Patents by Inventor Donald R. Wuerzer

Donald R. Wuerzer 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 of manufacture of slip ring assembly
    Patent number: 4782580
    Abstract: A method for making a slip ring assembly contemplates welding to one face of each of a plurality of varying diameter concentric conducting rings a plurality of electrically conducting studs, positioning a plurality of the rings within grooves inscribed in a first mold section in an accurately spaced concentric arrangement with respect to each other, surrounding the rings radially interiorly thereof with one or more pre-cut insulating plies, placing insulating material in the spaces between the concentrically spaced rings and radially outwardly thereof, positioning a plurality of pre-cut insulating plies axially of the rings and insulating material aligned to permit passage of the studs through pre-cut holes in the plies, closing a second mold section on the first mold section, and heating the assembly under pressure in the mold sections until the assembly is cured.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: November 8, 1988
    Assignee: National Machine Company, Inc.
    Inventors: Joseph C. Cacioppo, Donald R. Wuerzer, Peter J. Piglia
  • Slip ring assembly and method of manufacture
    Patent number: 4705976
    Abstract: A method for making a slip ring assembly contemplates welding to one face of each of a plurality of varying diameter concentric conducting rings a plurality of electrically conducting studs, positioning a plurality of the rings within grooves inscribed in a first mold section in an accurately spaced concentric arrangement with respect to each other, surrounding the rings radially interiorly thereof with one or more pre-cut insulating plies, placing insulating material in the spaces between the concentrically spaced rings and radially outwardly thereof, positioning a plurality of pre-cut insulating plies axially of the rings and insulating material aligned to permit passage of the studs through pre-cut holes in the plies, closing a second mold section on the first mold section, and heating the assembly under pressure in the mold sections until the assembly is cured.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: November 10, 1987
    Assignee: National Machine Company, Inc.
    Inventors: Joseph C. Cacioppo, Donald R. Wuerzer, Peter J. Piglia