Patents by Inventor Lon W. McIlwraith

Lon W. McIlwraith 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).

  • Apparatus for mounting and dismounting sheet material to and from a drum
    Patent number: 7669529
    Abstract: An apparatus for mounting and demounting a materials sheet onto and from a cylindrical surface of a drum (10) has clamps (40) pivotably arranged upon the sheet materials drum. The clamps have a first region (80) and a second region (70) either side of a pivot axis. The second region (70) clamps the materials sheet to the cylindrical surface (20) of the drum. A backbone (120) extends along the length of the drum and is removably attached to the drum. Push rods (90) movably arranged on the backbone are capable of being operated to push against the first region of the clamps to pivot the clamps to move the second region of the clamps. Any existing clasped materials sheet is thereby unclasped from the cylindrical surface.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: March 2, 2010
    Assignee: Eastman Kodak Company
    Inventors: Calvin D. Cummings, Lon W. McIlwraith
  • Security bar assembly
    Patent number: 5957181
    Abstract: A security bar assembly has a plurality of bars that extend across an opening and have ends joined to drive chains to provide an easily removable assembly. The bars extend between two channels positioned on opposite faces of the opening, and are slidable within the channels. The ends of the bars are retained in the channels and the ends have connections to chain links in opposing drive chains which are spaced apart a predetermined number of links to keep the bars a predetermined distance apart. A drive mechanism is provided for moving the drive chains to slide the bars in the channels and a storage area adjacent the opening associated with the channels to retain the bars when they are not in place over the opening.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: September 28, 1999
    Assignee: Ravco Innovations, Inc.
    Inventors: Moshe Cohen-Ravid, Lon W. McIlwraith
  • Automatic loader for unexposed printing plates
    Patent number: 5367360
    Abstract: An automatic loader loads multiple sizes of unexposed printing plates into an exposure unit without using cassettes. The cardboard shipping container is used as a cassette by removing the front wall. Plates are lifted and loaded by a vacuum system. Paper used to separate plates in shipping container is removed by two sets of motorized rollers. The top rollers slide the paper off the plate while the bottom rollers completely remove the separating paper from the shipping box in order to avoid jamming and allow the shipping box to be re-closed. Shipping container is used with the active side of the plates facing down in order to protect plates from accidental exposure.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: November 22, 1994
    Assignee: Creo Products Inc.
    Inventors: Lon W. McIlwraith, Timothy J. Henthorne