Patents by Inventor Ernest Cashwell

Ernest Cashwell 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).

  • Optical perforating apparatus and system
    Patent number: 4404452
    Abstract: Optical perforation apparatus including a rotatable assembly having first and second light reflective means supported in spaced succession for rotation about the assembly rotational axis. Each light reflective means is provided with light reflective elements arranged in a locus about the rotational axis. At least one of the means is additionally provided with light transmissive portions each arranged between mutually disposed of its light reflective elements and in alignment with a light reflective element of the other means. The light reflective elements of each means are further arranged at non-orthogonal angles to the assembly axis, thereby permitting parallel orientation of the latter axis and the laser beam.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: September 13, 1983
    Assignee: Philip Morris Incorporated
    Inventor: Ernest Cashwell
  • Apparatus for laser perforation of transported articles
    Patent number: 4349719
    Abstract: Perforations are made at locations spaced about the periphery of a cigarette by conducting separate parts of a laser beam through respective separate light paths which intersect such spaced peripheral locations.
    Type: Grant
    Filed: June 16, 1980
    Date of Patent: September 14, 1982
    Assignee: Philip Morris Incorporated
    Inventors: Ernest Cashwell, Everett C. Grollimund, Walter W. Duley, A. Clifton Lilly, Jr., Warren E. Claflin, Edward B. Stultz, Peter Martin