Patents by Inventor Michel R. Caron

Michel R. Caron 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).

  • Blown tubing method and apparatus
    Patent number: 4624823
    Abstract: Apparatus for cooling plastic film or sheet obtained by blowing tubing, comprising at its intermediate section an intensive blowing ring for directing air towards the tubing and at its upper section an upper chamber in which the tubing is in contact with an air flow directed in the drawing direction of the tubing. At the lower section of the apparatus is a non-closed lower chamber provided with at least one opening. The apparatus can be used to form blown films having superior optical properties, particularly clarity and turbidity, from a large number of resins.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: November 25, 1986
    Assignee: Societe Chimique des Charbonnages S.A.
    Inventors: Joel Audureau, Michel R. Caron, Vincent Hervais