Calorimeter
AssigneeLeco Corporation
InventorsKevin R. Brushwyler, John T. Hoss, Octavio R. Latino
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Abstract
A calorimeter includes a bucket cover which is used to reconfigure an isothermal water reservoir to provide for temperature equilibration prior to sample analysis and subsequently define a fixed volume of water during analysis in which high precision temperature measurements can be recorded. The apparatus includes mechanisms for sealing and controlling the cover, and for coupling the combustion vessel to the cover while minimizing the thermal contact between them. Improved thermal isolation between the fixed volume of water and the surrounding environment is also achieved.
Claims7
A calorimeter system including an isothermal reservoir comprising:
- a calorimeter combustion vessel;
- an outer jacket having a wall, a fluid inlet and a fluid outlet;
- a heater and a pump associated with said jacket for circulating fluid from said fluid outlet through said heater to said inlet to provide a constant temperature of fluid within said jacket;
- a thermally insulated bucket positioned within said jacket and having an internal volume for receiving said calorimeter combustion vessel, said bucket having a height less than the height of said jacket such that fluid in said jacket fills said bucket;
- and
- a movable cover selectively coupled to said calorimeter combustion vessel and including a seal engaging said bucket for sealing said bucket from said jacket during combustion of a sample within said combustion vessel.
Dependencies are inferred from the claim text.