Patents Assigned to Lukas Hydraulik GmbH
  • Patent number: 8727317
    Abstract: The present invention relates to a portable rescue cylinder (1) having a hydraulic cylinder (2) which is operated hydraulically and which can extend, said hydraulic cylinder having a first end and a second end opposite the same, wherein a force is generated by means of enlargement of the distance between the first and the second ends, having a hydraulic tank (3), having a pump (4) for driving the hydraulic cylinder (2), having a power source for supplying the pump (4) with power, and having a switch device (6) for the operation of the hydraulic cylinder (2). In order to provide a device which is as comfortable as possible and has small dimensions, it is suggested that the hydraulic tank and the pump should be integrated components of the rescue cylinder. Particularly, the hydraulic tank (3) and the pump (4) are located in a housing (7) which is located directly on the rescue cylinder (1) and/or the hydraulic cylinder (2).
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: May 20, 2014
    Assignee: Lukas Hydraulik GmbH
    Inventors: Dietmar Lindner, Carsten Sauerbier
  • Patent number: 7451960
    Abstract: The invention relates to an apparatus for supporting a tool on an object. The apparatus has a frame and ways on the frame for fixing the apparatus to the object. The tool is attached to the apparatus and the latter supports itself against the object In addition, the frame displays an upper and a lower support claw that are effective even in an inclined disposition with respect to the object. The frame including the upper and lower support claws further forms a C-shape. Moreover, the upper as well as lower support claws are designed such tat the holding effect during loading of the apparatus arises through the canting of the two support claws with respect to a portion of the object located between the two support claws.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: November 18, 2008
    Assignee: Lukas Hydraulik GmbH
    Inventors: Uwe Kirchner, Wolfgang Bertleff
  • Patent number: 7409828
    Abstract: Control device 1 having a changeover valve 5, a pump 4 delivering operating medium, in particular a motor-operated pump or a hand pump, connection devices for connecting the control device 1 to at least two tools, in particular a first lifting cylinder 2 and a second lifting cylinder 3 or the like, the changeover valve 5 being operable in particular by hand; wherein a) the changeover valve 5, when the operator lets go of it, can be brought automatically into a basic position in which no pressure build-up in the region of the tools is possible, b) a control valve 7 is provided between the changeover valve 5 and the tools, and c) the control valve 7 can likewise be operated by hand by an operator.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: August 12, 2008
    Assignee: Lukas Hydraulik GmbH
    Inventor: Wolfgang Bertleff
  • Patent number: 7240490
    Abstract: A tool arrangement includes a tool unit 2, e.g. a cutting apparatus 2?, a spreader 2?, a squeezing device or the like, and a drive 3, a control and/or switching clement, as well as a first operating-medium circuit 4, in which tool arrangement a second operating-medium circuit 5 is provided, which is actively connected to the first operating-medium circuit 7 by a pressurized-media converter 6.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: July 10, 2007
    Assignee: Lukas Hydraulik GmbH
    Inventors: Klaus Baumüller, Otto Zeitler, Christoff Lasaroff, Dietmar Lindner
  • Patent number: 6942468
    Abstract: The invention relates to a portable hydraulic pump unit (1) comprising a housing (2), a pump (5), a drive motor (6) for the pump (5), in particular in the form of an electric drive motor, in addition to a reservoir (13) for hydraulic fluid. According to the invention, the housing (2) is tubular and (when viewed in cross-section) point symmetrical, e.g. cylindrical, square, triangular or polygonal. The advantage of the hydraulic pump unit is that is can be positioned and transported in the receptacles of conventional portable tank carriers, in particular for the tanks of protective breathing apparatus.
    Type: Grant
    Filed: May 26, 2001
    Date of Patent: September 13, 2005
    Assignee: Lukas Hydraulik GmbH
    Inventors: Carsten Sauerbier, Uwe Kirchner, Heinz Heller
  • Patent number: 6578821
    Abstract: The invention relates to a rescue apparatus 1 with two tool halves 4, 5 that are arranged swingably on a head component 2, which tool halves in each case display a working tip 6, at least one working tip 6 being attached to the tool half 4, 5 so as to be longitudinally displaceable.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: June 17, 2003
    Assignee: Lukas Hydraulik GmbH & Co., KG
    Inventors: Christoph Lasaroff, Heinz Heller
  • Patent number: 6305667
    Abstract: The invention relates to a lifting device for lifting heavy loads, e.g. derailed rail vehicles, for permanent or temporary installation, having at least one cylinder, in particular hydraulic cylinder, for actuating a mechanical ram, in which device cylinder 2 and ram 3 are separate from one another and the ram 3 is accommodated in a guide tube 4.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: October 23, 2001
    Assignee: Lukas Hydraulik GmbH & Co. KG
    Inventor: Heinz Heller
  • Patent number: 5682821
    Abstract: The invention relates to a displacement device for the horizontal displacement of heavy loads, especially of derailed rail vehicles or the like, having a lifting cylinder and a preferably hydraulically driven displacement mechanism, which allows the position of the load raised by the lifting cylinder to be varied, the lifting cylinder (2) being borne by a slide (6) which is horizontally movable, preferably in two opposite directions, the slide being disposed displaceably on the surface of a support and the piston rod (11) of a displacement cylinder arrangement being fixedly connected to the support without the one end of the piston rod (11) being latch-locked to the support in a displacement-dependent manner.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: November 4, 1997
    Assignee: Lukas Hydraulik GmbH
    Inventors: Heinz Heller, Wolf Kuhlmann, Dieter Hesse
  • Patent number: 5664500
    Abstract: A shifting device for horizontal shifting of heavy loads with at least one lifting cylinder to raise the load, a support, and a preferably hydraulically actuated shifting mechanism, wherein the shifting mechanism has at least one horizontally arranged shifting cylinder which by way of a locking tie-rod is mechanically lockable to the support in different positions on the latter's surface, and which engages in the range of the lifting cylinder or its support and effects a horizontal shifting of it relative to the support characterized in that in the tie-rod casing, the locking tie-rod can be brought vertically from a rest position to a locking position and vice versa, that the locking in the locking position is effective in both directions to the support and that the shifting cylinder can be acted on by force in both directions.
    Type: Grant
    Filed: August 31, 1995
    Date of Patent: September 9, 1997
    Assignee: Lukas Hydraulik GmbH
    Inventors: Dietmar Lindner, Dieter Hesse
  • Patent number: 5406826
    Abstract: A so-called rescue spreader is constructed with a pair of replaceable jaws that are mirror images of one another and are operatively positioned back-to-back. Each jaw is generally a triangle having a back side and a front side, with both sides extending from a base and converging at a tip where the sides define an included angle of approximately 20.degree. to 30.degree.. Corrugations on the back side are provided to reduce slippage. The front side along its half length extending from the tip is provided with a plurality of teeth and a circular cam is provided along the other half length of the front side.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: April 18, 1995
    Assignee: Lukas Hydraulik GmbH
    Inventors: Wolf Kuhlmann, Christoph Lasaroff, Dieter Hesse
  • Patent number: 5309706
    Abstract: A shackle-type connector for the rapid attachment of a round-linked chain to an external device, such as hydraulic rescue equipment. The connector includes a body having an attachment opening which is capable of removably receiving the device, to attach the connector thereon. The chain can be extended through a chain passage hole in the body of the connector. A holding slot communicates with the hole through a transition region. A securing nose defines a chain passage channel in the transition region. The chain can be drawn through the chain passage hole, and a link of the chain is then slid over the securing nose, through the chain passage channel and into the holding slot, whereby the surrounding links, which are rotated with respect to the link in the holding slot, cannot slide into the holding slot. Thus the securing nose secures the chain in the connector.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: May 10, 1994
    Assignee: Lukas Hydraulik GmbH
    Inventors: Christoph Lasaroff, Dieter Hesse, Wolf Kuhlmann