Patents by Inventor Robert G. Whelan

Robert G. Whelan 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).

  • Method and apparatus for forming an extrusion
    Patent number: 7422711
    Abstract: A method of forming an extrusion comprises passing a first, plastics material (12) through a first channel (104) in a die, passing a second, plastics material (14) through a second channel (112) in the die, and passing a third, plastics material (16) through a third channel (314) in the die. At least one of the materials is passed through a metering gap into contact with the other materials to cause the at least one material to bond with the other materials as the materials pass through the die.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: September 9, 2008
    Assignee: Plastech Multiseals Limited
    Inventors: Richard S. Whelan, Robert G. Whelan
  • Method and apparatus for forming an extrusion
    Publication number: 20040169309
    Abstract: A method of forming an extrusion comprises passing a first, plastics material (12) through a first channel (104) in a die, passing a second, plastics material (14) through a second channel (112) in the die, and passing a third, plastics material (16) through a third channel (314) in the die. At least one of the materials is passed through a metering gap into contact with the other other materials to cause the at least one material to bond with the other materials as the materials pass through the die.
    Type: Application
    Filed: April 21, 2004
    Publication date: September 2, 2004
    Inventors: Richard S. Whelan, Robert G. Whelan