Patents Assigned to Clear Armor, LLC
  • Apparatus for a mold vacuum system and method of forming a sheet utilizing the system
    Patent number: 8251688
    Abstract: A method and an apparatus to form a sheet of polymeric material have first and second mold halves which clamp together on a polymeric sheet. A vacuum mechanism draws the sheet into an interior space. The vacuum mechanism has a plurality of controllable vacuum ports positioned about the interior space to direct the vacuum at specific portions of the sheet. Also, the sensing mechanism determines the draw depth of the sheet.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: August 28, 2012
    Assignees: PH Realty, Inc., Clear Armor, LLC
    Inventors: Edwin J. Oakey, Rodney M. Tinney