Patents by Inventor Stefan Schlichter

Stefan Schlichter 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: 20030146331
    Abstract: A device is provided on a spinning preparation machine for receiving a sliver from a discharge device of the spinning preparation machine and transporting the sliver to a downstream machine, the spinning preparation machine having a depositing region. The device has a support for receiving the sliver deposited from the discharge device in the depositing region, and a moving device for moving the deposited sliver relative to the discharge device in the depositing region for forming a free standing sliver bundle, and for moving the free standing sliver bundle out of the depositing region for transport to a downstream machine.
    Type: Application
    Filed: January 24, 2003
    Publication date: August 7, 2003
    Inventor: Stefan Schlichter
  • Patent number: 6087608
    Abstract: A fiber processing method includes the steps of removing fiber tufts from a series of fiber bales; pneumatically conveying the fiber tufts in a duct; forming images of the conveyed material as it passes through a first location of the duct; determining the degree of lightness or the color of the fiber tufts by an image processing device; determining the degree of lightness of foreign substances, conveyed with the fiber tufts, by the image processing device; comparing the measuring values obtained by the image processing device with a settable limit value; and initiating a switching operation when the limit value is exceeded for branching off to a waste receiver the fiber tufts from the duct at a second location thereof.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: July 11, 2000
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Stefan Schlichter, Thomas Kramer
  • Patent number: 5974629
    Abstract: A method of measuring fiber material while being processed by fiber processing components of a carding machine, includes the following steps: measuring fiber length and nep number at an outlet of the carding machine; applying measured values of the fiber length and nep number to a control and regulating device; forming, in the control and regulating device, optimized machine setting data for the fiber length and the nep number; and applying the optimized machine setting data to at least one of the fiber processing components affecting fiber length and nep number.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: November 2, 1999
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Ferdinand Leifeld, Stefan Schlichter
  • Patent number: 5930870
    Abstract: A method of measuring fiber while being processed by a fiber processing machine, includes the following steps: measuring the length of fiber at an inlet of the fiber processing machine; measuring the length of fiber at an outlet of the fiber processing machine; and forming a difference between the values measured at the inlet and the values measured at the outlet for determining an extent of shortening to which the fiber is subjected as the fiber passes through the fiber processing machine.
    Type: Grant
    Filed: December 10, 1997
    Date of Patent: August 3, 1999
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Ferdinand Leifeld, Stefan Schlichter
  • Patent number: 5917591
    Abstract: A method of processing fiber includes the following steps: removing fiber tufts from a series of fiber bales by a tuft removing device of a bale opener traveling along the bale series; pneumatically conveying the removed fiber tufts in a duct in a direction of conveyance; detecting foreign substances by forming images of the conveyed material by an optical sensor device as the material passes through a location of the duct downstream of the bale opener as viewed in the direction of conveyance; determining the location of each fiber bale in the bale series; determining the degree of lightness, the degree of contamination or the color of the fiber tufts by an image processing device analyzing the generated images; and associating the degree of lightness, the degree of contamination or the color of the fiber tufts with the fiber bale from which the material passing through the duct location originates.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: June 29, 1999
    Assignee: Trutzschler GmbH & Co. KG
    Inventor: Stefan Schlichter
  • Patent number: 5819373
    Abstract: An apparatus for detecting a foreign substance in a pneumatically advancing fiber tuft stream and for separating the foreign substance therefrom includes a conduit; an optical sensor arrangement situated at a first location of the conduit for detecting a foreign substance in flight and for emitting signals representing the foreign substance; a separating arrangement situated at a second location of the conduit downstream of the first location as viewed in the conveying direction; an evaluating device for processing the signals; and a control device connected to the optical sensor arrangement, the separating arrangement and the evaluating device for operating the separating arrangement.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: October 13, 1998
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Stefan Schlichter, Michael Cieslinski
  • Patent number: 5737806
    Abstract: An apparatus for treating fiber and producing a fiber lap therefrom, includes a fiber feeder; a carding machine including a multi-roll licker-in assembly receiving the fiber material from the feeder, a main carding cylinder receiving fiber material from the licker-in assembly, a plurality of carding flats supported about a circumferential portion of the main carding cylinder and cooperating therewith, and a doffer receiving fiber material from the main carding cylinder; and a fiber lap forming device including a pneumatic fiber stripping device which has a blower for directing an airstream generally tangentially to the doffer for removing and entraining fiber material from the doffer, a hood having an inner face defining a chamber situated above and downstream of said doffer for receiving fiber material carried from the doffer by the airstream, a continuously driven, air-pervious receiving member having an upper face and an underside, and a suction device facing the underside of the receiving member for gener
    Type: Grant
    Filed: October 23, 1996
    Date of Patent: April 14, 1998
    Assignee: Trutzschler GmbH & Co. Kg
    Inventors: Ferdinand Leifeld, Stefan Schlichter
  • Patent number: 5647098
    Abstract: A system for transporting sliver between a sliver-producing textile machine and a sliver-consuming textile machine includes a coiler can containing the sliver; a carriage for transporting the coiler can; and a can-handling arrangement for moving the coiler can onto and off the carriage. The can-handling arrangement has a can-pusher for tilting the coiler can standing externally of the carriage on an emplacement and a device for reaching underneath the can bottom.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: July 15, 1997
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Ferdinand Leifeld, Stefan Schlichter
  • Patent number: 5500986
    Abstract: A method of handling flat coiler cans charged and to be charged with sliver in a sliver charging station of a sliver producing fiber processing machine includes the following steps: advancing an empty can into a first standby station situated in a zone of the sliver charging station; advancing an empty can from the first standby station into the sliver charging station; charging a can with sliver in the sliver charging station; advancing a full can from the sliver charging station into a second standby station situated in a zone of the sliver charging station; and advancing a full can out of the second standby station.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: March 26, 1996
    Assignee: Tru/ tzscher GmbH & Co. KG
    Inventors: Ferdinand Leifeld, Stefan Schlichter, Bernhard Windges, Siegfried Gu/ nkinger
  • Patent number: 5398381
    Abstract: A fiber processing machine includes a fiber processing roll carrying a first clothing on the surface thereof; and a countermember carrying a second clothing thereon. The first and second clothings cooperate with one another during operation of the fiber processing machine. A sensor determines a clearance between facing points of the first and second clothings. The sensor is mounted on the countermember and faces the first clothing when effecting measurement of the clearance.
    Type: Grant
    Filed: October 22, 1993
    Date of Patent: March 21, 1995
    Assignee: Truzschler GmbH & Co. KG
    Inventors: Stefan Schlichter, Ferdinand Leifeld
  • Patent number: 5329668
    Abstract: An apparatus for mixing fiber tufts includes a first conveyor for accommodating thereon a row of fiber bales; a bale opener for travelling along the row of fiber bales and removing fiber tufts sequentially from the fiber bales; a storage system for storing a plurality of fiber bales each containing fiber of predetermined properties; a selecting device for selecting fiber bales of desired properties from the fiber bales accommodated in the storage system; and a second conveyor for sequentially advancing the selected fiber bales from the storage system to the first conveyor for complementing the row of fiber bales accommodated on the first conveyor for obtaining a series of fiber bales thereon having preselected, determined properties.
    Type: Grant
    Filed: June 11, 1992
    Date of Patent: July 19, 1994
    Assignee: Trutzschler GmbH & Co. KG
    Inventor: Stefan Schlichter
  • Patent number: 5297317
    Abstract: An apparatus for transporting a coiler can from a sliver-producing fiber processing machine to a sliver-using fiber processing machine includes a transport carriage provided with wheels; a motor for propelling the transport carriage along a path of travel; and ground-supported rails for positively guiding the transport carriage along its path of travel.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: March 29, 1994
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Ferdinand Leifeld, Stefan Schlichter, Paul G. Teichmann, Manfred Langen
  • Patent number: 5130559
    Abstract: A method of recognizing particle impurities in textile material includes the following steps: forming a thin fiber web; detecting each particle impurity by an electron-optical sensor; applying signals from the sensor to an image processing system; determining a specific characteristic for each particle impurity by an evaluating device forming part of the image processing system; classifying the particle impurities based on the specific characteristic by comparison with reference data; and counting the particle impurities.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: July 14, 1992
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Ferdinand Leifeld, Stefan Schlichter, Norbert Tietgen
  • Patent number: 5033165
    Abstract: An apparatus for opening and cleaning textile fiber material includes a fiber feeding device for advancing the fiber material; a first clothed roller situated downstream of the fiber feeding device and being arranged for entraining the fiber material advanced by the fiber feeding device; a second clothed roller situated downstream of the first clothed roller and being arranged for entraining fiber material after entrainment thereof by the first clothed roller; a mote knife cooperating with the first and second clothed roller; a waste removal clearance bounded by each respective mote knife; and a third clothed roller situated between the first and second clothed rollers. The first, third and second clothed rollers are arranged in series, whereby the fiber material passes from the first clothed roller to the third clothed roller and from the third clothed roller to the second clothed roller.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: July 23, 1991
    Assignee: Trutzschler GmbH & Co. KG
    Inventors: Konrad Temburg, Ferdinand Leifeld, Stefan Schlichter