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Class Information
Number: 374/39
Name: Thermal measuring and testing > Calorimetry > Gain or loss of heat by heat utilizing load in path of heat exchange fluid
Description: Subject matter wherein the heat measured is that taken from or added to a heat exchange fluid by a heat utilizing device through which the fluid flows.


Sub-classes under this class:

Class Number Class Name Patents
374/40 Determined by combining flow rate and temperature signals of heat exchange fluid 40


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7338202 Ultra-high temperature micro-electro-mechanical systems (MEMS)-based sensors Mar. 4, 2008
7306365 Differential scanning calorimeter accounting for heat leakage Dec. 11, 2007
7069976 Method and arrangement for controlling the temperature of the outstream flow from a heat exchanger and measuring produced heat Jul. 4, 2006
7025497 Differential scanning calorimeter accounting for heat leakage Apr. 11, 2006
6962435 Condition diagnosing Nov. 8, 2005
6960017 Non-invasive energy meter for fixed and variable flow systems Nov. 1, 2005
6948362 Flow measurement device Sep. 27, 2005
6843595 Differential scanning calorimeter accounting for heat leakage Jan. 18, 2005
6627451 Process and device for measuring combustion heat in a calorimetric bomb Sep. 30, 2003
6250371 Energy transfer systems Jun. 26, 2001
6210035 High-speed thermal analyzer Apr. 3, 2001
6203191 Method of junction temperature determination and control utilizing heat flow Mar. 20, 2001
5902043 Apparatus and method for measuring heat power consumed in or extracted from a region May. 11, 1999
5758969 Instrument for measuring the energy of optical radiation particularly laser radiation Jun. 2, 1998
5746061 Physchrometric measurement of air flow through airconditioning evaporator May. 5, 1998
5707150 Apparatus for computing BTU content in a sample of gas Jan. 13, 1998
5493100 Thermistor flow sensor and related method Feb. 20, 1996
5398694 Animal biocalorimeter and waste management system Mar. 21, 1995
5353653 Heat exchanger abnormality monitoring system Oct. 11, 1994
5297396 Air conditioning apparatus having a plurality of indoor units connected to an outdoor unit Mar. 29, 1994
5255977 Method and device for monitoring the efficiency of a condenser Oct. 26, 1993
5215704 Method and apparatus for in situ testing of heat exchangers Jun. 1, 1993
4993842 Calorimetric detection unit and calorimetric member for conduction flow type calorimeter Feb. 19, 1991
4851013 Gasification process Jul. 25, 1989
4764024 Steam trap monitor Aug. 16, 1988
4718478 Procedure for controlling a thermal installation Jan. 12, 1988
4639876 Multi-unit energy use monitor Jan. 27, 1987
4618266 Measurement of energy in flowing fluid Oct. 21, 1986
4591988 Energy cost allocation method and system May. 27, 1986
4577977 Energy submetering system Mar. 25, 1986
4558958 Energy consumption indicating system Dec. 17, 1985
4538925 Thermal power measuring device Sep. 3, 1985
4531843 Calorimeter Jul. 30, 1985
4509679 Energy use monitoring system Apr. 9, 1985
4485449 Method and apparatus for the direct measurement of thermal energy transferred by a fluid medium Nov. 27, 1984
4484471 Flow meters Nov. 27, 1984
4473307 Heat meter system including means for separate, automatic registration of heat consumption Sep. 25, 1984
4459041 Method and apparatus for the indirect measuring of thermal energy Jul. 10, 1984
4455095 System for measuring the heat energy emission of room heating elements Jun. 19, 1984
4450726 Flow-operated measuring apparatus May. 29, 1984
4440507 Procedure for measuring thermal energy transported by fluid flow Apr. 3, 1984
4437771 Method and apparatus for indirect measurement of thermal energy Mar. 20, 1984
4432232 Device and method for measuring the coefficient of performance of a heat pump Feb. 21, 1984
4412647 Measuring use of heat or the like at individual zones supplied from one source Nov. 1, 1983
4409834 Evapopsychrometer Oct. 18, 1983
4363441 Thermal energy usage meter for multiple unit building Dec. 14, 1982
4362404 Heat measuring apparatus and method for use in a continuous fluid stream Dec. 7, 1982
4355908 Device for measuring the mass flow and the heat flow and method for determining the mass flow Oct. 26, 1982
4354504 Thermal diffusion flow probe Oct. 19, 1982
4308992 Metered-usage variable-volume air distribution system Jan. 5, 1982

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