Patents by Inventor Robert D. MacArthur

Robert D. MacArthur 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).

  • Float controlled valve
    Patent number: 5080126
    Abstract: A float controlled valve has a float chamber for accumulating a fluid, a pivoting float arm having a float mounted on one end thereof for fluid level determined movement within the chamber, a pivotally mounted actuator arm coupled to the float arm by a magnet driver and having a first magnet mounted at one end of the actuator arm; a pivotally mounted control arm having a second magnet attached thereto, in magnet coupling relationship with the first magnet, and valve means coupled to the pivotally mounted control arm for controlling fluid flow from the chamber in response to movement of the float.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: January 14, 1992
    Assignee: R. P. Fedder Corporation
    Inventors: Edward F. De Rycke, Gordon F. Leonard, Robert D. MacArthur