Patents by Inventor Erwin Weber

Erwin Weber 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).

  • Publication number: 20200070176
    Abstract: A cutting unit for recovering gluten from a mixture containing starch and gluten, having a housing in which is formed a cutting chamber having an inlet and an outlet. A first shaft, which is mounted in a rotatable manner in the housing, has a multiplicity of first disc-like cutting tools, which are fitted in a rotationally fixed manner on the first shaft, wherein in each case two adjacent cutting tools of the multiplicity of first cutting tools are spaced apart from one another axially to form an interspace. A second shaft, which is mounted in a rotatable manner in the housing is arranged parallel to the first shaft and has a multiplicity of second disc-like cutting tools, which are fitted in a rotationally fixed manner on the second shaft, wherein in each case two adjacent cutting tools of the multiplicity of second cutting tools are spaced apart from one another axially to form a further interspace.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 5, 2020
    Inventors: Stefan Weigl, Herbert Brunner, Achim Dehnz, Dominik Hindera, Franz Kneidl, Thomas Schmitt, Stefan Schoeberl, Erwin Weber, Horst Engl
  • Patent number: 10539136
    Abstract: A method for fixing rotary pistons in a rotary piston pump and a method for dismantling rotary pistons of a rotary piston pump, where the rotary piston pump has two counter-rotating rotary arranged in a pump space on drive shafts. The rotary pistons each include a seating for the drive shafts. The respective drive shaft is arranged and fixed with an end region in the seating of the respective rotary piston. A diameter of the drive shafts in the end region can be widened elastically. In an operational state, in which the rotary pistons are arranged on the respective drive shafts, a frictional connection is formed between the respective seating of the rotary piston and the end region of the respective drive shaft.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: January 21, 2020
    Assignee: NETZSCH Pumpen & Systeme GmbH
    Inventors: Stefan Weigl, Franz Kneidl, Thomas Schmitt, Achim Dehnz, Dominik Hindera, Mathias Obermaier, Markus Rosam, Erwin Weber
  • Publication number: 20170306949
    Abstract: A method for fixing rotary pistons in a rotary piston pump and a method for dismantling rotary pistons of a rotary piston pump, where the rotary piston pump has two counter-rotating rotary arranged in a pump space on drive shafts. The rotary pistons each include a seating for the drive shafts. The respective drive shaft is arranged and fixed with an end region in the seating of the respective rotary piston. A diameter of the drive shafts in the end region can be widened elastically. In an operational state, in which the rotary pistons are arranged on the respective drive shafts, a frictional connection is formed between the respective seating of the rotary piston and the end region of the respective drive shaft.
    Type: Application
    Filed: November 20, 2015
    Publication date: October 26, 2017
    Applicant: NETZSCH Pumpen & Systeme GmbH
    Inventors: Stefan Weigl, Franz Kneidl, Thomas Schmitt, Achim DEHNZ, Dominik HINDERA, Mathias OBERMAIER, Markus Rosam, Erwin Weber
  • Patent number: 9617992
    Abstract: A rotary piston pump for the delivery of liquids and for the delivery of liquids containing solids. The rotary piston pump includes a pump housing which is provided with an inlet and an outlet. The pump housing includes a lining. Disposed in the pump housing, or inside the lining, are at least two counter-rotating rotary pistons, which form pump spaces during their rotation. During the rotational movement, the rotary pistons are sealed against one another, against the pump housing and against the lining. Disposed in the pump housing and/or in the lining, in the spatial vicinity of the inlet and/or the outlet, are means with which the pulsation can be reduced or even completely prevented.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: April 11, 2017
    Assignee: NETZSCH Pumpen & Systeme GmbH
    Inventors: Stefan Weigl, Reinhard Denk, Hisham Kamal, Josef Strassl, Robert Kurz, Bernhard Murrenhoff, Thomas Boehme, Gunther Herr, Franz Kneidl, Mikael Tekneyan, Matthias Gradl, Erwin Weber, Roger Willis, Stefan Kern, Johann Kreidl, Marcel Verhoeven
  • Patent number: 9617995
    Abstract: A rotary piston pump with at least two double- or multi-lobe rotary pistons rotating in opposite directions, the drive shafts whereof include seals, wherein the seals are constituted as slip ring seals or lip seals or stuffing-box seals, which in each case are disposed on the shaft shoulder belonging to the respective rotary piston, and one slip ring per seal is provided with a locking device, which includes a large number of fixing positions. The seals are pushed onto a tubular shoulder of the rotary piston, the rotary piston is introduced into the pump housing, the securing element is connected to the slip ring seal in a form-fit manner by rotation of the rotary piston and the shaft shoulder is then rigidly connected to the drive shaft.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: April 11, 2017
    Assignee: NETZSCH Pumpen & Systeme GmbH
    Inventors: Stefan Weigl, Reinhard Denk, Hisham Kamal, Josef Strassl, Robert Kurz, Bernhard Murrenhoff, Thomas Boehme, Gunther Herr, Franz Kneidl, Mikael Tekneyan, Matthias Gradl, Erwin Weber, Roger Willis, Stefan Kern, Johann Kreidl, Marcel Verhoeven, Thomas Schmitt
  • Patent number: 9611850
    Abstract: A method and a device for fixing and synchronizing rotary pistons in a rotary piston pump involves introducing the rotary pistons into the pump space of the rotary piston pump. A shaft stub of each rotary piston is then pushed through a pump rear wall onto a driveshaft provided for the respective rotary piston. The rotary pistons are aligned and synchronized in the pump space via a template, the template being fixed detachably to a pump housing. The shaft stubs of the respective rotary piston are connected, after the synchronization, in each case via a clamping device in a friction-locked manner to the respective driveshaft, outside the pump space.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: April 4, 2017
    Assignee: NETZSCH Pumpen & Systeme GmbH
    Inventors: Stefan Weigl, Reinhard Denk, Hisham Kamal, Josef Strassl, Robert Kurz, Bernhard Murrenhoff, Thomas Boehme, Gunther Herr, Franz Kneidl, Mikael Tekneyan, Matthias Gradl, Erwin Weber, Roger Willis, Stefan Kern, Johann Kreidl, Marcel Verhoeven
  • Patent number: 9028233
    Abstract: A rotary piston pump equipped with a motor having two counter-rotating rotary pistons. The two rotary pistons are housed in an oval pump housing. The two rotary pistons are arranged on a first output shaft and a second output shaft. The first output shaft and the second output shaft are driven and synchronized via at least one elastic element.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: May 12, 2015
    Assignee: NETZSCH-Pumpen & Systeme GmbH
    Inventors: Hans Juergen Linde, Bernhard Murrenhoff, Robert Kurz, Reinhard Denk, Josef Strassl, Thomas Boehme, Hisham Kamal, Stefan Weigl, Roger Willis, Stefan Kern, Johann Kreidl, Gunter Herr, Franz Kneidl, Mikael Tekneyan, Erwin Weber, Marcel Verhoeven, Mathias Gradl, Udo Enderle
  • Publication number: 20150050174
    Abstract: A rotary piston pump for the delivery of liquids and for the delivery of liquids containing solids. The rotary piston pump includes a pump housing which is provided with an inlet and an outlet. The pump housing includes a lining. Disposed in the pump housing, or inside the lining, are at least two counter-rotating rotary pistons, which form pump spaces during their rotation. During the rotational movement, the rotary pistons are sealed against one another, against the pump housing and against the lining. Disposed in the pump housing and/or in the lining, in the spatial vicinity of the inlet and/or the outlet, are means with which the pulsation can be reduced or even completely prevented.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 19, 2015
    Inventors: Stefan Weigl, Reinhard Denk, Hisham Kamal, Josef Strassl, Robert Kurz, Bernhard Murrenhoff, Thomas Boehme, Gunther Herr, Franz Kneidl, Mikael Tekneyan, Matthias Gradl, Erwin Weber, Roger Willis, Stefan Kern, Johann Kreidl, Marcel Verhoeven
  • Publication number: 20140360359
    Abstract: A rotary piston for a rotary piston pump includes at least one supporting body, through which a rotational axis of the rotary piston extends, and at least one end cap section, which is disposed radially outwards from the at least one supporting body and is connected flexibly, preferably elastically, to the at least one supporting body.
    Type: Application
    Filed: August 20, 2014
    Publication date: December 11, 2014
    Inventors: Liessel Roland, Wolfgang Nindel, Bernhard Murrenhoff, Robert Kurz, Reinhard Denk, Josef Strassl, Thomas Boehme, Hisham Kamal, Stefan Weigl, Roger Willis, Stefan Kern, Johann Kreidl, Gunther Herr, Marcel Verhoeven, Franz Kneidl, Mikael Tekneyan, Matthias Gradl, Erwin Weber
  • Publication number: 20140345451
    Abstract: A method and a device for fixing and synchronising rotary pistons in a rotary piston pump are disclosed. The rotary pistons are introduced into the pump space of the rotary piston pump. A shaft stub of each rotary piston is then pushed through a pump rear wall onto a driveshaft provided for the respective rotary piston. The rotary pistons are aligned and synchronised in the pump space by means of a template, the template being fixed detachably to a pump housing. The shaft stubs of the respective rotary piston are connected, after the synchronisation, in each case by means of a clamping device in a friction-locked manner to the respective driveshaft, outside the pump space.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Inventors: Stefan Weigl, Reinhard Denk, Hisham Kamal, Josef Strassl, Robert Kurz, Bernhard Murrenhoff, Thomas Boehme, Gunther Herr, Franz Kneidl, Mikael Tekneyan, Matthias Gradl, Erwin Weber, Roger Willis, Stefan Kern, Johann Kreidl, Marcel Verhoeven
  • Publication number: 20140348687
    Abstract: A rotary piston pump with at least two double- or multi-lobe rotary pistons rotating in opposite directions, the drive shafts whereof include seals, wherein the seals are constituted as slip ring seals or lip seals or stuffing-box seals, which in each case are disposed on the shaft shoulder belonging to the respective rotary piston, and one slip ring per seal is provided with a locking device, which includes a large number of fixing positions. The seals are pushed onto a tubular shoulder of the rotary piston, the rotary piston is introduced into the pump housing, the securing element is connected to the slip ring seal in a form-fit manner by rotation of the rotary piston and the shaft shoulder is then rigidly connected to the drive shaft.
    Type: Application
    Filed: August 6, 2014
    Publication date: November 27, 2014
    Inventors: Stefan Weigl, Reinhard Denk, Hisham Kamal, Josef Strassl, Robert Kurz, Bernhard Murrenhoff, Thomas Boehme, Gunther Herr, Franz Kneidl, Mikael Tekneyan, Matthias Gradl, Erwin Weber, Roger Willis, Stefan Kern, Johann Kreidl, Marcel Verhoeven, Thomas Schmitt
  • Publication number: 20130129555
    Abstract: The rotary piston pump includes two counter-rotating rotary pistons and an oval pump housing. Every rotary piston has a rotary piston vane and is provided with a contact element. The contact points of the flanks of the two rotary pistons in which the two rotary pistons form a friction pairing are provided with a contact element each. The interior of the oval pump housing is likewise provided with an exchangeable contact element.
    Type: Application
    Filed: October 5, 2012
    Publication date: May 23, 2013
    Inventors: Hans Juergen Linde, Bernhard Murrenhoff, Robert Kurz, Reinhard Denk, Josef Strassl, Thomas Boehme, Hisham Kamal, Stefan Weigl, Roger Willis, Stefan Kern, Johann Kreidl, Gunter Herr, Franz Kneidl, Mikael Tekneyan, Erwin Weber, Marcel Verhoeven, Mathias Gradl
  • Publication number: 20130094985
    Abstract: A rotary piston pump equipped with a motor having two counter-rotating rotary pistons. The two rotary pistons are housed in an oval pump housing. The two rotary pistons are arranged on a first output shaft and a second output shaft. The first output shaft and the second output shaft are driven and synchronized via at least one elastic element.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 18, 2013
    Inventors: Hans Juergen Linde, Bernhard Murrenhoff, Robert Kurz, Reinhard Denk, Josef Strassl, Thomas Boehme, Hisham Kamal, Stefan Weigl, Roger Willis, Stefan Kern, Johann Kreidl, Gunter Herr, Franz Kneidl, Mikael Tekneyan, Erwin Weber, Marcel Verhoeven, Mathias Gradl, Udo Enderle