Dresser Industries, Inc.

Samuel D Fegan

John W Erickson

A pressure variable sealed container such as a length of rubber tubing is filled with a compressible, thermally conductive fluid such as helium or hydrogen and is placed in a sealed motor stator chamber otherwise filled with a heat conductive liquid, such as oil, before final assembly. As the oil in the stator chamber expands with temperature, the thermally conductive fluid in the container is compressed thereby absorbing the expansion of the oil in the stator chamber.

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King of Prussia, PA, United States of America

Samuel D Fegan