Patents by Inventor Richardt E. Ruberg

Richardt E. Ruberg 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).

  • Kitchen appliance for storing perishable goods
    Patent number: 4278114
    Abstract: A container with an air tight lip incorporating a check valve for only evacuating air from the container by a piston suction pump sealed against the lip and around the check valve; the pump being arranged to receive manual pressure to produce the suction stroke and to simultaneously enhance the seal between the lip and the pump.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: July 14, 1981
    Assignee: Zyliss Zysset AG
    Inventor: Richardt E. Ruberg