Patents by Inventor Wolfgang Bertleff
Wolfgang Bertleff 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).
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Publication number: 20130139498Abstract: A control apparatus for a first and a second tool (1, 2) operated by means of a pressure medium, in particular hydraulic oil, includes a first supply circuit (3) for the first tool (1) and a second supply circuit (4) for the second tool (2). The control apparatus can be connected to a first pressure line (20) and to a second pressure line (21) of a control device to be operated manually, by which control device the flow rate at the first tool (1) and at the second tool (2) can be changed.Type: ApplicationFiled: August 10, 2011Publication date: June 6, 2013Applicant: LUKAS HYDRAULIK GMBHInventors: Wolfgang Bertleff, Carsten Sauerbier
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Patent number: 7451960Abstract: 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: GrantFiled: July 20, 2004Date of Patent: November 18, 2008Assignee: Lukas Hydraulik GmbHInventors: Uwe Kirchner, Wolfgang Bertleff
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Patent number: 7409828Abstract: 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: GrantFiled: October 14, 2005Date of Patent: August 12, 2008Assignee: Lukas Hydraulik GmbHInventor: Wolfgang Bertleff
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Publication number: 20060081120Abstract: 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: ApplicationFiled: October 14, 2005Publication date: April 20, 2006Applicant: LUKAS Hydraulik GmbHInventor: Wolfgang Bertleff
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Patent number: 6959816Abstract: A distribution switch for sorting and guiding parts, particularly workpieces made of plastic, includes rods which are movable axially parallel to one another. The rods define paths which guide the parts in question into at least two different receiving elements while either forming a slope or leaving an opening in the center, depending on a predeterminable position of the rods. The rods correspond with guide elements through which they are movable substantially horizontally, in that drive units are provided, by which means the rods can be moved independently toward one another or away from one another along their longitudinal axes, and in that the lines can be changed in length depending on the position of the rods.Type: GrantFiled: June 20, 2001Date of Patent: November 1, 2005Assignee: Demag Ergotech GmbHInventor: Wolfgang Bertleff
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Publication number: 20050109995Abstract: The invention relates to a support apparatus for supporting a tool, especially a rescue tool as, for example, a spreading cylinder or the like, on an object, especially a vehicle part, which support apparatus has a frame and means on the frame for fixing the support apparatus to the object, wherein the tool is attached to the support apparatus and the latter supports itself against the object, wherein the frame 2 displays an upper 3 and a lower support claw 4 that are effective even in an inclined disposition with respect to the object, the frame 2 including the upper and lower support claws 3, 4 forms a C-shape, and the upper as well as lower support claws 3, 4 are designed such that the holding effect during loading of the support apparatus arises through the canting of the two support claws 3, 4 with respect to a portion of the object located between the two support claws 3, 4.Type: ApplicationFiled: July 20, 2004Publication date: May 26, 2005Applicant: LUKAS HYDRAULIK GMBHInventors: Uwe Kirchner, Wolfgang Bertleff
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Publication number: 20040016678Abstract: A distribution switch for sorting and guiding parts, particularly workpieces made of plastic, includes rods which are movable axially parallel to one another. The rods define paths which guide the parts in question into at least two different receiving elements while either forming a slope or leaving an opening in the center, depending on a predeterminable position of the rods. The rods correspond with guide elements through which they are movable substantially horizontally, in that drive units are provided, by which means the rods can be moved independently toward one another or away from one another along their longitudinal axes, and in that the lines can be changed in length depending on the position of the rods.Type: ApplicationFiled: January 10, 2003Publication date: January 29, 2004Inventor: Wolfgang Bertleff
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Patent number: 5407083Abstract: An apparatus for sorting and essentially vertically guiding workpieces, particularly products of plastics material is arranged between a production machine and at least two subsequently arranged units for producing, conveying or storing. A hopper which can be fastened in a simple manner is arranged in the area in which the workpieces are dropped vertically from the production machine, A frame which is rotatable about a horizontal axis of rotation is mounted at the hopper opening. Webs are fastened to sides of the frame which extend parallel to the axis of rotation. The other ends of the webs are connected to rods arranged spaced from the opening of the hopper. By rotating the frame about its axis of rotation, the webs can be stretched in such a way that an inclined plane is formed along which the workpieces are conveyed in a sliding manner to the subsequently arranged units.Type: GrantFiled: September 21, 1993Date of Patent: April 18, 1995Assignee: Mannesmann AktiengesellschaftInventor: Wolfgang Bertleff
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Patent number: 5302105Abstract: A method for changing of mold blocks on an injection molding machine, in which the mold block can be clamped in a centered position between a movable clamping plate and a fixed clamping plate and, for replacement of the mold, can be moved out of the machine parallel to the clamping surface. Upon the installation of the mold, the mold block is initially substantially restricted in its freedom of movement in the open condition of the clamping plates, in the direction of the center axis and in a direction perpendicular vertically or horizontally thereto. After being restricted in movement, the mold block is gripped from the outside in the direction of the center axis of the injection molding machine in order to avoid possible tilting movements towards the clamping plate and is held in a vertical position with the avoidance of possible tilting movements in the direction of the center axis of the injection molding machine during the movement towards each other of the clamping plates for clamping the mold block.Type: GrantFiled: May 13, 1992Date of Patent: April 12, 1994Assignee: Mannesmann AktiengesellschaftInventor: Wolfgang Bertleff