WATERLESS VESSEL HEATING SYSTEM AND METHOD

WIPO Patent Application WO2003010999

A3

A dissolution testing system comprises a vessel plate on which a plurality of vessels are mounted. Each vessel includes a lateral wall having an outer surface around which a plurality of flexible heater elements are attached. Each heater element includes a transparent surface area, a heat conductive element extending along the transparent surface area, a temperature sensing element extending along the transparent surface area, and an electrical contact element connected to the heat conductive element and the temperature sensing element. The heater element can have more than one heating zone, with at least one of the heating zones being selectively energizable. The transparent heater element allows unobstructed view into the interior of its vessel, and reduces the time required to achieve a stabilized set point temperature in the vessel. A heater control system communicates with each heat conductive element and each temperature sensing element through a corresponding one of the electrical contact elements. The heater control system permits each vessel to be controlled independently of the other vessels.

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FERNANDO C J ANTHONY
SWON JAMES E
HAW MICHAEL F

PCT/US2002/023022

March 04, 2004

July 19, 2002

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VARIAN INC (US)

B01F1/00; B01J19/00; B01L7/00; G01N13/00; H05B1/02; G01N1/28; H05B3/00; H05B3/02; H05B3/10; H05B3/20; H05B3/34; H05B3/54; G01N33/15; (IPC1-7): H05B1/02; H05B3/26; H05B3/28; H05B3/34; H05B3/36; B01L7/00

WO1995023329A1	1995-08-31
WO1992010294A1	1992-06-25

US4797537A	1989-01-10
US4149066A	1979-04-10

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