Patents by Inventor Robert Cree

Robert Cree 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).

  • Oscillating hauloff with bearings along central axis
    Publication number: 20070194502
    Abstract: An oscillating hauloff for blown film has a bearing structure positioned along the vertical process centerline. The bearing structure is separated into upper and lower sections to maintain a clear and open pathway for the web to pass across the process centerline. Passing the web across the process centerline allows the web to change directions before passing over a second turning bar, thus canceling any web wandering introduced by a first turning bar.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Applicant: Addex, Inc.
    Inventors: Robert Cree, Frank Luebke
  • Electrostatic tension control of webs
    Publication number: 20060180697
    Abstract: An electrostatic charging system holds a film web to a roll without significant slippage, thus allowing for proper tension control of the web even with extreme differences in tension upstream and downstream of the motorized roll. The system can electrostatically transfer a web using motorized drum rolls with an internally integrated web severing knife.
    Type: Application
    Filed: February 17, 2005
    Publication date: August 17, 2006
    Applicant: Addex, Inc.
    Inventor: Robert Cree
  • Regular division of molten extrusion flow
    Publication number: 20050271762
    Abstract: A blown film die divides a flow of material into two flows with higher and lower flow portions and recombines the flow by combining higher flow portions with lower flow portions. The flow can be divided in circumferential channels between an annular feed ring and an annular distribution ring.
    Type: Application
    Filed: July 28, 2005
    Publication date: December 8, 2005
    Applicant: Addex, Inc.
    Inventor: Robert Cree