| |
 |
|
Class Information
Number: 73/1.27
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
Description: Subject matter wherein either (a) the apparatus for proving or calibrating the device or (b) the device being proven or calibrated comprises either (1) a motor operated by water, steam, or air directed against cups, blades, or vanes on the rim of a wheel (i.e., turbine), (2) an instrument that measures fluent material passing through it via the use of rotary driven indicating members (i.e., geared meter), (3) a means having a property which changes in response to regularly occurring stimuli (i.e., pulse activated), or (4) a meter for totaling a parameter related to flow (i.e., counter).
Sub-classes under this class:
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 |
| 7363182 |
System and method for mass flow detection device calibration |
Apr. 22, 2008 |
| 7249486 |
Method for monitoring a sensor |
Jul. 31, 2007 |
| 7212953 |
Portable diagnostic analysis of gas meter and electronic corrector |
May. 1, 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 |
| 6823275 |
Fault tolerant apparatus and method for determining a revolution rate of a gear |
Nov. 23, 2004 |
| 6711513 |
Fault tolerant apparatus and method for determining a revolution rate of a gear |
Mar. 23, 2004 |
| 6505134 |
Method of calibrating a single meter blending fuel dispensing system |
Jan. 7, 2003 |
| 6474132 |
Precalibrated flow meter |
Nov. 5, 2002 |
| 6367306 |
Compensating method and device for instrumental error in positive displacement type flowmeter |
Apr. 9, 2002 |
| 6092410 |
Meter calibration and drift compensation device |
Jul. 25, 2000 |
| 6082169 |
Method for detecting water meter malfunction, calculating the duration thereof, and device for implementing same |
Jul. 4, 2000 |
| 6034501 |
Device for driving stepper motor type measuring instrument |
Mar. 7, 2000 |
| 5748504 |
Calibration method for use with ultrasonic flowmeters |
May. 5, 1998 |
| 5455781 |
Apparatus and method for determining the measurement accuracy of electronic gas meters |
Oct. 3, 1995 |
| 5111683 |
Calibration method for a pulse response flowmeter |
May. 12, 1992 |
| 4953386 |
Method and apparatus for proving electronic gas meters |
Sep. 4, 1990 |
| 4926678 |
Method and apparatus for proving electronic gas meters at low flow rates |
May. 22, 1990 |
| 4918973 |
Apparatus and method for calibrating a measuring device |
Apr. 24, 1990 |
| 4881186 |
Apparatus for measuring injection speed of die cast machines |
Nov. 14, 1989 |
| 4831866 |
Automatic meter proving and calibration system |
May. 23, 1989 |
| 4762012 |
Universal upstream-downstream flowmeter tester |
Aug. 9, 1988 |
| 4692933 |
Electro-mechanical integrator |
Sep. 8, 1987 |
| 4509373 |
Calibration circuit for ultrasonic flowmeter |
Apr. 9, 1985 |
| 4502319 |
Multi-tester for water treatment metering apparatus |
Mar. 5, 1985 |
| 4501972 |
Float detection system |
Feb. 26, 1985 |
| 4467657 |
Device for measuring the amount of flow and/or the speed of flow of a medium |
Aug. 28, 1984 |
| 4389886 |
Calibrating unit |
Jun. 28, 1983 |
| 4346705 |
Metering apparatus having rate compensation circuit |
Aug. 31, 1982 |
| 4331262 |
Calibratable automatic fluid dispenser |
May. 25, 1982 |
| 4120032 |
Methods and systems for use with pulse train circuitry |
Oct. 10, 1978 |
| 4073304 |
System for calibrating a pump |
Feb. 14, 1978 |
| 3940971 |
System for testing flow meters |
Mar. 2, 1976 |
| 3937048 |
Methods and apparatus for proving gas meters |
Feb. 10, 1976 |
| 3933038 |
Volumetric determination of contaminated liquid or gaseous media |
Jan. 20, 1976 |
|
|
|
