Patents by Inventor Douglas A. Edgerton

Douglas A. Edgerton 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).

  • Patent number: 5604391
    Abstract: A method for assembling a high current commutator and winding to form an armature includes positioning end portions of pairs of conductors against a connection portion of a segment on the commutator. A support member is engaged with the connection portion while a connection member, such as an electrode or sonotrode, applies energy to fuse together the stack formed by the connection portion and the conductor ends together. The connection member and the support member are then disengaged from the stack after the stack is fused together. The apparatus for assembling the armature includes connection member and the support member. The support member confines the securing energies to the stack thus allowing the commutator segments, connection portions and a core of the commutator to be made lighter.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: February 18, 1997
    Assignee: Watliff Company Limited
    Inventor: Douglas A. Edgerton