| |
 |
|
Class Information
Number: 73/1.28
Name: Measuring and testing > Instrument proving or calibrating > Volume of flow, speed of flow, volume rate of flow, or mass rate of flow > Turbine, geared meter, pulse activated, or counter > Turbine or geared meter
Description: Subject matter wherein either (a) the apparatus for proving or calibrating or (b) the device being proven or calibrated includes either (1) a motor operated by water, steam, or air directed against cups, blades, or vanes on the rim of a wheel or (2) an instrument that measures fluent material passing through it via the use of rotary driven indicating members (i.e., geared meter).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7552614 |
System and method for determining functionality or accuracy of a sensor |
Jun. 30, 2009 |
| 7249486 |
Method for monitoring a sensor |
Jul. 31, 2007 |
| 7155956 |
Medium, method and system for proving a turbine meter |
Jan. 2, 2007 |
| 6910364 |
Diagnosis method for detecting ageing symptoms in a steam turbine |
Jun. 28, 2005 |
| 6542832 |
Error detection and correction system for use with dual-pulse output metering devices |
Apr. 1, 2003 |
| 5876610 |
Method and apparatus for monitoring liquid flow through an enclosed stream |
Mar. 2, 1999 |
| 5473932 |
Tandem rotor turbine meter and field calibration module |
Dec. 12, 1995 |
| 5251149 |
Electronic nutating disc flow meter |
Oct. 5, 1993 |
| 5207088 |
Expansion chamber method and apparatus for eliminating accuracy errors when testing gaseous flowmeters |
May. 4, 1993 |
| 5072416 |
Method and apparatus for calibrating a flowmeter using a master meter and a prover |
Dec. 10, 1991 |
| 4996870 |
Apparatus and method for proving gas meters and improved sensor therefor |
Mar. 5, 1991 |
| 4945754 |
Test water meter with digital display |
Aug. 7, 1990 |
| 4694681 |
Measuring turbine |
Sep. 22, 1987 |
| 4674316 |
Calibration system for mechanical gas volume corrector |
Jun. 23, 1987 |
| 4658634 |
Meter prover |
Apr. 21, 1987 |
| 4584864 |
Method and apparatus for proving and factoring a meter stack |
Apr. 29, 1986 |
| 4566307 |
Pipeline flow measurement proving system |
Jan. 28, 1986 |
| 4502318 |
Method and apparatus for calibrating flow meters |
Mar. 5, 1985 |
| 4463613 |
Calibratable turbine wheel gas meter with exchangeable measuring insert |
Aug. 7, 1984 |
| 4448058 |
Respiratory gas analysis instrument having improved volume calibration method and apparatus |
May. 15, 1984 |
| 4419898 |
Method and apparatus for determining the mass flow of a fluid |
Dec. 13, 1983 |
| 4091653 |
Turbine meter in-line checking apparatus and method |
May. 30, 1978 |
|
|
|
