Patents Assigned to Rieter Ingolstadt
  • Paraffin coating device for textile machines
    Patent number: 5624494
    Abstract: A paraffin coating device of a textile machine which has a fixed paraffin body to coat a yarn running with paraffin is provided with a compact unit supporting the essential parts of the paraffin treatment apparatus and which can be easily removed from the paraffin treatment apparatus for maintenance purposes in order to facilitate handling and to improve even application of paraffin on the yarn.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: April 29, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Werner Schmolke, Romeo Pohn
  • Process and device to store and seperate textile tubes
    Patent number: 5620299
    Abstract: The invention relates to a process and apparatus for the random storage of tubes stacked on top of each other in a tube magazine, and for the transfer of the tubes at a transfer position to a conveyor. The tubes are stored randomly in the magazine with their longitudinal axes essentially parallel to each other. Tubes are separated between the transfer position and the magazine and are conveyed out of the magazine in the axial direction.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: April 15, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Gerhard Grabovsky, Bernhard Stang
  • Draw frame
    Patent number: 5619773
    Abstract: The instant invention relates to a process for the adjustment of a drafting unit of a draw frame. The drafting unit is equipped with drafting rollers (5, 5') supported in a pillow block (4, 4'). The pillow block (4, 4') is installed on a table (10). The height of the table (10) is adjusted by a first set of adjusting devices and the pitch of the table (10) is adjusted by a second set of adjusting device in relation to the frame (2). The table (10) is installed between the pillow block (4, 4') and the frame (2) for the positional adjustment of the pillow block (4, 4').
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: April 15, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Wolfgang Gohler, Rudolf Becker, Michael Strobel
  • Device and process for maintenance of spinning devices
    Patent number: 5611195
    Abstract: A method and system for maintaining spinning machines having a plurality of spinning stations include automatically positioning a maintenance unit proximate to the spinning stations for removing spinning components from the spinning stations and replacing the removed spinning components with replacement spinning components. The maintenance unit is configured to remove the spinning component from the spinning station for servicing, to immediately replace the removed spinning component with a replacement spinning component which is carried by the maintenance unit, and to transfer the removed spinning component to a remote service station. The removed spinning component is serviced at the service station and is subsequently picked up by the maintenance unit for subsequent installation into another spinning station.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 18, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Kurt Lovas, Bernd Bahlmann, Hans Landwehrkamp, Edmund Schuller
  • Spinning plant machine with attachment for can transporting carriage
    Patent number: 5611117
    Abstract: Disclosed is a spinning mill machine for the production of fiber sliver and for the deposit of the fiber sliver in spinning cans, with an automatic can replacement device to push out full cans from the machine. A can conveying carriage is centered at the spinning mill machine by means of a centering unit. The can conveying carriage is locked at the machine in order to hold the carriage in a receiving-ready position. A signal transmitter is provided to inform the machine by signal when the can conveying carriage is full. According to the invention the centering unit, the locking unit and the signal transmitter are installed in one single assembly in immediate proximity of the spinning machine.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: March 18, 1997
    Assignee: Rieter Ingolstadt, Spinnereimaschinenbau AG
    Inventors: Hauner Friedrich, Wagner Manfred
  • Compression rod having rectangular shape
    Patent number: 5608948
    Abstract: The instant invention relates to a compression bar such as is used in the main drafting zone of drafting rollers of the textile industry. The invention considerably reduces deposits on a compression bar. The fixed compression bar has a rectangular cross-section, with its narrow faces being rounded off. On the other hand, the compression bar is rotatably mounted about its longitudinal axis, whereby the compression bar has preferably a circular cross-section.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: March 11, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Friedrich Hauner, Alfons Zehndbauer
  • Correction of a measuring signal obtained from a pair of scanning rollers and pertaining to the thickness of a textile fiber sliver
    Patent number: 5606509
    Abstract: The invention relates to the correction of an error-prone measuring signal of a pair of scanning rollers. The measuring signal is influenced by the circularity error of the pair of scanning rollers and/or by the eccentric mounting of the pair of scanning rollers. The pair of scanning rollers is used to measure the thickness of a fiber fleece or fiber sliver on a pre-spinning machine in the textile industry. The occurrence of a periodic error value in the measuring signal due to circularity error and/or eccentricity of the pair of scanning rollers is detected. The error value is stored in a position-related manner for one revolution of the scanning rollers and the stored error value is used in the operation of the scanning rollers within the cycles of rotation for the correction of the current, position-synchronous measuring signals.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: February 25, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Peter Denz, Roland Mandl, Karl Wisspeintner
  • Bearing arrangement for an open-end spinning rotor
    Patent number: 5603209
    Abstract: Bearing arrangement for an open-end spinning machine has a bearing block attached to bearing supports defined on the machine frame. A seat is defined in the bearing block for receipt of an axial bearing. An intermediate support structure member is removably attached to the bearing block and supporting ring bearings. The intermediate support structure is removable from the bearing block with the supporting ring bearings while the bearing block remains attached to the machine frame through bearing supports.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: February 18, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventor: Manfred Knabel
  • Device to convey fibers to the fiber collection groove of an open-end spinning rotor
    Patent number: 5603210
    Abstract: The instant invention relates to a device for the feeding of fibers (51) to the fiber collection groove (23) of an open-end spinning rotor (2). The latter is covered by a rotor cover (3) whose side toward the spinning rotor (2) contains a fiber guiding element (8) the inner circumferential surface (12) of which, in form of a fiber guiding surface, forms a divergence angle (W1) widening in the direction of the spinning rotor (2). The fiber guiding element (8) extends coaxially into the spinning rotor (2). A fiber feeding channel (14) lets out tangentially into its inner circumferential surface (12).
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: February 18, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Stanislav Didek, Petr Blazek, Alois Stejskal
  • Open-end spinning device
    Patent number: 5595058
    Abstract: In an open-end spinning device the spinning rotor can be replaced by a spinning rotor with a different diameter. Furthermore, the opener device is capable of being displaced in relation to the spinning rotor. The rotor cover can be adapted through replacement on the one hand to replacing the spinning rotor, and on the other hand to the then applicable position of the opener device.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 21, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventor: Werner Billner
  • Opener device for a spinning station of an open-end spinning machine
    Patent number: 5592808
    Abstract: An opener device in an open-end spinning machine includes an opener roller driven by a drive disk and a drive belt. A tension roller is movable between a first position wherein it exerts a driving tension force on the drive belt, and a second position wherein the tension roller exerts a lesser tension on the drive belt so that the drive belt can be removed from the device. A braking device includes a movable actuating element and a braking belt contacting member, such as a bolt, associated with the actuating element so as to be moved thereby. The actuating element and braking belt contacting member are movable between a first position wherein the braking belt contacting member is at a distance from the drive belt and a second position wherein the braking belt contacting member comes into the contact with the drive belt forcing the belt away from the drive disk.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: January 14, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Armin Brunner, Erich Bock
  • Bearing arrangement for an open-end spinning rotor
    Patent number: 5592807
    Abstract: An open-end spinning device has a spinning rotor with a rotor pot defining a fiber collection groove therein. A rotor shaft is provided having a diameter between 5.5 mm and 9 mm. Pairs of rotatable supporting rings supported on axles define a nip therebetween. The rotor shaft is rotatably supported in the nip. The supporting rings have a diameter between 62 mm and 82 mm. A thrust imparting device imparts an axial thrust to the rotor shaft in the direction opposite the rotor pot. A non-contacting axial bearing is disposed opposite the free end of the rotor shaft for absorbing the axial thrust without contacting the rotor shaft. The axial thrust imparting device generates an axial thrust between 1N and 7N on the rotor shaft. A driving device contacts the rotor shaft for rotatably driving the rotor and has a contact pressure with the rotor shaft from between 8N and 39N.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: January 14, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Josef Breitenhuber, Erich Bock, Gallus Lindner, Manfred Knabel
  • Device for the laying of yarn on a cross-wound bobbin
    Patent number: 5591524
    Abstract: The invention relates to a yarn guidance rod and to a device for the laying of a yarn on a cross-wound bobbin in a textile machine. A plurality of winding stations installed next to each other is serviced by a yarn guidance rod made of a carbon fiber reinforced plastic which can be moved back and forth. The yarn guidance rod is provided with a sheathing. The yarn guidance rod has segments made of a highly heat-expandable material in order to achieve heat compensation as compared with the textile machine.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: January 7, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Romeo Pohn, Siegmar Braun
  • Process and device for the constitution of a yarn end reserve winding on bobbins of the textile machine
    Patent number: 5590843
    Abstract: A method for producing a yarn reserve, in particular on a cross wound package carried on a bobbin former which has an end which projects beyond the package. A groove is provided in the end portion for securing the yarn as the yarn is wrapped therearound before being brought back over the surface of the package for producing a yarn end reserve.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: January 7, 1997
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Dietmar Greis, Walter Mayer
  • Device for adjusting the contact pressure of a pressure roller against the draw-off shaft of a rotor spinning machine
    Patent number: 5586427
    Abstract: A yarn draw-off device for use with a spinning machine includes a pressure roller and a rotatably driven draw-off shaft. The pressure roller is in contact with the draw-off shaft and is rotatably driven by the shaft. An adjustable mounting device is provided for the pressure roller. The pressure roller is rotatably mounted on the mounting device. The mounting device is selectively movable relative to the draw-off shaft so as to vary the contact pressure between the pressure roller and the draw-off shaft.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: December 24, 1996
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Romeo Pohn, Edmund Schuller
  • Process and device to correct the regulation onset point and the intensity of regulation
    Patent number: 5583781
    Abstract: A process and a device for the correction of the regulation onset point and of the intensity of regulation relate to a regulated drawing frame of the textile industry, i.e. a drawing frame in which drafting can be regulated or can be changed in a controlled manner. A selected transient signal of the fiber sliver thickness starts the process for a limited time span so that, independently of the existing regulation, the response signal is detected at the drawing frame output and its difference with the input signal is evaluated in order to correct the regulation onset point and/or the intensity of regulation.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: December 10, 1996
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Peter Denz, Johann-Christian Promoli
  • Process for open-end spinning
    Patent number: 5581991
    Abstract: In open-end spinning, the fibers coming from an opener unit, upon leaving a fiber feeding channel (3), are conveyed to a fiber guiding surface (10) and then to a fiber collection groove (11) of a rotating spinning rotor (1) in which the fibers are deposited and are then spun into the end of a continuously withdrawn yarn. In this spinning process, the fibers coming out of the fiber feeding channel (3) are first compressed essentially in one plane and are at the same time spread out in the direction of rotation of the spinning rotor (1) to be then fed onto a portion of the circumference of the spinning rotor (1) in the form of a thin veil.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 10, 1996
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventor: Werner Billner
  • Process for positioning a fiber sliver on a flat can
    Patent number: 5581849
    Abstract: The process for the positioning of a fiber sliver end is characterized in that in the stopped position of the flat can a drafting point is formed in the fiber sliver between the pair of calendar rollers and the sliver guiding channel and in that subsequent displacement of the flat can into a transfer position causes the fiber sliver to be severed at the drafting point and to be pulled out of the rotary plate, so that it is positioned with a constant length on the flat can.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: December 10, 1996
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Albert Kriegler, Bernhard Mohr
  • Soft start control apparatus for drive motors of a rotor spinning machine
    Patent number: 5569986
    Abstract: The rotor spinning machine includes a plurality of asynchronous motors for driving the operating elements of the machine. The motors run up from a standstill condition to an operating speed under the initial mass load of the operating elements. The machine includes a single soft-start control apparatus control circuit configured with the motors and the soft-start control apparatus for individually and successively connecting the motors to the soft-start control apparatus in a predetermined hierarchy.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: October 29, 1996
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Herzner Erwin, Gotz Josef
  • Process and device for the deposit of a fiber sliver end on a flat can
    Patent number: 5566425
    Abstract: The instant invention relates to the deposit of the fiber sliver end after the filling of a flat can. It is the object of the invention to deposit and prepare the sliver end in the area of the filling station on a full flat can in order to facilitate automatic handling of the flat can during transportation as well as automatic handling of the sliver end on a spinning machine at the least possible cost. The invention assumes that the positions between outlet (15) of the rotary plate (12), severing device (18) and flat can (1) in relation to each other are adjustable and that an influence on the point of deposit of the sliver end and on the length of the sliver end results from this selected setting.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: October 22, 1996
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Bernhard Mohr, Michael Ueding, Michael Strobel, Albert Kriegler