| |
 |
|
Class Information
Number: 73/204.27
Name: Measuring and testing > Volume or rate of flow > Thermal type > Having particular electrical heating, cooling, or thermal sensing element > Resistive element > Wire type (e.g., hot wire)
Description: Subject matter wherein a thin wire forms both a resistive temperature sensor and a resistance heater.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7617724 |
Thermal mass flow meter having a heater and paired temperature sensor chips separately formed and mounted on the flow pipe |
Nov. 17, 2009 |
| 7591177 |
Flow sensor and mass flow controller using the same |
Sep. 22, 2009 |
| 7587938 |
Thermal type flow meter including a secondary heating device to suppress heat transfer |
Sep. 15, 2009 |
| 7565836 |
Thermal type flow sensor having a second control circuit to control a second heating resistor above the first heating temperature |
Jul. 28, 2009 |
| 7555945 |
Mass air flow sensor having off axis converging and diverging nozzles |
Jul. 7, 2009 |
| 7552633 |
Thermal type gas flowmeter |
Jun. 30, 2009 |
| 7528737 |
Temperature responsive indicators for process control instruments |
May. 5, 2009 |
| 7478556 |
Apparatus for the rapid measurement of temperatures in a hot gas flow |
Jan. 20, 2009 |
| 7444863 |
Thermal mass flowmeter |
Nov. 4, 2008 |
| 7418859 |
Device for measuring a volume flow with inductive coupling |
Sep. 2, 2008 |
| 7415935 |
System for determining the air flow conditions around one or more sails |
Aug. 26, 2008 |
| 7249503 |
Tube and die interface for liquid flow sensing through the tube |
Jul. 31, 2007 |
| RE39466 |
Flow rate sensor implementing a plurality of inner tubes located within a sensor tube |
Jan. 16, 2007 |
| 7121139 |
Thermal mass flow rate sensor having fixed bypass ratio |
Oct. 17, 2006 |
| 7028544 |
Mass flowmeter for measuring by the CT method |
Apr. 18, 2006 |
| 7016790 |
In-line hot-wire sensor for slurry monitoring |
Mar. 21, 2006 |
| 7000465 |
Attitude error self-correction for thermal sensors of mass flow meters and controllers |
Feb. 21, 2006 |
| 7000464 |
Measuring and control of low fluid flow rates with heated conduit walls |
Feb. 21, 2006 |
| 6988400 |
Mass flowmeter having measuring ranges measured by two separate methods |
Jan. 24, 2006 |
| 6923054 |
Microscale out-of-plane anemometer |
Aug. 2, 2005 |
| 6901795 |
Oscillating hot wire of hot film flow sensor |
Jun. 7, 2005 |
| 6874362 |
Mass air flow sensor with stress free sensor element mounting |
Apr. 5, 2005 |
| 6843123 |
Flow rate sensor, flow rate measuring device, and flow rate control device |
Jan. 18, 2005 |
| 6840116 |
Kelvin sensed hot-wire anemometer |
Jan. 11, 2005 |
| 6813945 |
Resistive wire mass flow meters |
Nov. 9, 2004 |
| 6779396 |
Method for measuring flow within an open tube |
Aug. 24, 2004 |
| 6736005 |
High accuracy measuring and control of low fluid flow rates |
May. 18, 2004 |
| 6729187 |
Self-compensated ceramic strain gage for use at high temperatures |
May. 4, 2004 |
| 6688170 |
Sensor for measuring flow velocity in gases and method for the production thereof |
Feb. 10, 2004 |
| 6681625 |
Constant-temperature-difference bidirectional flow sensor |
Jan. 27, 2004 |
| 6670582 |
Micro-thermocouple for a mass flow meter |
Dec. 30, 2003 |
| 6637264 |
Mass flowmeter |
Oct. 28, 2003 |
| 6628202 |
Thermal dispersion mass flow rate and liquid level switch/transmitter |
Sep. 30, 2003 |
| 6595049 |
Thermal mass flow sensor with improved sensitivity and response time |
Jul. 22, 2003 |
| 6568261 |
Hot wire gas flow sensor |
May. 27, 2003 |
| 6564629 |
Thermal flowmeter |
May. 20, 2003 |
| 6446504 |
Constant temperature gradient differential thermal mass flow sensor |
Sep. 10, 2002 |
| 6354150 |
Sensor for a capillary tube of a mass flow meter |
Mar. 12, 2002 |
| 6318171 |
Flow rate sensor implementing a plurality of inner tubes located within a sensor tube |
Nov. 20, 2001 |
| 6269692 |
Mass flow measuring assembly having low pressure drop and fast response time |
Aug. 7, 2001 |
| 6208254 |
Thermal dispersion mass flow rate and liquid level switch/transmitter |
Mar. 27, 2001 |
| 6125695 |
Method and apparatus for measuring a fluid |
Oct. 3, 2000 |
| 6119529 |
Fluid flow meter and corresponding flow measuring methods |
Sep. 19, 2000 |
| 6085588 |
Flow rate sensor |
Jul. 11, 2000 |
| 6062077 |
Techniques for making and using a sensing assembly for a mass flow controller |
May. 16, 2000 |
| 5948978 |
Induction heated mass flow sensor |
Sep. 7, 1999 |
| 5936156 |
Liquid metering |
Aug. 10, 1999 |
| 5792952 |
Fluid thermal mass flow sensor |
Aug. 11, 1998 |
| 5783757 |
Methods and apparatus for measuring a speed of flow of a fluid |
Jul. 21, 1998 |
| 5596969 |
Flow conditioning gas mass sensor |
Jan. 28, 1997 |
|
|
|
