. The stability, the torsional stability and sealing of a frame leg of this type can be improved with negligible outlay. Prior to or during the stamping and bending process of the two partial profile sections, the partial sections included in the connecting areas are provided with a curable adhesive layer at least in one of the partial sections, and that the cured adhesive layers connect the partial sections of the two partial connecting sections included in the connecting areas in a fixed manner.Type: GrantFiled: October 3, 1996Date of Patent: August 11, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Walter Nicolai, Georg Vogel
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Patent number: 5775051Abstract: A frame member for a switchgear cabinet frame, designed as an inwardly open hollow section having two perpendicular sides that form outer sides of the frame. An easily constructed frame member combines features that provide a simple solution to meeting many requirements of a switchgear cabinet frame.Type: GrantFiled: May 2, 1997Date of Patent: July 7, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Walter Nicolai, Heinrich Strackbein, Udo Munch, Adam Pawlowski, Horst Besserer, Matthias Schuler, Markus Neuhof
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Patent number: 5772296Abstract: The invention relates to a switchgear cabinet with a frame which is composed of frame members and which can be closed by a cover plate, side panels, a rear wall, and a door. To fit both optical and functional elements easily to the corners of the frame, the horizontal depth struts are designed as sections open on the outside, and the cover plate and/or side panels have chamfers which at least partly overlap the outside of the sections so that the chamfer and the outer side form a holder into which a plug-in rod of a corner piece can be inserted.Type: GrantFiled: December 11, 1996Date of Patent: June 30, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Marc Hartel, Jurgen Zachrai
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Patent number: 5769916Abstract: A filter ventilator for installation in an opening of a wall of a switchgear cabinet or the like, having a base housing receiving the filter, which is covered with a finned screen and which is connected with a ventilator on a side facing away from the finned screen. For a considerably simplified mounting of the filter ventilator, detent cams are molded on the base housing for fastening the ventilator. The detent cams engage bores in the facing flange of the ventilator. L-shaped holding elements are formed on the base housing which, facing the flange of the ventilator which faces away from the finned screen, have detent cams which engage bores of the flange. The L-shaped holding elements and the base housing form receivers, into which the ventilator, which is placed angularly offset on the base housing, can be rotated to a stop.Type: GrantFiled: October 4, 1996Date of Patent: June 23, 1998Assignee: Rittal--Werk Rudolf Loh GmbH & Co. KGInventor: Manfred Immel
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Patent number: 5769519Abstract: A switchgear cabinet having a framework secured on a frame-like base. The framework has branches and is closed or closable by wall elements and at least one door. In order to design a switchgear cabinet that is as earthquake-proof as possible, a bottom side of the branches of a lower frame of the framework is connected by a plate-like damper frame to the top side of the base, which in turn may be fixed to a cabinet supporting surface.Type: GrantFiled: February 10, 1997Date of Patent: June 23, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventor: Walter Nicolai
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Patent number: 5761797Abstract: A process for the erection of a switch cabinet and installation of components therein in which portions of the framework of the switch cabinet are assembled to form a partial frame structure. Thereafter, the services are installed and wired within the partial frame structure. The assembly of the framework is then completed and the walls and doors secured thereto so as to form an enclosed switch cabinet with the services installed inside.Type: GrantFiled: August 7, 1996Date of Patent: June 9, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Horst Besserer, Udo Munch, Markus Neuhof, Walter Nicolai, Adam Pawlowski, Matthias Schuler, Heinrich Strackbein
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Patent number: 5749476Abstract: A rack for a switching cabinet comprising a plurality of frame parts and having fastening holes provided inside of the frame pieces forming internal edges of the rack. The frame pieces form only a frame support. At least a portion of the frame pieces are rigidly or detachably connected to a plurality of mounting rails which extend over at least a portion of the length of a corresponding frame piece, and along with the two profile sides having rows of fastening holes, form portions of internal edges.Type: GrantFiled: April 10, 1996Date of Patent: May 12, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Horst Besserer, Udo Munch, Markus Neuhof, Walter Nicolai, Adam Pawlowski, Matthias Schuler, Heinrich Strackbein
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Patent number: D397678Type: GrantFiled: September 12, 1996Date of Patent: September 1, 1998Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Achim Edelmann, Michael Diebel, Bernd Georg, Thomas Schafer
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Patent number: D405766Type: GrantFiled: October 10, 1997Date of Patent: February 16, 1999Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventors: Mark Hartel, Ralf Dahmer
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Patent number: D410230Type: GrantFiled: September 15, 1997Date of Patent: May 25, 1999Assignee: Rittal-Werk Rudolf Loh GmbH & Co. KGInventor: Kay-Uwe Witte