Patents by Inventor Timothy W. Duffy

Timothy W. Duffy 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).

  • Laser processing of discrete sheets of material
    Patent number: 6028289
    Abstract: A process for performing a laser treatment on discrete sheets of material is disclosed. The present invention provides for shingling discrete sheets of material and for tracking and contacting a laser beam on the continuously moving shingled sheets.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: February 22, 2000
    Assignee: SIG Combibloc Inc.
    Inventors: Arthur W. Robichaud, Timothy W. Duffy
  • Processing discrete sheets of material
    Patent number: 5849134
    Abstract: Discrete sheets are shingled to acquire lower speeds of material passage through a process application zone of the system while maintaining overall system throughput rates when compared to conventional web systems.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: December 15, 1998
    Assignee: Combibloc, Inc.
    Inventors: Arthur W. Robichaud, Timothy W. Duffy
  • Laser processing of discrete sheets of material
    Patent number: 5843364
    Abstract: A process for performing a laser treatment on discrete sheets of material. The present invention provides for shingling discrete sheets of material and for tracking and contacting a laser beam on the continuously moving shingled sheets.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: December 1, 1998
    Assignee: Combibloc, Inc.
    Inventors: Arthur W. Robichaud, Timothy W. Duffy
  • Laser processing of discrete sheets of material
    Patent number: 5688463
    Abstract: A process for performing a laser treatment on discrete sheets of material. The present invention provides for shingling discrete sheets of material and for tracking and contacting a laser beam on the continuously moving shingled sheets.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: November 18, 1997
    Assignee: Combibloc, Inc.
    Inventors: Arthur W. Robichaud, Timothy W. Duffy