Patents by Inventor Robert E. Roschen

Robert E. Roschen 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: 6119489
    Abstract: A knitting machine part which is resistant to abrasion caused by knitting a yarn of cut-resistant fiber contains: (i) a base substrate having at least one yarn-contacting region for contacting the yarn during the knitting process, and (ii) a coating disposed on the surface of the base substrate on at least the yarn-contacting region of the base substrate, wherein the coating contains titanium carbonitride having a carbon-to-nitrogen weight ratio of from about 1:4 to 4:1, preferably from about 1:1.5 to 1.5:1, most preferably about 1:1. The knitting machine part is preferably a knitting needle or a sinker. The cut-resistant yarn is preferably composed of at least one cut-resistant fiber formed from a fiber-forming polymer and a hard filler having a Mohs Hardness value of at least about 3, the hard filler being distributed in the fiber-forming polymer.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: September 19, 2000
    Assignee: HNA Holdings, Inc.
    Inventors: Robert E. Roschen, Herman Leslie Lanieve, Scott W. Thompson
  • Patent number: 5597649
    Abstract: Composite yarns having exceptional cut resistance are made by combining at least two different kinds of fiber, as follows: (a) a high modulus fiber having a modulus greater than about 200 gpd as measured by ASTM Test Method D-3822; and (b) a particle-filled fiber, which is made from a semi-crystalline polymer, such as poly(ethylene terephthalate), and hard particles having a Mohs Hardness Value greater than about 3.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: January 28, 1997
    Assignee: Hoechst Celanese Corp.
    Inventors: Robert B. Sandor, Herman L. LaNieve, III, Robert E. Roschen