Patents by Inventor Robert G. Kraverath

Robert G. Kraverath 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).

  • Universal tail piece for installation in a water waste line
    Patent number: 4811431
    Abstract: A tail piece for insertion in a waste pipe of a water drainage system including a main tubular portion connected to a waste pipe, tubular branch means having central conduit means connected to the main tubular portion, and means for selectively adapting the tubular branch means for connection to an upwardly extending tube for draining an appliance into a downwardly extending tube for priming a drain trap.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: March 14, 1989
    Inventor: Robert G. Kraverath