Patents by Inventor Karl Walz, Sr.

Karl Walz, Sr. 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).

  • Patent number: 4363419
    Abstract: This invention relates to self-storing can opening means suitable for permanent attachment to thin-walled metal beverage cans and incorporates a thin-walled metal cover for a can including an initially sealed flap portion thereof moveable to provide a raw edged circular access opening therethrough by means of an easily manually moveable pull tab permanently attached to the cover with a circular ring portion thereof initially secured in a first ready position adjacent to the cover and finally secured in a second protective position flush with the cover with its circular periphery deformably engaging and thereby sealing the circular peripheral raw edge of the access opening through the cover.
    Type: Grant
    Filed: September 8, 1981
    Date of Patent: December 14, 1982
    Inventor: Karl Walz, Sr.