Patents by Inventor Robert R. Fernandez

Robert R. Fernandez 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).

  • Method and apparatus for repairing leaks in water heaters
    Patent number: 4109684
    Abstract: A typical pinhole leak that has occurred along the flue pipe of a water heater is quickly and effectively repaired by employing a spring-tempered, sealant-coated cylindrical repair section that is first coaxially positioned inside the flue pipe in a compressed position and that is subsequently triggerably released to spring to an expanded position whereby a permanent sealant layer is formed between the cylindrical repair section and the flue pipe.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: August 29, 1978
    Inventor: Robert R. Fernandez