Patents by Inventor Rodney W. Applegate

Rodney W. Applegate 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).

  • Apparatus and system for driving a fan using a linear induction motor
    Patent number: 7402932
    Abstract: The present invention provides a system and apparatus that includes an induction motor and/or a fan assembly. The motor includes a housing having an aperture and a shaft axially disposed within the housing and having an end extending through the aperture. The motor also includes a rotor that has one or more sets of radius extenders connected to the shaft within the housing, and a stator disposed within the housing and separated from the rotor by an air gap. The rotor typically includes one or more sets of permanent magnets attached along a perimeter of the radius extenders and at least a portion of the radius extenders is made of a magnetically conductive material. The stator typically includes a core structure of magnetically conductive material having a set of slots arranged on an internal face of the core structure and one or more sets of coils disposed within the slots.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: July 22, 2008
    Inventor: Rodney W. Applegate