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Class Information
Number: 73/1.73
Name: Measuring and testing > Instrument proving or calibrating > Liquid level or volume measuring apparatus
Description: Subject matter wherein either (a) the apparatus for proving or calibrating the device or (b) the device being proven or calibrated measures either (1) a height of liquid contained in a body or (2) an amount of material contained in a body.


Sub-classes under this class:

Class Number Class Name Patents
73/1.74 Volumetric dispenser (e.g., pipette) 54


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7618593 Reducing agent container having novel structure Nov. 17, 2009
7611478 Continuous volume detection for a reservoir in a fluid circuit of a medical system Nov. 3, 2009
7597854 Pipette guide Oct. 6, 2009
7578069 Automated robotic measuring system Aug. 25, 2009
7544328 Structure for reducing agent container Jun. 9, 2009
7469570 Calibrating system for measuring sprayed materials Dec. 30, 2008
7458246 Method for functionally testing a filling level sensor Dec. 2, 2008
7451773 Dishwasher Nov. 18, 2008
7441341 Automated robotic measuring system Oct. 28, 2008
7441569 Will call wireless tank level monitoring system Oct. 28, 2008
7439867 Environmental sensor network Oct. 21, 2008
7408501 Method employing the radar principle for measuring the fill level of a medium in a container Aug. 5, 2008
7364563 Continuous volume detection for a flexible venous reservoir in a cardiopulmonary bypass circuit Apr. 29, 2008
7356427 Methods and systems for estimating a nominal height or quantity of a fluid in a mixing tank while reducing noise Apr. 8, 2008
7334451 Level meter threshold detection system Feb. 26, 2008
7319401 Radar level gauge system with variable alarm limits Jan. 15, 2008
7299675 Fuel level sensor calibration Nov. 27, 2007
7285423 Penetrable pressure proof sealing for a container Oct. 23, 2007
7276023 Device for checking endoscope channels Oct. 2, 2007
7277020 Apparatus for indicating the state of a characteristic of a constituent in a container Oct. 2, 2007
7260977 Self-diagnosis of a vibrating level gauge Aug. 28, 2007
7251996 Liquid detecting piezoelectric device, liquid container and mounting module member Aug. 7, 2007
7225670 Mounting structure, module, and liquid container Jun. 5, 2007
7224283 Enclosure for a wastewater fluid level sensing and control system May. 29, 2007
7204960 Apparatus and method for calibration of a dispensing system Apr. 17, 2007
7155319 Closed loop control on liquid delivery system ECP slim cell Dec. 26, 2006
7146845 Method for operating tests of vibration level switch sensors and corresponding vibration level switch Dec. 12, 2006
7114368 Apparatus and method for verifying the volume of liquid dispensed by a liquid-dispensing mechanism Oct. 3, 2006
7100800 Gas dosing apparatus and a method of dosing pre-set quantities of gas Sep. 5, 2006
7079037 System and method for indicating liquid level condition Jul. 18, 2006
7059167 Method and arrangement for indirectly determining fill characteristics of a fluid tank on a marine vessel Jun. 13, 2006
7021117 Method for diagnosing a noisy failure of a fuel level sensor in a vehicle Apr. 4, 2006
7013804 Method of ink level determination for multiple ink chambers Mar. 21, 2006
7013703 System and method of evaluating or calibrating a bubble detector Mar. 21, 2006
6981399 Method for detecting a differential pressure Jan. 3, 2006
6975236 Wireless soil moisture meter network Dec. 13, 2005
6968739 Gauge and method for indicating a level of a liquid in a tank Nov. 29, 2005
6904783 System and method for detecting faulty fuel tank level sensor Jun. 14, 2005
6892572 Method and apparatus for measuring the quantity of a liquid in a vehicle container May. 17, 2005
6817241 Point level device with automatic threshold setting Nov. 16, 2004
6819250 Out-of-liquid sensor, and liquid supply device using same Nov. 16, 2004
6814810 Apparatus for calibrating a dispensing system Nov. 9, 2004
6745626 Liquid detecting piezoelectric device, liquid container and mounting module member Jun. 8, 2004
6679115 Apparatus for determining the filling level of a product in a container Jan. 20, 2004
6675646 Liquid-quantity monitoring apparatus and liquid-consuming apparatus with the same Jan. 13, 2004
6645824 Combined optical profilometry and projection microscopy of integrated circuit structures Nov. 11, 2003
6615656 Method and apparatus for measuring the quantity of fuel in a vehicle fuel tank subject to external forces Sep. 9, 2003
6612173 Stepped plunger for use with an ultrasonic sensor Sep. 2, 2003
6606906 Digital conversion adapter for magnetically coupled level meters Aug. 19, 2003
6600962 Sensor controller Jul. 29, 2003

1 2 3


 
 
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