Patents by Inventor Ralph Allen Cantrell

Ralph Allen Cantrell 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).

  • Publication number: 20020145320
    Abstract: A futon style sofa bed, preferably made from a metal frame, and having an elastomeric material stretched to cover the frame. The elastomeric material obviates the need for support slats, as well as cushions or a mattress. In a preferred embodiment, the frame members are made from steel tubing, and the fabric is oriented within the frame so that the warp direction (the direction of primary stretch) runs from front to back or from side to side in the seat frame, and also in the seat back. Adjusting means is disclosed, for adjusting the length and/or width of the frame, thus adjusting the tension of the fabric stretched about the frame.
    Type: Application
    Filed: April 9, 2001
    Publication date: October 10, 2002
    Inventors: Bernhard Zeiler, Ralph Allen Cantrell, Anthony R. Waldrop
  • Patent number: 5675878
    Abstract: Apparatus to continuously draw, texture and warp polyester yam in which the texturing apparatus includes texturing balls mounted on a common mount for a plurality of texturing positions which individually can be rotated into and out of position without individual adjustment of each ball after rotation back into operative position.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: October 14, 1997
    Assignee: Milliken Research Corporation
    Inventors: Robert Saul Brown, Ralph Allen Cantrell