Patents by Inventor by Carl Burckhardt, executor

by Carl Burckhardt, executor 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).

  • Dome-shaped pressurized can
    Patent number: 5217139
    Abstract: A dome-shaped pressurized can contains a foil sack for holding a substrate, which is positioned in the can cylinder, whose upper edge is fastened in a welt connecting the can cylinder with a dome cover. The upper edge of the foil sack is clamped between the inner wall, the double cylinder and an adjacent edge of the dome and the clamped edge of the foil sack has a diameter which is larger than the diameter of the adjoining sack cylinder and rests on the inside of the can cylinder.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: June 8, 1993
    Inventors: Franz L. Miczka, deceased, by Carl Burckhardt, executor