Patents by Inventor Ronald J. Rumbley

Ronald J. Rumbley 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).

  • Electric water heater with radially extending overlapped horizontal heating element arranged in vertically spaced aligned sets
    Patent number: 5187772
    Abstract: An electric water heater includes a cylindrical tank with an inner surface defining a water chamber having a central vertical axis. Three sets of three electric immersion heating extend radially inwardly into the water chamber from the inner surface. The heating elements of such set define generally horizontal planes vertically spaced apart along the vertical axis. The heating elements of each set lie in angularly spaced generally vertical planes intersecting the central axis and being spaced approximately 120.degree. apart with the inner ends of the respective heating elements being in overlapping spaced relationship along the vertical axis to provide the most heat at the center of the chamber where it is most needed.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: February 16, 1993
    Assignee: AOS Holding Company
    Inventor: Ronald J. Rumbley