Thermal measuring and testing – Calorimetry – With control of heat added to or lost from a sample container
Reexamination Certificate
2006-05-03
2009-02-10
Lefkowitz, Edward (Department: 2855)
Thermal measuring and testing
Calorimetry
With control of heat added to or lost from a sample container
C374S031000, C374S036000, C422S051000, C436S137000
Reexamination Certificate
active
07488106
ABSTRACT:
An automated apparatus for determining the calorific value of combustible substances employs an integrated, isothermal water reservoir to reduce the complexity of the apparatus and facilitates automation of the calorimeter by providing a convenient source of isothermal water. A moving divider is used to reconfigure the isothermal water reservoir to either provide for temperature equilibration prior to sample analysis or define a fixed volume of water during analysis in which high precision temperature measurements can be recorded. The apparatus includes mechanisms for controlling the moving divider, a sample holding combustion vessel, and loading, cleaning, and unloading the combustion vessel. This eliminates key analysis steps that had previously required manual intervention by an operator.
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Koehler Instruments Model K88800□□http://web.archive.org/web/20061104094452/http://www.koehlerinstrument.com/products/K88800.html□□Published date: Nov. 4, 2006.
Perkin Elmer Jade DSC□□http://las.perkinelmer.com/content/RelatedMaterials/Brochures/BRO—JadeDSCDiffScanningCalorimeter.pdf□□No publication date.□□First visited Apr. 23, 2008.
U-Therm Inc Model JingYing□□http://www.u-therm.net/productdetail.aspx?id=36□□No publication date.□□First visited Apr. 23, 2008.
Adams Bret
Leco Corporation
Lefkowitz Edward
Price Heneveld Cooper DeWitt & Litton LLP
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