Patents by Inventor Dietmar Grenzendorfer

Dietmar Grenzendorfer 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: 4893482
    Abstract: Warp knit fabrics, especially sewn-knitted fabrics, are produced by a method and apparatus whch results in single and multiple layer sloping fabrics having oblique and diagonal endless filling threads with respect to the boundary of the fabrics. Spaced-apart chain conveyors transport a plurality of filling-thread sections, each of which contains a plurality of endless filling threads, to a stitch-forming site. The plurality of filling-thread sections are held between and transported by the conveyors by a plurality of hooks in the conveyors. Filling thread sections are laid onto the hooks by at least one filling laying device having a guide means for laying the filling thread sections onto the hooks.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: January 16, 1990
    Assignee: VEB Kombinat Textima
    Inventors: Bertram Frenzel, Dietmar Grenzendorfer, Heinz Kemter, Wolfgang Wuensch, Peter Zeisberg
  • Patent number: 4873844
    Abstract: A method and apparatus for the production of a textile strip, by preparing and aftertreating an intermediate product, with the product textile strip being a new article of manufacture and having long weft elements, especially long weft threads, provided diagonally to the strip length, intersecting one another, and connected by longitudinal rows of stitches. The apparatus includes a device on a warp knitting machine, particularly a thread knitting machine, having at least one movable weft laying device, in order to work long weft elements or weft threads, which extend over the entire working width, into the textile strip.
    Type: Grant
    Filed: February 12, 1987
    Date of Patent: October 17, 1989
    Assignee: VEB Kombinat Textima
    Inventors: Bertram Frenzel, Dietmar Grenzendorfer, Heinz Kemter, Wolfgang Wunsch, Peter Zeisberg
  • Patent number: 4841747
    Abstract: Warp knit fabrics, especially sewn-knitted fabrics, are produced by a method and apparatus which results in single and multiple layer sloping fabrics having oblique and diagonal endless filling threads with respect to the boundary of the fabrics. Spaced-apart chain conveyors transport a plurality of filling-thread sections, each of which contains a plurality of endless filling threads, to a stitch-forming site. The plurality of filling-thread sections are held between and transported by the conveyors by a plurality of hooks in the conveyors. Filling thread sections are laid onto the hooks by at least one filling laying device having a guide means for laying the filling thread sections onto the hooks.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: June 27, 1989
    Assignee: VEB Kombinat Textima
    Inventors: Bertram Frenzel, Dietmar Grenzendorfer, Heinz Kemter, Wolfgang Wuensch, Peter Zeisberg
  • Patent number: 4628571
    Abstract: A non-woven fabric is produced by the transportation of a fiber flow at an angle which is less than 90.degree. to the transport direction of the non-woven fabric to be manufactured, with the feed rate of the fiber flow being controlled, the fibers which are to form a fiber layer being placed next to one another, and with the formed fiber layer being simultaneously, and in the lateral border areas of the fiber layers, being consecutively, combined with the preceding fiber layer, reinforcing the produced non-woven fabric. The angle of the fiber flow to the transport direction of the non-woven fabric to be manufactured is set between 0.degree. and 89.degree.. The controlling of the fiber flow comprises monitoring of the quantity feed rate and/or dissociation of the fiber flow and/or fiber mixing, immediately prior to the formation of a fiber layer.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: December 16, 1986
    Assignee: VEB Kombinat Textima
    Inventors: Karl Marx, Peter Offermann, Ralf-Dieter Reumann, Matthias Magel, Bertram Frenzel, Dietmar Grenzendorfer
  • Patent number: 4589169
    Abstract: A non-woven fabric is produced by the transportation of a fiber flow at an angle which is less than 90.degree. to the transport direction of the non-woven fabric to be manufactured, with the feed rate of the fiber flow being controlled, the fibers which are to form a fiber layer being placed next to one another, and with the formed fiber layer, including lateral border areas of the fiber layers, being combined with the preceding fiber layer, reinforcing the produced non-woven fabric. The angle of the fiber flow to the transport direction of the non-woven fabric to be manufactured is set between 0.degree. and 89.degree.. The controlling of the fiber flow comprises monitoring of the quantity feed rate and/or dissociation of the fiber flow and/or fiber mixing, immediately prior to the formation of a fiber layer. In order to combine the formed fiber layer with the preceding fiber layer, this is placed adjacent to the formed fiber layer, or placed on at least one formed fiber layer.
    Type: Grant
    Filed: January 12, 1984
    Date of Patent: May 20, 1986
    Assignee: VEB Kombinat Textima
    Inventors: Karl Marx, Peter Offermann, Ralf-Dieter Reumann, Matthias Magel, Bertram Frenzel, Dietmar Grenzendorfer
  • Patent number: 4503688
    Abstract: The present invention is directed to a warp stitching machine comprising a means for guiding a warp element onto a base material on which the warp element is to be formed into a warp of stitches. This guiding means for the chain element is situated on a bracing means in the warp stitching machine, and is preferably in the form of oblique channels for directing the warp element onto the base material.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: March 12, 1985
    Assignee: VEB Kombinat Textima
    Inventors: Wolfgang Vogel, Werner Trinks, Horst Heilmann, Dietmar Grenzendorfer, Dietmar Wolfermann