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CHORUS MOTORS plc ANNOUNCES HIGH TORQUE CHORUS® MOTOR PATENT
PRESS RELEASE
Chorus Motors plc
Gibraltar 8th March 2002
CHORUS MOTORS plc ANNOUNCES HIGH TORQUE CHORUS® MOTOR PATENT
Chorus Motors plc, a subsidiary of Borealis Exploration Limited (BOREF),
announces that a patent, titled "Polyphase Induction Electrical Rotating
Machine", No. 6,351,095, was issued by the United States Patent and Trademark
Office on February 26th, 2002. Further patent applications related to the
Chorus® technology and polyphase motors are pending.
The Chorus® Motor uses new controllers and windings to substantially increase
the efficiency of AC motors. For more information about Chorus® see the Chorus
Motors plc web site at www.chorusmotors.gi. The new patent and other
issued Chorus®
patents are available on the web site.
Characteristics of the Chorus® Motor include very high start-up torque and
greater efficiency, within standard operating temperature limits. Tests have
shown marked improvements over conventional AC motors. Chorus® Motors are
especially well-suited to traction applications, such as hoists, conveyors,
electric and hybrid-electric vehicles.
The patent describes a new type of AC induction motor that can be operated at
high saturation levels, substantially beyond those associated with conventional
AC motors. The Chorus® motor also allows high flux densities, which greatly
enhances the power output when operated under saturation. This in turn leads to
the very high start-up torque characteristic of Chorus® drives.
Isaiah W. Cox, President of Chorus Motors plc, says "This patent extends our
very broad coverage of the Chorus family of motor drive technologies. The
benefits of very high start-up torque to industry are numerous - for example,
traction motors may be sized closer to the optimum size for continuous running,
while still retaining the necessary output torque for frequent starting and
stopping under load."
Borealis Exploration Limited has 4,959,262 shares issued and
outstanding. Borealis'
business is reinventing the core technologies used by basic industries,
including electric motors, steelmaking, electrical power generation,
and cooling
and refrigeration.
For further information please contact:
Chris Bourne
Director of Public Relations
Tel: +44 020 8571 5216
Fax: +44 020 8455 8701
email: pr@chorusmotors.gi
Forward Looking Statement at
http://www.borealis.com/ForwardLookingStatement.htm
Chorus® is a registered United Kingdom trademark of Borealis
Technical Limited, number 2220371.
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