Patents by Inventor Reinhard Denk
Reinhard Denk 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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Patent number: 11236747Abstract: An eccentric screw pump for pumping fluids or flowing conveying media from a suction side to a pressure side, which includes a rotor and a stator, the stator being flexible and is connected to the pump housing on one side, in particular on the suction side. The rotor is connected to the drive shaft by means of an articulation. When the eccentric screw pump is in the idle state, there is no sealing contact at least in areas between the rotor and the stator in the sealing areas. When the eccentric screw pump is in the operating state, the stator is surrounded, at least in sections and/or, essentially, on the periphery by the conveying medium. The rotor and the stator are brought into contact with each other in the operating state along the sealing area.Type: GrantFiled: April 10, 2018Date of Patent: February 1, 2022Assignee: NETZSCH Pumpen & Systeme GmbHInventors: Josef Hauck, Hisham Kamal, Reinhard Denk
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Publication number: 20200056609Abstract: An eccentric screw pump for pumping fluids or flowing conveying media from a suction side to a pressure side, which includes a rotor and a stator, the stator being flexible and is connected to the pump housing on one side, in particular on the suction side. The rotor is connected to the drive shaft by means of an articulation. When the eccentric screw pump is in the idle state, there is no sealing contact at least in areas between the rotor and the stator in the sealing areas. When the eccentric screw pump is in the operating state, the stator is surrounded, at least in sections and/or, essentially, on the periphery by the conveying medium. The rotor and the stator are brought into contact with each other in the operating state along the sealing area.Type: ApplicationFiled: April 10, 2018Publication date: February 20, 2020Inventors: Josef Hauck, Hisham Kamal, Reinhard Denk
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Patent number: 9617995Abstract: 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: GrantFiled: August 6, 2014Date of Patent: April 11, 2017Assignee: NETZSCH Pumpen & Systeme GmbHInventors: 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
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Patent number: 9617992Abstract: 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: GrantFiled: November 3, 2014Date of Patent: April 11, 2017Assignee: NETZSCH Pumpen & Systeme GmbHInventors: 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
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Patent number: 9611850Abstract: 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: GrantFiled: August 6, 2014Date of Patent: April 4, 2017Assignee: NETZSCH Pumpen & Systeme GmbHInventors: 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
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Patent number: 9028233Abstract: 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: GrantFiled: October 5, 2012Date of Patent: May 12, 2015Assignee: NETZSCH-Pumpen & Systeme GmbHInventors: 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
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Publication number: 20150050174Abstract: 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: ApplicationFiled: November 3, 2014Publication date: February 19, 2015Inventors: 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
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Publication number: 20150010342Abstract: A pin joint for eccentric screw pumps. The special design of the inner joint head of the pin joint, with its bores for the flushing liquid and the length of the joint pin, makes it possible also to carry out cleaning using the CIP method.Type: ApplicationFiled: September 26, 2014Publication date: January 8, 2015Inventors: Michael Groth, Reinhard Denk
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Publication number: 20140360359Abstract: 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: ApplicationFiled: August 20, 2014Publication date: December 11, 2014Inventors: 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
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Publication number: 20140345451Abstract: 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: ApplicationFiled: August 6, 2014Publication date: November 27, 2014Inventors: 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
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Publication number: 20140348687Abstract: 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: ApplicationFiled: August 6, 2014Publication date: November 27, 2014Inventors: 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
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Publication number: 20130129555Abstract: 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: ApplicationFiled: October 5, 2012Publication date: May 23, 2013Inventors: 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
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Publication number: 20130094985Abstract: 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: ApplicationFiled: October 5, 2012Publication date: April 18, 2013Inventors: 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
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Patent number: 7871253Abstract: The invention relates to a clamping device which clamps the pump stator with the pump housing and an additional pump end part. The width of the clamping bars is at least 20% of the cross section of the pump stator in order to stabilise the clamping device and the simplify handling. All parts which are required to clamp the pump end part remain on the clamping bars.Type: GrantFiled: September 19, 2007Date of Patent: January 18, 2011Assignee: Netzsch-Mohnopumpen GmbHInventors: Johann Kreidl, Guenter Fischbach, Hisham Kamal, Franz Kneidl, Helmuth Weber, Markus Rosam, Tanja Donislreiter, Reinhard Denk
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Publication number: 20080008611Abstract: The invention relates to a clamping device which clamps the pump stator with the pump housing and an additional pump end part. The width of the clamping bars is at least 20% of the cross section of the pump stator in order to stabilise the clamping device and the simplify handling. All parts which are required to clamp the pump end part remain on the clamping bars.Type: ApplicationFiled: September 19, 2007Publication date: January 10, 2008Inventors: Johann Kreidl, Guenter Fischbach, Hisham Kamal, Franz Kneidl, Helmuth Weber, Markus Rosam, Tanja Donislreiter, Reinhard Denk
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Patent number: 7104770Abstract: The present invention relates to the arrangement of a stator and a spare stator. In order to avoid a permanent correction in the length of the driving shaft, the spare stator is connected to the instantaneously operated stator or is configured in a single piece. Upon occurrence of a defined amount of wear, this stator combination is merely reversed through 180° relative to the longitudinal axis or an intermediate tube is inserted so that the spare stator arrives in the rotor region.Type: GrantFiled: September 22, 2003Date of Patent: September 12, 2006Assignee: NETZSCH-Mohnopumpen GmbHInventors: Helmut Bauer, Christoph Boehnisch, Reinhard Denk, Matthias Gradl, Michael Groth, Guido Gutmann, Guenther Hantschk, Siegfried Jarzina, Franz Kneidl, Johann Kreidl, Robert Kurz, Franz Lachenwitzer, Uwe Neumann, Hansjuergen Linde, Thomas Ribbe, Michael Robby, Karl-Heinz Rosner, Matthias Schaefer, Thomas Streubel, Alfred Thumser
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Patent number: 7040878Abstract: An eccentric screw-type pump has a pump section with a tubular pump casing, a stator cladding and a pump cavity (30) configured in correspondence with a double-thread or multi-thread screw. A screw-type rotor is connected to a driving shaft via a flexible shaft. The flexible shaft is connected at its two ends via rigid coupler elements to the rotor and the driving shaft, and is surrounded by a preloaded coaxially disposed screw.Type: GrantFiled: February 24, 2003Date of Patent: May 9, 2006Assignee: NETZSCH-Mohnopumpen GmbHInventors: Reinhard Denk, Bernhard Murrenhoff, Christopher Martin Gwalchmai, Johann Kreidl
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Publication number: 20050100468Abstract: The present invention relates to the arrangement of a stator and a spare stator. In order to avoid a permanent correction in the length of the driving shaft, the spare stator is connected to the instantaneously operated stator or is configured in a single piece. Upon occurrence of a defined amount of wear, this stator combination is merely reversed through 180° relative to the longitudinal axis or an intermediate tube is inserted so that the spare stator arrives in the rotor region.Type: ApplicationFiled: September 22, 2003Publication date: May 12, 2005Inventors: Helmut Bauer, Christoph Boehnisch, Reinhard Denk, Matthias Gradl, Michael Groth, Guido Gutmann, Guenther Hantschk, Siegfried Jarzina, Franz Kneidl, Johann Kreidl, Robert Kurz, Franz Lachenwitzer, Uwe Neumann, Hansjuergen Linde, Thomas Ribbe, Michael Robby, Karl-Heinz Rosner, Matthias Schaefer, Thomas Streubel, Alfred Thumser
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Publication number: 20040057846Abstract: The present invention relates to an eccentric screw-type pump. Due to their contact with the product to be pumped, the rotor and the stator of an eccentric screw-type are subject to a permanent wearing process. As the exchange of corresponding components subject to wear involves down times or requires special tools, the inventive eccentric screw-type pump is provided with a spare unit including, in particular, the stator, the rotor, the shaft, the driving shaft and the seal.Type: ApplicationFiled: September 19, 2003Publication date: March 25, 2004Inventors: Reinhard Denk, Christoph Boehnisch, Michael Groth, Franz Kneldl, Johann Kreidl, Thomas Ribbe, Michael Robby, Robert Kurz
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Publication number: 20040028546Abstract: An eccentric screw-type pump has a pump section with a tubular pump casing, a stator cladding and a pump cavity (30) configured in correspondence with a double-thread or multi-thread screw. A screw-type rotor is connected to a driving shaft via a flexible shaft. The flexible shaft is connected at its two ends via rigid coupler elements to the rotor and the driving shaft, and is surrounded by a preloaded coaxially disposed screw.Type: ApplicationFiled: February 24, 2003Publication date: February 12, 2004Inventors: Reinhard Denk, Bernhard Murrenhoff, Christopher Martin Qwalchmai, Johann Kreidl