Patents by Inventor Leonard W. Lipscomb

Leonard W. Lipscomb 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: 8991404
    Abstract: A process and apparatus for shredding tobacco sheets, especially tobacco sheets formed of reconstituted tobacco particles with guar and sugar comprises rotating opposing sets of cutter discs in a partially overlapping relation so as to establish a nip. The cutter discs have notches at spaced locations along a peripheral portion of the cutter discs. Adjacent pairs of cutter discs are spaced apart by a spacer disc with a stripper plate interposed between adjacent pairs of spaced apart cutter discs. A tobacco sheet which is fed into the nip of the sets of cutter discs is shredded by the discs.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: March 31, 2015
    Assignee: Philip Morris USA Inc.
    Inventors: Leonard W. Lipscomb, Ricky L. Bowman
  • Patent number: 7624740
    Abstract: A tobacco curing enclosure includes roof vents, sidewall fan assemblies with heaters, a humidity augmentation system, and internal air circulation devices. Internal temperature and humidity monitors are connected with a control system for the fans, vents, heaters, humidity augmentation system and air circulation devices. The control system in conjunction with the enclosure allows humidity inside the enclosure to be controlled according to a predetermined schedule despite the ambient weather conditions, thereby enhancing the quality of cured tobacco.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: December 1, 2009
    Assignee: Philip Morris USA Inc.
    Inventors: Leonard W. Lipscomb, John D. M. Bain, Boris L. Kizzie, Michael B. Maher