Patents by Inventor C. Fred Kreiser

C. Fred Kreiser 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).

  • Segmented sacrificial anode attachment to water heating element
    Patent number: 4017714
    Abstract: The attachment is easily replaced, is flexible and elongated, and is adapted to be inserted into a tank for heating a liquid through an opening provided in the metal shell of the tank for mounting an electric immersion heater in the tank. The attachment includes a chain of metal segments which are interconnected by flexible metal wire and which are anodic to the metal shell, and includes a clamp for releasably, and electrically and mechanically, connecting one end of the chain of segments to the sheathed and grounded legs of the immersion heater.
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: April 12, 1977
    Assignee: Electro-Therm, Inc.
    Inventor: C. Fred Kreiser