Patents by Inventor Fritz Stahlecker

Fritz Stahlecker 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: 6948303
    Abstract: A process is disclosed for a spinning arrangement for dealing with the correction of an end break. During operation, sliver-like fiber material fed to the spinning arrangement is opened to single fibers by means of an opening roller. The single fibers are then transferred in the form of a fiber veil to a suctioned collecting surface, which is driven in the direction of motion of the single fibers. During the transport of the fibers by means of the collecting surface, the fiber veil is condensed to a narrow fiber strand and the condensed fiber strand is spun to a yarn downstream of a nipping line by means of a twisting nozzle. When an end-break occurs, the material feed is interrupted and the fiber strand is suctioned in the area of the nipping line until the collecting surface is free from single fibers. A piecing operation subsequently takes place.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: September 27, 2005
    Assignee: Maschinenfabrik Rieter AG
    Inventor: Fritz Stahlecker
  • Publication number: 20040221567
    Abstract: A process is disclosed for a spinning arrangement for dealing with the correction of an end break. During operation, sliver-like fiber material fed to the spinning arrangement is opened to single fibers by means of an opening roller. The single fibers are then transferred in the form of a fiber veil to a suctioned collecting surface, which is driven in the direction of motion of the single fibers. During the transport of the fibers by means of the collecting surface, the fiber veil is condensed to a narrow fiber strand and the condensed fiber strand is spun to a yarn downstream of a nipping line by means of a twisting nozzle. When an end-break occurs, the material feed is interrupted and the fiber strand is suctioned in the area of the nipping line until the collecting surface is free from single fibers. A piecing operation subsequently takes place.
    Type: Application
    Filed: February 23, 2004
    Publication date: November 11, 2004
    Inventor: Fritz Stahlecker
  • Patent number: 6502291
    Abstract: Traversing yarn guiding rods in textile machines producing X-packages are often made of carbon fibers for the purpose of reducing the inertia force. These kinds of traversing yarn guiding rods are prone to wear at their bearing points. For this reason, the bearings, having a distance to one another which corresponds to at least twice, preferably three times the traversing stroke, are collectively replaced from time to time, in such a way that the yarn guide rod is supported at different places than before. The replacement bearings are applied staggered to the old bearing points in such a way that the new bearing points now have a distance to the exposed previous bearing points, which distance corresponds to at least one traverse stroke. This results in the replacement bearings acting with a non-worn part of the fiber guiding rod. The life of the yarn guiding rod is thus significantly increased.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: January 7, 2003
    Inventor: Fritz Stahlecker
  • Publication number: 20020100269
    Abstract: A spinning device is provided in which at least one sliver is opened to single fiber and the single fiber are deposited on a moveable collecting surface in the form of an air-permeable sieve belt. During transport on the collecting surface, the fiber veil is condensed transversely to its direction of movement to a fiber strand. The now roving-like fiber strand is transported through a nipping line and twisted to a thread by a twisting nozzle.
    Type: Application
    Filed: January 10, 2002
    Publication date: August 1, 2002
    Applicant: Maschinenfabrik Rieter AG
    Inventor: Fritz Stahlecker
  • Patent number: 6425164
    Abstract: An air-permeable transport belt, drivable by a drive roller, is provided for transporting a fiber strand to be condensed over a sliding surface of a spinning machine condensing zone which includes a suction slit. The transport belt has at least one area arranged to contact the drive roller, which area differs in relation to its surface structure from an area arranged to contact the sliding surface and from an area arranged to contact the fiber strand.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: July 30, 2002
    Inventor: Fritz Stahlecker
  • Publication number: 20020083697
    Abstract: A spinning device is provided in which at least one sliver is opened to single fibers and the single fibers are deposited on a moveable collecting surface in the form of a spread out fiber veil. During transport on the collecting surface, the fiber veil is condensed transversely to its direction of movement to a fiber strand. The now roving-like fiber strand is transported through a nipping line and twisted to a thread by a twisting nozzle. On the side facing away from the fiber veil, a suction opening is arranged at the perforated collecting surface, one side edge of said suction opening extending in the direction of movement of the collecting surface while the other side edge is arranged hereto at an acute angle.
    Type: Application
    Filed: December 12, 2001
    Publication date: July 4, 2002
    Inventor: Fritz Stahlecker
  • Patent number: 6360416
    Abstract: Traversing yarn guiding rods in textile machines producing X-packages are often made of carbon fibers for the purpose of reducing the inertia force. These kinds of traversing yarn guiding rods are prone to wear at their bearing points. For this reason, the bearings, having a distance to one another which corresponds to at least twice, preferably three times the traversing stroke, are collectively replaced from time to time, in such a way that the yarn guide rod is supported at different places than before. The replacement bearings are applied staggered to the old bearing points in such a way that the new bearing points now have a distance to the exposed previous bearing points, which distance corresponds to at least one traverse stroke. This results in the replacement bearings acting with a non-worn part of the fiber guiding rod. The life of the yarn guiding rod is thus significantly increased.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: March 26, 2002
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 6349530
    Abstract: In the case of ring spinning with condensing devices there is a risk that the yarns of the individual cops have a varying degree of hairiness. This can result in faults in the end product, for example a woven fabric. In order to avoid such faults, the ring spinning machine is connected to a monitoring station, in which the yarns are automatically monitored for hairiness; the cops, based on the monitoring results, are then automatically sorted.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: February 26, 2002
    Assignees: Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 6299096
    Abstract: Traversing rods in textile machines producing crosswound bobbins are often made of carbon fibers for the purpose of reducing the inertia force. These kinds of traversing rods are prone to wear at their bearing points. For this reason, the traversing rod whose bearings have a distance between them which corresponds to at least twice, preferably three times the traversing stroke, is so far displaced in its longitudinal direction in order to re-new the bearing points that other areas of the traversing rod than before now act together with the bearings.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: October 9, 2001
    Inventor: Fritz Stahlecker
  • Patent number: 6298523
    Abstract: An apparatus for condensing a fiber strand, which travels through a condensing zone in an untwisted state after leaving a drafting unit, comprises an air-permeable transport belt, which transports the fiber strand over a sliding surface comprising a suction slit. The sliding surface is formed by means of the outer contour of a hollow body connected to a vacuum. The hollow body comprises in addition a pressurized chamber, which has in one area facing away from the suction slit at least one air outlet opening directed against the inner side of the rotating transport belt.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: October 9, 2001
    Inventor: Fritz Stahlecker
  • Patent number: 6295800
    Abstract: In the case of an apparatus for open-end spinning, a fiber feed channel is arranged between an opening roller and a spinning rotor, which fiber feed channel tapers in a transport direction and which comprises a deflecting zone on its transport path. Immediately after the beginning of the deflecting zone, a bypass opening is provided, through which opening a part of the suction airflow transporting the fibers to the spinning rotor is drawn off. In the area of the opening roller, a bypass air inlet opening is provided additionally to support the suction airflow.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: October 2, 2001
    Inventor: Fritz Stahlecker
  • Patent number: 6293082
    Abstract: The spinning aggregates, arranged in a row, of an open-end spinning machine are each provided with an opening device, which comprises a removal opening for trash particles. A channel extending in a longitudinal machine direction takes up the expelled trash particles. A sliding carriage traverses to and from in the channel and pushes the trash particles collected in the channel to a suction point. The sliding carriage comprises a cleaning element, which can be pressed to the side wall of the channel under the action of a transverse force.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: September 25, 2001
    Inventor: Fritz Stahlecker
  • Publication number: 20010009052
    Abstract: An air-permeable transport belt, drivable by a drive roller, is provided for transporting a fiber strand to be condensed over a sliding surface of a spinning machine condensing zone which includes a suction slit. The transport belt has at least one area arranged to contact the drive roller, which area differs in relation to its surface structure from an area arranged to contact the sliding surface and from an area arranged to contact the fiber strand.
    Type: Application
    Filed: January 17, 2001
    Publication date: July 26, 2001
    Applicant: Fritz Stahlecker and Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Publication number: 20010004806
    Abstract: Traversing yarn guiding rods in textile machines producing X-packages are often made of carbon fibers for the purpose of reducing the inertia force. These kinds of traversing yarn guiding rods are prone to wear at their bearing points. For this reason, the bearings, having a distance to one another which corresponds to at least twice, preferably three times the traversing stroke, are collectively replaced from time to time, in such a way that the yarn guide rod is supported at different places than before. The replacement bearings are applied staggered to the old bearing points in such a way that the new bearing points now have a distance to the exposed previous bearing points, which distance corresponds to at least one traverse stroke. This results in the replacement bearings acting with a non-worn part of the fiber guiding rod. The life of the yarn guiding rod is thus significantly increased.
    Type: Application
    Filed: February 1, 2001
    Publication date: June 28, 2001
    Inventor: Fritz Stahlecker
  • Patent number: 6092356
    Abstract: A process for open-end spinning provides for at least one sliver being opened into single fibers. A wide fiber veil is formed from parallel single fibers extending in the direction of motion, which fiber veil is fed to a transporting surface by means of a moving collecting surface. The single fibers are transferred from the collecting surface to the transporting surface at a transfer point, whereby the direction of motion of the fiber veil is abruptly changed, however the current relative position of the single fibers remaining essentially constant. This motion direction change occurs at the transfer point, with the respective front part of the fiber veil being transferred to the transporting surface as a fiber group in a predetermined sequence, and the transporting surface moves transversely to the direction of motion of the collecting surface.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: July 25, 2000
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 6058693
    Abstract: A spinning process provides for opening at least one sliver to single fibers and for depositing the single fibers on a moving collecting surface in the form of an expanded fiber veil. During transport on the collecting surface and, if required on a moving drafting surface downstream thereof, the fiber veil is condensed, transversely to its direction of motion, to a strand. The roving-like strand is transported through a nipping line and twisted to a yarn under the action of a rotating air stream. Fiber ends are hereby spread out from the strand, which are helically wrapped around the yarn.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: May 9, 2000
    Inventors: Fritz Stahlecker, Hans Stahlecker
  • Patent number: 6055801
    Abstract: An open-end spinning machine comprises a plurality of adjacently arranged spinning aggregates. Each spinning aggregate consists essentially of a rotor unit comprising a spinning rotor, and an opening unit for opening a fed sliver into single fibers. The opening unit and the rotor unit each comprise a plurality of components. In order to modernize the open-end spinning machine, at least one of the above mentioned components is replaced by at least one modernized component in such a way that the efficiency of the spinning aggregate is improved.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: May 2, 2000
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 6052872
    Abstract: A draft free condensing zone for condensing a drafted fiber strand is provided between a front roller pair of a drafting unit of a ring spinning machine and a delivery roller pair arranged downstream thereof. The apparatus for condensing comprises an air-permeable und suctioned sliding surface which is in contact with the fiber strand, under which sliding surface is located a suction slit which is stationarily arranged and extends essentially in transport direction of the fiber strand. The sliding surface is the front surface of a rotating disc, whose rotational axle extends essentially perpendicular to the transport direction of the fiber strand.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: April 25, 2000
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventors: Kurt Lang, Fritz Stahlecker
  • Patent number: 6032453
    Abstract: The fiber sliding surface and the fiber collecting groove of an open-end spinning rotor are provided with hard particles embedded therein. After a certain length of operation time of the spinning rotor, the particles in the fiber collecting groove have a larger particle size than the particles in the fiber sliding surface. Thus it is ensured that the fiber collecting groove has a better "grip effect" relative to the fibers to be spun than the smoother fiber sliding surface.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: March 7, 2000
    Assignees: Fritz Stahlecker, Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 5974778
    Abstract: In the case of an arrangement for open-end spinning, a driven suction roller is provided which in a take-up zone takes up fiber material opened to single fibers and transports it to a suctioned yarn formation line. The yarn formation line is defined by a suction insert arranged in the inside of the suction roller, and extends transversely to the transport direction of the suction roller on the surface thereof. In extension of the yarn formation line a twist device is provided. On the side facing away from the twist device, the suction roller is supported on the suction insert while freely overhanging same, so that the twist device reaches directly up to the suctioned yarn formation line. The yarn formation line is preferably inclined at an angle towards the take-up zone on the side facing away from the twist device.
    Type: Grant
    Filed: September 13, 1997
    Date of Patent: November 2, 1999
    Assignees: Hans Stahlecker, Fritz Stahlecker
    Inventor: Fritz Stahlecker