Dynamotive, LLC

Reinhold C Roth

Klaus Heinrich Oehr

Richard R Timewell

Harvey Donahue

Brenda Hoy

Ronald Kim

Erik L Kiesewetter

A manufactured metal member, such as a wire, having a magnetite oxide film thereon, is subjected to mechanical stress to produce cracking of the magnetite film approximately to the surface of the metal member. The metal member is then moved through an electrolysis cell bath in which the metal member forms the anode thereof, and vertically positioned steel bars form the cathode. A pulsating DC current is applied to the anode and the cathode. The current flows to the surface of the metal member via the cracks in the oxide, maintaining the metal member anode in a state of depassivation and loosening the bond between the oxide film and the metal member. The loosened magnetite is then readily cleaned off the metal member. A thermal stressing step may also be used prior to the mechanical stressing.

Method for removal of certain oxide films from metal surfaces

An actuator having first and second brake sections, one of the first and second sections movable relative to the other along a predetermined axis, spaced apart pairs of brakes in each of the brake sections, a spring connected between the first and second brake sections for biasing the first section away from the second section along the axis, a pusher rod between the first and second sections parallel to the predetermined axis, operative in response to an activating control signal to expand axially and upon removal of the control signal to contract to its original length, and a device for selectively activating the brakes in each section and the push rod such that the actuator moves in a selected direction along the axis.

Magnetostrictive ambler motor

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Vancouver, Canada

Reinhold C Roth