Patents by Inventor Bruce A. Luff

Bruce A. Luff 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).

  • Method and apparatus for recovering thermoplastic from coated fabric scrap
    Patent number: 4483488
    Abstract: The invention relates to cryogenically cooling and impacting thermoplastic coated fabric to liberate the thermoplastic from the fabric and screening the resulting thermoplastic fabric mixture in a multi-deck vibratory screener into a coarse fabric segment, a thermoplastic fines segment and a third segment. The third segment is separated into a fabric fines segment and a coarse thermoplastic segment in, for example, an air classifier. The recovered thermoplastic coarse and fines segments can be reused in all applications for regrind thermoplastic material.
    Type: Grant
    Filed: April 21, 1983
    Date of Patent: November 20, 1984
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Bruce A. Luff, Michael C. Kazarnowicz