Pentair Unit Awarded Patent for Submersible Pump Motor Innovation
ST. PAUL, Minn., Feb. 20 /PRNewswire/ -- Pentair (NYSE: PNR) announced
today that its Fairbanks Morse unit has received a government patent for a
newly developed submersible pump motor with a unique cooling method that
allows it to operate continuously out of the water without overheating.
Traditional submersible pumps use the fluid in which they are immersed as
a coolant. The new Fairbanks Morse closed-loop system contains a cooling
medium that is constantly circulated around the motor. The new system,
granted patent number #6,121,698 by the U.S. Patent and Trademark Office,
contains a circulating impeller, a heat exchange plate, a jacket surrounding
the motor housing, and an expansion chamber that maintains a constant
"Pumps with the new motor can be mounted in dry areas for ease of
observation and maintenance, although these areas often are prone to
flooding," said James H. Sexton, director of development engineering for
Fairbanks Morse. "The built-in submersible feature allows the pumping unit to
continue to function during the flooding, thus providing continuous
Based in Kansas City, Kan., Fairbanks Morse is one of several pump brands
aligned under the Pentair Pump Group. Since 1995, Pentair has expanded beyond
its original pump business to become a premier, diversified water equipment
company that delivered compound annual growth of 45 percent in sales and
55 percent in profits from 1995 through 2000.
Pentair ( http://www.pentair.com ) is a St. Paul-based manufacturer whose
core businesses compete in Tools, Water Technologies, and enclosures markets.
The company employs 13,000 people in more than 50 locations around the world.
For more information, contact Mark Cain of Pentair, Inc., 651-639-5278.
Source: Pentair plc.