F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
327/3
F25B 29/00 (2006.01) F25B 21/02 (2006.01) G05D 23/24 (2006.01)
Patent
CA 1150364
1 PHP. 1231. ABSTRACT: A device for maintaining the temperature of a body at a desired value comprises a thermo-electric heat pump sandwiched between a thermally conductive member and a heat sink. The heat sink is maintained at a substan- tially constant temperature, which is above the ambient temperature, by an electrical heating element. This reduces the effect of changes in ambient temperature and enables the heat pump to work across a substantially con- stant temperature differential. The device may be used to control the temperature of a cuvette holding a sample for analysis in a spectrophotometer in which case a radiation transparent path is provided through the device.
343393
Pye (electronic Products) Limited
Van Steinburg C.e.
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