Heat exchange – With timer – programmer – time delay – or condition responsive... – Having heating and cooling capability
Patent
1995-08-18
1998-10-13
Ford, John K.
Heat exchange
With timer, programmer, time delay, or condition responsive...
Having heating and cooling capability
165263, 165 64, 165 481, 435289, 435290, 62 32, 422109, 219543, 935 87, 935 88, F25B 2900, G05D 2320, B01L 702
Patent
active
058198423
ABSTRACT:
Independent control of multiple samples which are in close proximity. All the samples in a sample container designed for rapid heat transfer and can be independently regulated to a set point using a temperature feedback control with the temperature monitored by a temperature sensitive element. This is implemented by heating each sample independently and at the same time a cooling device produces a substantial and continuous heat flow from the sample in order to permit an adequate rate of cooling when required. The rate of heat flow through the cooling device is partly determined by a thermal resistance which is included to control the pattern and maximum rate of heat flow to designed levels. By keeping the thermal mass of the temperature controlled components to a minimum it is also possible to change the temperature of the samples very rapidly.
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Bell John Irving
Old John Michael
Potter Colin Gerald
Potter Derek Henry
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