| |
 |
|
Class Information
Number: 250/577
Name: Radiant energy > Photocells; circuits and apparatus > Optical or pre-photocell system > Fluent material in optical path > Volume or level
Description: Subject matter including structure associated with the photocell or the placement of the photocell to specifically detect the volume or elevation of a contained fluent material.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7595479 |
Tilt detector and tilt detecting method for the same |
Sep. 29, 2009 |
| 7589340 |
System for detecting a container or contents of the container |
Sep. 15, 2009 |
| 7521703 |
Automatic analyzer |
Apr. 21, 2009 |
| 7499581 |
Vision system to calculate a fluid volume in a container |
Mar. 3, 2009 |
| 7446317 |
Multipass cell for gas analysis using a coherent optical source |
Nov. 4, 2008 |
| 7399985 |
Optical non-contact sensor for detecting material level in a container |
Jul. 15, 2008 |
| 7388222 |
High-temperature optical liquid level sensor |
Jun. 17, 2008 |
| 7323705 |
Liquid level measurement |
Jan. 29, 2008 |
| 7307739 |
System and method for detecting dropping amount of liquid crystal |
Dec. 11, 2007 |
| 7285793 |
Coordinate tracking system, apparatus and method of use |
Oct. 23, 2007 |
| 7259383 |
Optical transducer for detecting liquid level |
Aug. 21, 2007 |
| 7259384 |
Fluid level optical detector with float having opaque and transmissive portions |
Aug. 21, 2007 |
| 7161165 |
Optical transducer for continuously determining liquid level |
Jan. 9, 2007 |
| 7157727 |
Optical detector able to sense the presence of a container and content therein, and container and printer using the same |
Jan. 2, 2007 |
| 7141815 |
Fiber optic-based probe for use in saltwater and similarly conductive media as found in unenclosed natural environments |
Nov. 28, 2006 |
| 7116236 |
Oil tank sight glass monitor |
Oct. 3, 2006 |
| 7115894 |
Method to determine the lubricant filling degree of a fluid dynamic bearing |
Oct. 3, 2006 |
| 7109513 |
Use of wicking means to manage fluids on optical level sensing systems |
Sep. 19, 2006 |
| 7057199 |
Apparatus and method for the measurement of water depth using a controlled receiver |
Jun. 6, 2006 |
| 7055926 |
Liquid container, method for detecting liquid amount in liquid container, and liquid ejection recording apparatus |
Jun. 6, 2006 |
| 7049622 |
Optical position sensor for determining the interface between a clear and an opaque fluid |
May. 23, 2006 |
| 7019322 |
Optical sensor for detecting moisture on a surface |
Mar. 28, 2006 |
| 7012272 |
Method for measuring the filling level of a liquid in a cavity having a sub-mm wide opening |
Mar. 14, 2006 |
| 6949758 |
LCC-based fluid-level detection sensor |
Sep. 27, 2005 |
| 6925871 |
Level sensors |
Aug. 9, 2005 |
| 6921911 |
Method and device for optically determining a filling level in liquid-filled containers |
Jul. 26, 2005 |
| 6868861 |
Level control system for sheet casting process |
Mar. 22, 2005 |
| 6856714 |
Fiber optic point temperature sensor |
Feb. 15, 2005 |
| 6831290 |
Electro-optic fluid quantity measurement system |
Dec. 14, 2004 |
| 6819437 |
Apparatus for handling liquids and a process for operating the device |
Nov. 16, 2004 |
| 6801678 |
Fiber optic level detector |
Oct. 5, 2004 |
| 6795598 |
Liquid-level sensor having multiple solid optical conductors with surface discontinuities |
Sep. 21, 2004 |
| 6729711 |
Ink jet recording apparatus |
May. 4, 2004 |
| 6703635 |
Method and apparatus for measuring the level of liquid using optical fiber strain gauge |
Mar. 9, 2004 |
| 6693285 |
Fluorescent fluid interface position sensor |
Feb. 17, 2004 |
| 6683681 |
Method and apparatus for a downhole refractometer and attenuated reflectance spectrometer |
Jan. 27, 2004 |
| 6668645 |
Optical fuel level sensor |
Dec. 30, 2003 |
| 6670601 |
Fiberoptic fuel gauging system for measuring the level of a liquid in a tank |
Dec. 30, 2003 |
| 6664558 |
Non-prismatic optical liquid level sensing assembly |
Dec. 16, 2003 |
| 6628395 |
Device and method for preliminary testing a neat serum sample in a primary collection tube |
Sep. 30, 2003 |
| 6624435 |
Dual riser/dual capillary viscometer for newtonian and non-newtonian fluids |
Sep. 23, 2003 |
| 6617601 |
Molten metal pouring control system and method |
Sep. 9, 2003 |
| 6586760 |
Water level measuring method and system |
Jul. 1, 2003 |
| 6581461 |
Electro-optic sensor for levelmeter providing output signal with frequency modulated by surface level |
Jun. 24, 2003 |
| 6571644 |
Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products |
Jun. 3, 2003 |
| 6555837 |
Fluoropolymer fluid overfill probe |
Apr. 29, 2003 |
| 6554381 |
System for registration of a fluid level in a receptacle |
Apr. 29, 2003 |
| 6545286 |
Method and apparatus for water level determination |
Apr. 8, 2003 |
| 6538261 |
Wet line fluid removal system with optical sensor |
Mar. 25, 2003 |
| 6526820 |
Rain sensor with bonded chips |
Mar. 4, 2003 |
|
|
|
