Patents by Inventor Josef Ludvícek

Josef Ludvícek 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).

  • Patent number: 8931249
    Abstract: A method interrupts yarn production on a spinning machine having at least one spinning point having an inlet for a fiber material and an outlet for the yarn made from the fiber material, and wherein the spinning machine comprises a delivery device for feeding the fiber material into the spinning point, a take-off device for drawing off the yarn out of the spinning point, a winding device for winding up the produced yarn, and a yarn monitoring unit for monitoring at least one yarn parameter. Yarn production is interrupted upon detecting a defined deviation of the monitored yarn parameter from a target value, upon changing bobbins at the winding device, and/or prior to switching off the spinning machine.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 13, 2015
    Assignee: Rieter Ingolstadt GmbH
    Inventors: Adalbert Stephan, Gernot Schäffler, Evzen Pilar, Martin Novak, Vítezslav Kubes, Josef Ludvícek, Vladimir Krycner
  • Patent number: 8919091
    Abstract: A method is provided for interrupting yarn production on a spinning machine upon detecting a defined deviation of a monitored yarn parameter from a target value, upon changing bobbins at a winding device, and/or prior to switching off the spinning machine. The feed speeds of the delivery device, the take-off device, and the winding device are gradually reduced to a stop in order to interrupt the yarn production, wherein the reducing takes place such that an end of the produced yarn is located within the spinning point after the reducing is completed.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 30, 2014
    Assignee: Rieter Ingolstadt GmbH
    Inventors: Adalbert Stephan, Gernot Schäffler, Evzen Pilar, Martin Novak, Vítezslav Kubes, Josef Ludvícek, Vladimir Krycner
  • Patent number: 8915055
    Abstract: The spinning station of a spinning machine includes a yarn end disposal means, arranged between the outlet of the spinning device and the winding device, and with the aid of which an end section of the produced yarn is separated from the rest of the yarn and eliminated. Furthermore, a process for removing an end section of a yarn at a spinning station of a spinning machine prior to the subsequent piecing process is proposed, wherein the end section is gripped, cut off, and subsequently eliminated from the area of the spinning station with the aid of a yarn end disposal means arranged between the outlet of the spinning device and the winding device.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 23, 2014
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Adalbert Stephan, Josef Ludvícek, Gernot Schäffler
  • Publication number: 20130067879
    Abstract: A spinning machine has a spinning point, that includes a spinning device with an entry for a fibre material and an outlet for a produced yarn, as well as a feeding device for feeding the fibre material to the spinning device and a winding device for winding on the produced yarn. The spinning point includes a yarn end disposal means partly arranged between the outlet of the spinning device and the winding device, and with the aid of which an end section of the produced yarn is able to be separated from the rest of the yarn and eliminated. Furthermore, a process for removing an end section of a yarn at a spinning point of a spinning machine prior to the subsequent piecing process is proposed.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: Maschinenfabrik Rieter AG
    Inventors: Adalbert Stephan, Josef Ludvicek, Gernot Schäffler
  • Publication number: 20130067880
    Abstract: A method for interrupting yarn production on a spinning machine is provided. The spinning machine has a spinning point having an inlet for a fiber material and an outlet for the yarn made from the fiber material, as well as a delivery device for feeding the fiber material into the spinning point, a take-off device for drawing off the yarn out of the spinning point, a winding device for winding up the produced yarn, and a yarn monitoring unit for monitoring at least one yarn parameter. The yarn production is interrupted upon detecting a defined deviation of the monitored yarn parameter from a target value, upon changing bobbins at the winding device, and/or prior to switching off the spinning machine. The feed speeds of the delivery device, the take-off device, and the winding device are gradually reduced to a stop in order to interrupt the yarn production.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: Rieter Ingolstadt GmbH
    Inventors: Adalbert Stephan, Gernot Schäffler, Evzen Pilar, Martin Novak, Vitezslav Kubes, Josef Ludvicek, Vladimir Krycner
  • Publication number: 20130067878
    Abstract: A method for interrupting yarn production on a spinning machine interrupts yarn production upon detecting a defined deviation of a monitored yarn parameter from a target value, upon changing bobbins at the winding device, and/or prior to switching off the spinning machine. Feed speeds of the delivery device, the take-off device, and the winding device are gradually reduced to a stop in order to interrupt the yarn production, wherein the reducing takes place such that the end of the produced yarn is located between the outlet of the spinning point and the winding device after the reducing is completed. The invention further relates to a spinning machine having a control and/or regulation device designed for operating the spinning machine according to the disclosed method.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: RIETER INGOLSTADT GMBH
    Inventors: Adalbert Stephan, Gernot Schäffler, Evzen Pilar, Martin Novak, Vítezslav Kubes, Josef Ludvícek, Vladimir Krycner
  • Patent number: 6573628
    Abstract: A spinning device of a rotor spinning machine has a spinning rotor made of magnetically hard material, seated for rotation in an air chamber connected with an underpressure source. A stator includes at least two electromagnetic coils is arranged around the outer circumferential surface of the spinning rotor. The spinning rotor is made as a ring consisting of magnetically hard material and magnetized normal to the plane passing through the axis of the spinning rotor.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 3, 2003
    Assignee: Rieter Elitex A.S.
    Inventors: Ji{haeck over (r)}í Sloupenský, Josef Ludvícek, Milo{haeck over (s)} Mládek
  • Publication number: 20020073686
    Abstract: The invention relates to a rotor spinning machine comprising a plurality of operating units situated next to each other, each of which contains a spinning unit (1) with a singling-out device (5) having in its body a rotatably mounted combing roller (52) equipped on its circumferential surface with an operative coating (521) around which there is provided in the body (51) of the singling-out device a circumferential fibre channel (511) whose operative section extends in the sense of rotation of the combing roller (52) from the mouth of the sliver feeding device (4) to the supply channel (6) bringing the singled-out fibres into the rotor, said circumferential fibre channel (511) having provided therein the mouth of a closable auxiliary supply channel (514) for pressure air.
    Type: Application
    Filed: July 24, 2001
    Publication date: June 20, 2002
    Applicant: Rieter CZ a.s.
    Inventors: Josef Ludvicek, Pavel Kousalik, Jaroslav Markl, Tomas Tesar
  • Publication number: 20020046557
    Abstract: A method of spinning-in yarn on an operating unit of a rotor spinning machine which comprises steps of yarn preparation for spinning-in, steps of spinning rotor preparation for spinning-in, and final spinning-in steps, the steps of yarn preparation for spinning in comprising at least the detection of the yarn end on the bobbin or the preparation of auxiliary yarn when spinning-in on an empty tube, unwinding and metering a yarn length required for spinning-in, setting the yarn into its spinning-in path on the operating unit of the rotor spinning machine in which the yarn is outside the reach of the yarn distributor and not clamped between the rollers of the draw-off mechanism, creating a spinning-in yarn end and introducing it into the yarn delivery tube from the spinning rotor, the steps of the spinning rotor preparation for the spinning-in comprising at least the opening of the spinning unit to its cleaning position, cleaning of the stopped spinning rotor, closing of the spinning unit, and the final spinning
    Type: Application
    Filed: July 23, 2001
    Publication date: April 25, 2002
    Applicant: Rieter CZ a.s.
    Inventors: Josef Ludvicek, Pavel Kousalik, Jaroslav Markl, Tomas Tesar