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Class Information
Number: 174/11R
Name: Electricity: conductors and insulators > With fluids or vacuum > With fluid-condition responsive and/or indicating means
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7210497 |
Pressure relief device with increased flow rate |
May. 1, 2007 |
| 7122075 |
Device for reducing the gas and water contamination of transformer oil filling |
Oct. 17, 2006 |
| 6956166 |
Composite electronic component |
Oct. 18, 2005 |
| 6828502 |
Fluid release system for secondary conduits extending between a transformer housing and a meter box and method of use |
Dec. 7, 2004 |
| 6806416 |
Maintenance of fluidic dielectrics in RF devices |
Oct. 19, 2004 |
| 6700061 |
Composite electronic component |
Mar. 2, 2004 |
| 6522229 |
Transformer |
Feb. 18, 2003 |
| 6497248 |
Pressure relief device with one piece gasket |
Dec. 24, 2002 |
| 6355879 |
Flow-through cable |
Mar. 12, 2002 |
| 6294727 |
Takeout anchor and protective cover |
Sep. 25, 2001 |
| 6144209 |
Fluid detection cable |
Nov. 7, 2000 |
| 6063997 |
Gas insulated electric apparatus |
May. 16, 2000 |
| 5969618 |
Failure sensor hose |
Oct. 19, 1999 |
| 5918267 |
Leak detection |
Jun. 29, 1999 |
| 5661405 |
Elongate sensor having polymeric electrodes filled with conductive particles and having braided sleeves |
Aug. 26, 1997 |
| 5588086 |
Fiber optic hermetic bulkhead penetrator feedthrough module and method of fabricating same |
Dec. 24, 1996 |
| 5574377 |
Device for the detection and localization of organic solvent leakages and fabrication process |
Nov. 12, 1996 |
| 5410255 |
Method and apparatus for detecting and distinguishing leaks using reflectometry and conductivity tests |
Apr. 25, 1995 |
| 5382908 |
Conductivity or capacity cell and a method for producing the same and a probe including such a cell and a method for measuring of relative humidity with such a probe |
Jan. 17, 1995 |
| 5382909 |
Method for detecting and obtaining information about changes in variables |
Jan. 17, 1995 |
| 5378995 |
Low molecular weight organic liquid detection sensor in the shape of a wire and detector using this sensor |
Jan. 3, 1995 |
| 5341128 |
Sensor element for detection of hydrocarbons |
Aug. 23, 1994 |
| 5319155 |
Heat and fireproof duct for electrical and communication wires and the like |
Jun. 7, 1994 |
| 5313823 |
Electrical cable leak detection system |
May. 24, 1994 |
| 5256976 |
Power apparatus and method of location of a fault in a power apparatus on the basis of attenuation coefficients of electromagnetic coefficients of fault generated electromagnetic waves |
Oct. 26, 1993 |
| 5235286 |
Method for detecting and obtaining information about changers in variables |
Aug. 10, 1993 |
| 5191991 |
Housings with safety pressure relief means thereon |
Mar. 9, 1993 |
| 5190069 |
Apparatus and method for detecting leaks |
Mar. 2, 1993 |
| 5172730 |
Two-wall leakage detection system for a pipe |
Dec. 22, 1992 |
| 5159276 |
Capacitance measuring circuit and method for liquid leak detection by measuring charging time |
Oct. 27, 1992 |
| 5146105 |
Internal pressure explosion-proof system |
Sep. 8, 1992 |
| 5140847 |
Cable for detecting location of liquids |
Aug. 25, 1992 |
| 5109202 |
Conductive resin structure for connecting metal conductors |
Apr. 28, 1992 |
| 5084679 |
Leakage detector using slotted insulated conductors |
Jan. 28, 1992 |
| 5017908 |
Solvent responsive signal-carrying device |
May. 21, 1991 |
| 5015958 |
Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors |
May. 14, 1991 |
| 4972179 |
Liquid leakage detection apparatus including wheatstone bridge |
Nov. 20, 1990 |
| 4963693 |
Purge enclosure for electrical equipment in hazardous location |
Oct. 16, 1990 |
| 4931741 |
Branched sensor system |
Jun. 5, 1990 |
| 4926129 |
Sensor assembly for detecting multiple events and distinguishing between them |
May. 15, 1990 |
| 4918977 |
Liquid leakage detector line |
Apr. 24, 1990 |
| 4910998 |
Fluid detection system and method having a coaxial cable with solid, stranded dielectric elements |
Mar. 27, 1990 |
| 4896527 |
Solvent leak detecting sensor |
Jan. 30, 1990 |
| 4877923 |
Sensors for detecting and locating liquid leaks |
Oct. 31, 1989 |
| 4862146 |
Detection apparatus |
Aug. 29, 1989 |
| 4862088 |
Remote locating of a structure and remote measurement of conditions therein |
Aug. 29, 1989 |
| 4850672 |
Strain compensated fiber optic cable |
Jul. 25, 1989 |
| 4843327 |
Branched sensor system |
Jun. 27, 1989 |
| 4843305 |
Spacer-separated liquid leakage sensor |
Jun. 27, 1989 |
| 4843187 |
Gasket assembly and electrical power transformer including the same |
Jun. 27, 1989 |
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