Patents Assigned to Artec Design GmbH
  • Patent number: 4769980
    Abstract: A yarn twisting apparatus is disclosed which comprises a central spindle and a coaxially disposed yarn package carrier. A central wheel is fixedly mounted to the spindle, and the spindle and yarn package carrier are mounted for relative rotation about the axis of the spindle. Also, an offset yarn guide is mounted to the yarn package carrier, and such that a yarn may be withdrawn from a package mounted on the yarn package carrier, and looped about the central wheel and then around the offset yarn guide. In one embodiment, a withdrawal force is applied to the yarn which causes the central wheel and offset yarn guide to relatively rotate and impart twist to the yarn, and in other embodiments one of the members is driven to impart the relative rotation. Embodiments are also disclosed for imparting a double twist to the yarn.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: September 13, 1988
    Assignee: Artec Design GmbH
    Inventor: Georg Siebert
  • Patent number: 4754599
    Abstract: A yarn twisting apparatus is disclosed for twisting a plurality of yarn strands into a composite yarn, and which comprises a central twisting spindle and yarn guide means for ballooning the yarn about the package as it is withdrawn therefrom. A common drive system is provided for rotating the ballooning means and for advancing the yarn, and a yarn accumulator is provided which is controlled by a sensor such that the drive means is operated only when the amount of yarn on the accumulator is less than a predetermined amount.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: July 5, 1988
    Assignee: Artec Design GmbH
    Inventor: Georg Siebert
  • Patent number: 4603545
    Abstract: A yarn twisting and winding apparatus is disclosed which is adapted to produce a yarn ball, and which includes a yarn support spindle (12) and surrounding flyer (19). The flyer is rotatable about a central axis (15), and the yarn support spindle is mounted so that its axis (12') intersects the central axis. Also, the spindle (12) is rotated about the central axis (15), as well as its own axis (12') during the winding operation. A yarn delivery roll (4) is mounted coaxially about the central axis, and so that the yarn is adapted to advance to the flyer, around the yarn delivery roll, back to the flyer, and then to the yarn support spindle to form a yarn ball.
    Type: Grant
    Filed: August 14, 1985
    Date of Patent: August 5, 1986
    Assignee: Artec Design GmbH
    Inventor: Georg Siebert