Patents by Inventor Robert P. Seifert

Robert P. Seifert 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).

  • Pressure-rupturable container seal having a fluid flow directing shield
    Patent number: 5100028
    Abstract: A flexible fluid dispenser includes a flexible fluid-containing vessel which has a seal which seals a top wall of the vessel to a bottom wall and is shaped to concentrate in a region thereof forces resulting from pressure generated by applying a force to the dispenser. The dispenser further includes a shield shaped to direct fluid released from the dispenser in a desired direction. When a sufficiently large force is applied to the dispenser, the weaker top or bottom wall of the vessel ruptures, or opens, at the concentration region of the seal. The released fluid is then directed by the shield in the desired direction.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: March 31, 1992
    Assignee: Institute Guilfoyle
    Inventor: Robert P. Seifert
  • Container having a pressure-rupturable seal for dispensing contents
    Patent number: 5035348
    Abstract: A flexible fluid dispenser includes a flexible fluid-containing vessel which has a seal which seals a top wall of the vessel to a bottom wall and is shaped to concentrate in a region thereof forces resulting from pressure generated by applying a force to the dispenser. When the resulting force is sufficiently large, the weaker top or bottom wall of the vessel breaks, or opens, at the concentration region of the seal. The opening has dimensions which approximate the dimensions of the force-concentrating region of the seal.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: July 30, 1991
    Assignee: Institute Guilfoyle
    Inventor: Robert P. Seifert