Patents by Inventor Detlef Schelter
Detlef Schelter 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: 20220348435Abstract: A method for operating a textile machine producing cross-wound packages has a multiplicity of autonomous work stations that each have a spinning apparatus and a winding apparatus and are equipped with a suction nozzle, connected to the vacuum network of the textile machine, for receiving a thread from the surface of a cross-wound package, and also a storage nozzle, likewise connected to the vacuum network, for temporarily storing excess thread length, and which is operated at least by one service unit that exchanges full cross-wound packages for empty tubes as required. The invention provides for the actuation of a cross-wound package/empty tube exchange by one of the service units to be prevented during the operations of restarting of the work stations, thereby ensuring that, during the restarting of the autonomous work stations, the maximum number of work stations always starts up again at the same time.Type: ApplicationFiled: September 22, 2020Publication date: November 3, 2022Inventors: Detlef SCHELTER, Stephan KASPERS
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Patent number: 11180341Abstract: A textile machine for producing cross-wound packages, comprising a plurality of workstations, each of which has at least one pneumatic consumer, and comprising a suction system which has at least one vacuum source to which the pneumatic consumers of the workstations are connected via a machine-length vacuum duct arranged in the region of the central axis between two rows of workstations. In order to modify such a textile machine producing cross-wound packages in such a way that it is ensured that the required minimum spinning vacuum is always available at all workstations of the textile machine during spinning operation, according to the invention the textile machine producing cross-wound packages has, in addition to the vacuum duct, a machine-length bypass duct which is also installed in the region of the central axis and is arranged above chain ducts for service units.Type: GrantFiled: December 11, 2019Date of Patent: November 23, 2021Assignee: Saurer Spinning Solutions GmbH & Co. KGInventors: Dirk Brakensiek, Elisabeth Klaczynski, Tai Mac, Erwin Peters, Eduard Prediger, Philipp Schiffers, Michael Spitzer, Detlef Schelter, Heiko Toepke, Lothar Winzen, Lothar Uedinger, Harald Wilhelm Wassen
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Patent number: 11066271Abstract: A method for operating a textile machine with several identical workstations which each have a basic requirement for negative pressure for regular production operation and an additional requirement for negative pressure following an interruption to production at the workstation, and with a vacuum system with limited suction force to exert the negative pressure on the workstations. A minimum negative pressure (pmin) is set and the number workstations simultaneously supplied with additional negative pressure is limited so that the minimum negative pressure (pmin) is always met. In accordance with the invention, a sub-negative pressure (psub) is specified which is below the minimum negative pressure (pmin) and, if a specified event occurs, the number of workstations simultaneously supplied with additional negative pressure is temporarily limited so that the sub-negative pressure (psub) is always met.Type: GrantFiled: January 29, 2019Date of Patent: July 20, 2021Assignee: Saurer Spinning Solutions GmbH & Co. KGInventors: Bert Schloemer, Dirk Brakensiek, Detlef Schelter, Michael Spitzer
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Publication number: 20200180900Abstract: A textile machine for producing cross-wound packages, comprising a plurality of workstations, each of which has at least one pneumatic consumer, and comprising a suction system which has at least one vacuum source to which the pneumatic consumers of the workstations are connected via a machine-length vacuum duct arranged in the region of the central axis between two rows of workstations. In order to modify such a textile machine producing cross-wound packages in such a way that it is ensured that the required minimum spinning vacuum is always available at all workstations of the textile machine during spinning operation, according to the invention the textile machine producing cross-wound packages has, in addition to the vacuum duct, a machine-length bypass duct which is also installed in the region of the central axis and is arranged above chain ducts for service units.Type: ApplicationFiled: December 11, 2019Publication date: June 11, 2020Inventors: Dirk Brakensiek, Elisabeth Klaczynski, Tai Mac, Erwin Peters, Eduard Prediger, Philipp Schiffers, Michael Spitzer, Detlef Schelter, Heiko Toepke, Lothar Winzen, Lothar Uedinger, Harald Wilhelm Wassen
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Publication number: 20190233980Abstract: A method for operating a textile machine with several identical workstations which each have a basic requirement for negative pressure for regular production operation and an additional requirement for negative pressure following an interruption to production at the workstation, and with a vacuum system with limited suction force to exert the negative pressure on the workstations. A minimum negative pressure (pmin) is set and the number workstations simultaneously supplied with additional negative pressure is limited so that the minimum negative pressure (pmin) is always met. In accordance with the invention, a sub-negative pressure (psub) is specified which is below the minimum negative pressure (pmin) and, if a specified event occurs, the number of workstations simultaneously supplied with additional negative pressure is temporarily limited so that the sub-negative pressure (psub) is always met.Type: ApplicationFiled: January 29, 2019Publication date: August 1, 2019Inventors: Bert Schloemer, Dirk Brakensiek, Detlef Schelter, Michael Spitzer
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Patent number: 7681389Abstract: A suction air nozzle for a textile machine for storing a yarn length of a running yarn passing the nozzle opening. The nozzle has an elongate nozzle body, with a clear cross section having a narrower width in the region of its central longitudinal axis than in its tube-like edge regions. The nozzle further has an inlet opening, which has its largest width in the yarn running direction. The clear cross section of the nozzle body of the suction air nozzle increases from the inlet opening of the nozzle body in the axial direction to an end-side outlet opening.Type: GrantFiled: November 13, 2006Date of Patent: March 23, 2010Assignee: Oerlikon Textile GmbH & Co. KGInventors: Maximilian Preutenborbeck, Wilhelm Oehrl, Detlef Schelter
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Publication number: 20090120053Abstract: A suction air nozzle for a textile machine for storing a yarn length of a running yarn passing the nozzle opening. The nozzle has an elongate nozzle body, with a clear cross section having a narrower width in the region of its central longitudinal axis than in its tube-like edge regions. The nozzle further has an inlet opening, which has its largest width in the yarn running direction. The clear cross section of the nozzle body of the suction air nozzle increases from the inlet opening of the nozzle body in the axial direction to an end-side outlet opening.Type: ApplicationFiled: November 13, 2006Publication date: May 14, 2009Applicant: Oerlikon Textile GmbH & Co. KGInventors: Maximilian Preutenborbeck, Wilhelm Oehrl, Detlef Schelter
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Patent number: 6854256Abstract: A spinning device comprising a spinning box housing; a spinning rotor having a spinning cup on a rotor shaft; a cover element; a traveling belt acting tangentially on the rotor shaft; a rotor brake; a pivotable expander roller moveable within a maximum pivot angle via a pressure lever system connected to the brake gear of the rotor brake between an operative position when the spinning box is closed in an inoperative position wherein the expander roller is automatically lifted off the tangential belt and the rotor brake is applied to the rotor shaft when the spinning box is opened; a brake and locking lever having a locking recess in contact with an arresting roller arranged on the cover element; and an arrangement in the pressure lever system for absorbing shock-like forces acting on the expander roller and for preventing the forces from being transmitted to the brake and locking lever.Type: GrantFiled: March 14, 2003Date of Patent: February 15, 2005Assignee: W. Schlafhorst AG & Co.Inventors: Heinz-Georg Wassenhoven, Michael Spitzer, Dieter Haaken, Harry Gatzke, Detlef Schelter, Elisabeth Klaczynski, Hans-Josef Schröder
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Publication number: 20040016224Abstract: A sliver delivery and opening device having a pivotably seated sliver intake cylinder driven by a worm gear arrangement comprising a worm wheel connected to the sliver intake cylinder that meshes with a worm affixed to a drive shaft. The worm includes thread windings conforming to a superimposed profile that axially offsets the worm relative to the worm wheel, thus preventing placement of a tooth of the worm wheel on a thread head of the worm when the worm wheel pivotally engages the worm. The amount of offset is measured between a plane of symmetry intersecting the superimposed profile of the worm thread windings and a pivot plane intersecting a center axis of the worm wheel. A positioning device, comprising at least one magnet and a ferromagnetic positioning element, prepositions the worm wheel relative to the pivot plane for pivotal engagement of the worm wheel and the worm.Type: ApplicationFiled: May 16, 2003Publication date: January 29, 2004Applicant: W. Schlafhorst AG & Co.Inventors: Dieter Haaken, Michael Spitzer, Detlef Schelter, Wolfgang Rademacher, Norbert Welters, Jochen Dressen
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Publication number: 20040000133Abstract: A spinning device comprising a spinning box housing; a spinning rotor having a spinning cup on a rotor shaft; a cover element; a traveling belt acting tangentially on the rotor shaft; a rotor brake; a pivotable expander roller moveable within a maximum pivot angle via a pressure lever system connected to the brake gear of the rotor brake between an operative position when the spinning box is closed in an inoperative position wherein the expander roller is automatically lifted off the tangential belt and the rotor brake is applied to the rotor shaft when the spinning box is opened; a brake and locking lever having a locking recess in contact with an arresting roller arranged on the cover element; and an arrangement in the pressure lever system for absorbing shock-like forces acting on the expander roller and for preventing the forces from being transmitted to the brake and locking lever.Type: ApplicationFiled: March 14, 2003Publication date: January 1, 2004Applicant: W. Schlafhorst AG & Co.Inventors: Heinz-Georg Wassenhoven, Michael Spitzer, Dieter Haaken, Harry Gatzke, Detlef Schelter, Elisabeth Klaczynski, Hans-Josef Schroder
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Patent number: 6221121Abstract: A filter chamber (8) for the vacuum system of a textile machine (1) comprises connection conduits (14, 15) between a vacuum source (7) and a suction conduit (9) running the length of the machine. A filter 10 is arranged inside the filter chamber (8) at an interval from the wall (13) of the filter chamber to divide the filter chamber (8) into a dirty-air area (18) and a clean-air area (17). The filter element (10) comprises at least two filter elements, a relief element (11) and a collector element (12). The relief element (11) is disposed in the filter chamber (8) at a spacing from the wall (13) of the filter chamber such that a primary component of the flow (16) of suction air from the conduit (14) to the conduit (15) for the vacuum source (7) moves parallel to or at an acute angle (I) to the relief element (11).Type: GrantFiled: August 9, 1999Date of Patent: April 24, 2001Assignee: W. Schlafhorst AG & Co.Inventors: Detlef Schelter, Michael Spitzer