Patents Represented by Attorney Raymond A. Eckersly

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  • Commutator stud vibration damping arrangement
    Patent number: 4572978
    Abstract: In a commutator formed by a plurality of commutator bars clamped between an annular shell and a clamping ring held together by studs, the life of the commutator may be extended significantly by imposing a resilient damper between the stud and the inside wall of a passage in the shell or ring, or both. The damper is spaced inwardly from the end of the stud, preferably by an amount approximately equal to one third of the length of the stud.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: February 25, 1986
    Assignee: Canadian General Electric Company Limited
    Inventor: Martin VanDuyn