Patents Assigned to TOX Pressotechnik GmbH
  • Patent number: 7681296
    Abstract: A method and tool for producing a press joint connection, in which portions of the radial lateral walls of an opening of a die are configured as flexible displaceable segments, whereas other sections, when viewed from a periphery of the opening, remain rigidly connected to the die.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 23, 2010
    Assignee: Tox Pressotechnik GmbH & Co. KG
    Inventor: Eugen Rapp
  • Publication number: 20090133393
    Abstract: A method is disclosed for operating a hydropneumatic device (1) for pressure multiplication, with a working piston and a multiplier piston (9) for pressure multiplication on to the working piston and with an accumulator piston (3) for an urgent movement of the working piston by forcing hydraulic fluid out of an accumulator chamber (12), wherein a ventilation opening (13) is provided in the accumulator chamber (12), through which air drawn into the accumulator chamber (12) can be discharged during a maintenance process. According to the invention for an operating mode in which power strokes are executed, the hydraulic fluid volume in the accumulator chamber (12) is discharged below the ventilation opening (13) in the accumulator chamber. The hydraulic fluid pump is additionally disclosed.
    Type: Application
    Filed: September 19, 2008
    Publication date: May 28, 2009
    Applicant: TOX PRESSOTECHNIK GMBH & CO. KG
    Inventors: Bernd SCHAD, Georg GERNERT, Werner MOTZ, Eberhard DIETZEL
  • Publication number: 20090038470
    Abstract: Proposed is a hydro-pneumatic pressure transformation device with a working piston (3) and a transformer piston (17) for transforming the pressure exerted upon the working piston (3), wherein the transformer piston (17) features a working stroke chamber (19) for the power stroke and a return stroke chamber (15) for the return stroke, and wherein the working stroke chamber (19) can be subjected to an operating pressure for the power stroke. According to the invention, pressurization means are provided for changing over the return stroke chamber (15) between a low pressure that lies at least approximately in the range of atmospheric pressure or at atmospheric pressure and an intermediate pressure that lies between the low pressure and the operating pressure during the course of the power stroke and the return stroke. A method for operating a hydro-pneumatic device is also proposed.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 12, 2009
    Applicant: TOX PRESSOTECHNIK GMBH & CO. KG
    Inventors: Bernd SCHAD, Georg GERNERT, Werner MOTZ, Eberhard DIETZEL, Eugen RAPP
  • Publication number: 20090007738
    Abstract: The invention relates to a method and tool for producing a press joint connection. According to the invention, portions of the radial lateral walls of the matrix opening (3) are configured as flexible displaceable segments, whereas other sections (5), when viewed from the periphery of the matrix opening (3), remain rigidly connected to the die.
    Type: Application
    Filed: June 17, 2008
    Publication date: January 8, 2009
    Applicant: TOX Pressotechnik GmbH & Co. KG
    Inventor: Eugen Rapp
  • Publication number: 20080289169
    Abstract: An apparatus and method for joining the assembly components that allows for the adjustment of working stroke and press forces during operation in order to control the thickness of the resulting joint point.
    Type: Application
    Filed: May 23, 2008
    Publication date: November 27, 2008
    Applicant: TOX PRESSOTECHNIK GMBH & CO. KG
    Inventor: Eugen Rapp
  • Publication number: 20080245067
    Abstract: A hydropneumatic pressure transmission device having a working piston and a transmitter piston for pressure transmission to the working piston is proposed, with the working piston being guided in a housing space in such a way that, coupled to the movement of the working piston, hydraulic fluid must flow from a first region via a first connecting section into a second region. According to the invention, a switchable second connecting section is provided so as to be connected parallel to the first connecting section.
    Type: Application
    Filed: March 20, 2008
    Publication date: October 9, 2008
    Applicant: Tox Pressotechnik GmbH & Co. KG
    Inventors: Eugen RAPP, Bernd SCHAD, Peter WILHELM, Georg GERNERT
  • Patent number: 6722013
    Abstract: The invention relates to a method, a tool and a punch (1) for joining a sunken punch to one or more metal plates (2, 3). According to said method, in a single step, the plate or plates are deep-drawn into a deep-draw opening (5) of a female mould or then possibly crushed so that the displaced material fixes and joins the punch (1) to the plate or plates in a positive fit. The punch (1) may present further possibilities for engagement for creating a connection to other components.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: April 20, 2004
    Assignee: TOX Pressotechnik GmbH
    Inventor: Eugen Rapp
  • Patent number: 6502395
    Abstract: The invention relates to a hydropneumatic pressure intensifier comprising a radial seal (24, 27). Said seal is arranged between working pistons (2) and the cylinder bore which accommodates said pressure intensifier or in a bore hole (15) between the working chamber (3) and a storage area (14), whereby the radial seals consist of viscoplastic and flexible synthetic material.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: January 7, 2003
    Assignee: TOX Pressotechnik GmbH & Co., KG
    Inventor: Eugen Rapp
  • Publication number: 20020092156
    Abstract: A machine tool for manual actuation is proposed, in which an intermediate rotary bearing, which has a retaining handle, is disposed on the housing that receives the tool and an abutment, and a cantilevered beam which leads to a rotatable retaining device is secured to the intermediate rotary bearing.
    Type: Application
    Filed: November 21, 2001
    Publication date: July 18, 2002
    Applicant: TOX Pressotechnik GmbH & Co. KG
    Inventor: Wolfgang Pfleghar
  • Patent number: 5943862
    Abstract: A machine tool which operates with a hydropneumatic pressure intensifier whose step piston is braked hydraulically in particular towards the end of its stroke by forcing hydraulic fluid from a braking cavity formed during the stoke via a choke point.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: August 31, 1999
    Assignee: Tox Pressotechnik GmbH
    Inventor: Viktor Malina
  • Patent number: 5836161
    Abstract: A hydro-pneumatic pressure booster is proposed in which the reservoir chamber is limited by an elastic partition wall instead of a sliding piston.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: November 17, 1998
    Assignee: Tox Pressotechnik GmbH
    Inventor: Viktor Malina
  • Patent number: 5381661
    Abstract: The invention relates to a hydraulic pressure transformer, wherein a storage chamber and a work chamber are connected with each other via an overflow bore into which a plunger piston dips to generate a pressure stage and thereby separates the two chambers for generating a high pressure in the work chamber. An additional connecting conduit with a check valve is provided between the work chamber and the storage chamber.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: January 17, 1995
    Assignee: TOX-Pressotechnik GmbH
    Inventor: Viktor Malina
  • Patent number: 5377488
    Abstract: A hydro-pneumatic pressure transformer with a storage piston fixed between storage oil and compressed air, which furthermore is centrally penetrated by a plunger piston, wherein, for the separation of oil from water, relief grooves are provided on the jacket face as well as in the wall of the central bore, which are connected with each other and are pressure-relieved via a ventilating bore leading to the exterior.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: January 3, 1995
    Assignee: Tox-Pressotechnik GmbH
    Inventor: Viktor Malina
  • Patent number: D518494
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: April 4, 2006
    Assignee: TOX Pressotechnik GmbH & Co. KG
    Inventor: Eugen Rapp