Patents by Inventor Robert J. Rorrer

Robert J. Rorrer 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: 4077437
    Abstract: A double catch thread weaving apparatus including two double index dobbies, the first of which controls the basic weave of the fabric and the second of which controls a pair of slackner heddles for the two catch threads. The timing of the second dobby is offset with respect to the timing of the first dobby and the shuttle cycle to pay a sufficient amount of catch thread to obtain an edge pattern using the shuttle thread and one of the catch threads at a time.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: March 7, 1978
    Assignee: J. P. Stevens Co., Inc.
    Inventors: Junior C. Spence, Robert J. Rorrer, James L. Holt
  • Patent number: 4073320
    Abstract: A fabric has a first catch thread being woven in a main warp and forming exterior loops about a first edge warp and a shuttle thread looping around the first catch thread and forming exterior loops about a second edge warp opposite said first catch thread exterior loops. The shuttle thread is further woven into the main warp and forms exterior loops about the first edge warp. A second catch thread is woven in the main warp, looped around the shuttle thread, and forms exterior loops about a second edge warp opposite said shuttle threads exterior loops about the first edge warp.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: February 14, 1978
    Assignee: J.P. Stevens & Co., Inc.
    Inventors: Junior C. Spence, Robert J. Rorrer, James L. Holt
  • Patent number: 4004617
    Abstract: A method of weaving a fabric using, one at a time, two catch threads adjacent respectively a first edge warp and a second edge warp which are separated from the main weft by a pair of warp wires. The catch threads, edge warp and warp wires are moved or shedded in time sequence to cause one catch thread to be woven in the main warp and form exterior loops about its respective edge warp and the shuttle to form exterior loops about the opposite edge warp. The process is then reversed forming exterior loops using the second catch thread and the shuttle thread.
    Type: Grant
    Filed: November 26, 1974
    Date of Patent: January 25, 1977
    Assignee: J. P. Stevens & Co., Inc.
    Inventors: Junior C. Spence, Robert J. Rorrer, James L. Holt