Patents by Inventor Dennis J. Vogan

Dennis J. Vogan 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).

  • Easy-open flexible pouch and apparatus and method for making same
    Patent number: 4905452
    Abstract: A pouch and a method and apparatus for forming an easy open pouch in a vertical form-fill-seal process wherein a pouch is formed from a sheet of thermoplastic film and a heat seal between pouches as they are filled serves as the top closure for the lower pouch and a bottom closure for the upper pouch, the easy open feature being provided by a U-shaped portion having a plurality of seal ribs, and a tear initiation notch.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: March 6, 1990
    Assignee: W. R. Grace & Co.
    Inventor: Dennis J. Vogan
  • Easy-open flexible pouch and apparatus and method for making same
    Patent number: 4861414
    Abstract: A pouch and a method and apparatus for forming an easy open pouch in a vertical form-fill-seal process wherein a pouch is formed from a sheet of thermoplastic film and a heat seal between pouches as they are filled serves as the top closure for the lower pouch and a bottom closure for the upper pouch, the easy open feature being provided by a U-shaped portion having a plurality of seal ribs, and a tear initiation notch.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: August 29, 1989
    Assignee: W. R. Grace & Co.
    Inventor: Dennis J. Vogan
  • Easy-open flexible pouch and apparatus and method for making same
    Patent number: 4808010
    Abstract: A pouch and a method and apparatus for forming an easy open pouch in a vertical form-fill-seal process wherein a pouch is formed from a sheet of thermoplastic film and a heat seal between pouches as they are filled serves as the top closure for the lower pouch and a bottom closure for the upper pouch, the easy open feature being provided by a U-shaped portion having a plurality of seal ribs, and a tear initiation notch.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: February 28, 1989
    Assignee: W. R. Grace & Co.
    Inventor: Dennis J. Vogan