Patents by Inventor John A. Haggart

John A. Haggart 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).

  • Packages for carbonated beverages
    Patent number: 4854483
    Abstract: A container for carbonated beverages has an outer casing for containing a collapsible bag with a tap in which the beverage is stored and a resilient diaphragm surrounding the bag and urging it at all times towards an end closure member through which the tap of the bag projects, the diaphragm exerting a substantially constant pressure on the bag irrespective of its volume.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: August 8, 1989
    Assignee: Corrugated Products Limited
    Inventor: John A. Haggart
  • Packages for carbonated beverages
    Patent number: 4771918
    Abstract: A container for carbonated beverages has an outer casing for containing a collapsible bag with a tap in which the beverage is stored and a resilient diaphragm surrounding the bag and urging it at all times towards an end closure member through which the tap of the bag projects, the diaphragm exerting a substantially constant pressure on the bag irrespective of its volume.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: September 20, 1988
    Assignee: Corrugated Products Limited
    Inventor: John A. Haggart