Patents by Inventor Frank J. Rowell

Frank J. Rowell 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).

  • Containers of flexible material
    Patent number: 4509642
    Abstract: The invention provides a container preferably made from sheet plastics comprising a bag containing a tubular valve member, the bag being sealed with a seam at each end, the top seal having an opening therein for entry of an access tube into the valve member, and the valve member having a sealing seam which facilitates piercing of the access tube through the valve member into the bag. A second bag may be provided within the first bag.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: April 9, 1985
    Inventor: Frank J. Rowell
  • Containers and machine for making them
    Patent number: 4495748
    Abstract: The invention provides a container preferably made from sheet plastics comprising a bag containing a tubular valve member, the bag being sealed with a seam at each end, the top seal having an opening therein for entry of an access tube into the valve member, and the valve member having a sealing seam which facilitates piercing of the access tube through the valve member into the bag. A second bag may be provided within the first bag.The invention includes a machine for making the containers continuously from sheets of material.
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: January 29, 1985
    Inventor: Frank J. Rowell