Matches 1 - 50 out of 421 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
7210497 Pressure relief device with increased flow rate  
A pressure relief device for electrical equipment housing, includes a valve body having a pedestal that projects above a mounting flange and a table on the pedestal that supports a two-stage valve...
7122075 Device for reducing the gas and water contamination of transformer oil filling  
The device for reducing the gas and water contamination of transformer oil filling includes a main tank and a conservator provided with a sludge discharge fitting, being joined by an upper...
6956166 Composite electronic component  
A composite electronic component that prevents the electrical connection between a conductive case member of the composite electronic component, which performs physical shielding against a physical...
6828502 Fluid release system for secondary conduits extending between a transformer housing and a meter box and method of use  
A fluid release system for removing water within secondary conduits which contain electrical cables extending between a transformer and an electrical meter. The system includes a release valve...
6806416 Maintenance of fluidic dielectrics in RF devices  
Method for preventing degradation of a fluid dielectric ( 106 ) in an RF device ( 100 ). The method can include the steps forming a substrate ( 102 ) of the RF device ( 100 ) from a low temperature...
6700061 Composite electronic component  
A composite electronic component that prevents the electrical connection between a conductive case member of the composite electronic component, which performs physical shielding against a physical...
6522229 Transformer  
The invention relates to a transformer tank generally shaped like a rectangular prism and filled with insulating liquid and assembled mainly by welding. The tank comprises a detachably fastened...
6497248 Pressure relief device with one piece gasket  
Disclosed is a pressure relief valve for attachment to a closed vessel having an opening to vent gas and liquids from the housing should the internal housing pressure rise to unacceptable levels....
6355879 Flow-through cable  
A flow-through cable for transmitting information ( 20 ) is provided. The cable includes a jacket ( 22 ) having a length and an information conducting core ( 26 ) coaxially received within the...
6294727 Takeout anchor and protective cover  
A three part enclosure system protects a sensor package and its connection to a main seismic cable. The enclosure system further anchors the sensor package to the cable. The enclosure system...
6144209 Fluid detection cable  
An elongated fluid detection cable is described for use in detecting the presence of fluid (e.g. water) in areas where fluid is not desired. The cable includes a non-conductive base and at least...
6063997 Gas insulated electric apparatus  
In a gas insulated electric apparatus having gas sections filled with insulating gas, a locating device determines a position of a gas section in which an insulation abnormality is detected, on the...
5969618 Failure sensor hose  
A hose capable of carrying current to an indicator which provides external warning of imminent failure, or leak, due to wear occurring within the hose. The hose consists of an internal (primary)...
5918267 Leak detection  
A system for detecting leaks from buried pipes which transport fluids other than water. The system includes a pipe for transporting the fluid, a fluid-wicking member which lies beneath the pipe, is...
5661405 Elongate sensor having polymeric electrodes filled with conductive particles and having braided sleeves  
An elongate, flexible sensor for sensing an electrically conductive liquid, such as water, has two flexible electrodes extending along the sensor and two flexible sleeves extending therealong and...
5588086 Fiber optic hermetic bulkhead penetrator feedthrough module and method of fabricating same  
A hermetically sealed fiber optic feedthrough module which comprises a metal or other rigid material connector feedthrough or sleeve feedthrough with a single fiber optic member or with a multitude...
5574377 Device for the detection and localization of organic solvent leakages and fabrication process  
A device for detection of the presence of organic solvents, and a process for the fabrication of the device. This device is particularly useful as a device for the detection and localization of...
5410255 Method and apparatus for detecting and distinguishing leaks using reflectometry and conductivity tests  
A method and apparatus for detecting and locating fluid leaks, particularly liquid leaks, and determining whether the leaking liquid being detected is a non-conductive liquid such as a hydrocarbon...
5382909 Method for detecting and obtaining information about changes in variables  
Detection of liquid leaks and other changes in variables is disclosed. The event causes two elongate conductors to become electrically connected at a location which is determined by the event, thus...
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  
Cell (19) for measuring moisture content of a material, comprising a sock (13) which is comprised of a plurality of braided threads, each thread consisting of a plurality of fibers comprised of an...
5378995 Low molecular weight organic liquid detection sensor in the shape of a wire and detector using this sensor  
A low molecular weight organic liquid detection sensor which is a wire body formed by coating a core material with a conductive layer made of a substantially non-crosslinked material having a Shore...
5341128 Sensor element for detection of hydrocarbons  
A sensor for detecting the presence of hydrocarbons and hydrocarbon containing fluids. It is formed of a first conductor which is formed of a metal wire or metal foil covered by an insulative...
5319155 Heat and fireproof duct for electrical and communication wires and the like  
The duct comprises an inner tube in which the wires are disposed, and this inner duct is placed inside an outer tube so as to provide a continuous inner space between the tubes, which completely...
5313823 Electrical cable leak detection system  
A leak detection cable for detecting aqueous based liquids that contain a surfactant is composed of an insulated wire conductor (1 and 2) wrapped with a water resistant yarn (3) and a braided...
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  
A power apparatus has a network formed by a plurality of interconnected components being, e.g., one or more high voltage conductors in a casing of a metal filled with an insulating gas. Detectors...
5235286 Method for detecting and obtaining information about changers in variables  
An elongate sensor for detecting and locating presence of a liquid, e.g. water or a hydrocarbon. The sensor includes first and second elongate members which are spaced apart from each other and...
5191991 Housings with safety pressure relief means thereon  
A fastening which allows a bolted-on cap to part from a body when excessive pressures develop in a cavity in the body, comprises a nut and bolt arrangement, and includes a weakened tubular spacer...
5190069 Apparatus and method for detecting leaks  
A leak detection apparatus is shown for monitoring leakage from household water systems. Upon detection of a leak, the water supply valve is automatically shut off. A pair of spaced apart wires are...
5172730 Two-wall leakage detection system for a pipe  
An elongated fluid detection device, together with a body of absorbent material, is located between the inner surface of a pipe and an impervious liner spaced from the inner surface thereof, the...
5159276 Capacitance measuring circuit and method for liquid leak detection by measuring charging time  
A leak detection system and method are disclosed. The capacitance of a leak detection cable is changed by a leaking liquid. A capacitance measuring circuit detects changes in the capacitance of the...
5146105 Internal pressure explosion-proof system  
An internal pressure explosion-proof system by which an electric motor or the like is not rendered operative until after gas in an airtight vessel is replaced with certainty by protective gas. The...
5140847 Cable for detecting location of liquids  
A cable for detecting location of liquids comprises a core element sensitive to pulling or bending, a first sheathing of a material which swells in the liquid to be detected, and a sheathing...
5109202 Conductive resin structure for connecting metal conductors  
A structure for connecting metal conductors in an oil-leak detector having the conductors covered with porous polytetrafluoroethylene (PTFE) and the metal conductors connected by a band of...
5084679 Leakage detector using slotted insulated conductors  
A detector for use in a detecting device determines the occurrence of a change in the conductivity of a medium includes electrical conductors. The respective electrically insulated conductors are...
5017908 Solvent responsive signal-carrying device  
A signal-carrying member responsive to the presence of a solvent and suitable for use in a security cable or a liquid leakage detector, comprises a conductive ink 20, consisting of a particulate...
5015958 Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors  
Detection of events, e.g. liquid leaks and other changes in varibles. The event causes two conductors to become electrically connected, and thus creating a system in which the connection point can...
4972179 Liquid leakage detection apparatus including wheatstone bridge  
Liquid leakage detection apparatus is provided comprising: (a) a long detecting component wherein there are the following components bundled together: (i) a first conductor having a leading end and...
4963693 Purge enclosure for electrical equipment in hazardous location  
A protective or purge enclosure provides a positive atmosphere around an operating device such as a hand-held computer or calculator contained therein. The protective enclosure has sufficient...
4931741 Branched sensor system  
A detection and location system, e.g. for liquid leaks, comprising a trunk line sensor cable and a plurality of branch line cables at intermediate points of the trunk cable. Each of the cables...
4926129 Sensor assembly for detecting multiple events and distinguishing between them  
A sensing assembly suitable for detecting both a first event which involves the presence of an electrolyte and a second event which does not involve the presence of an electrolyte, and for...
4918977 Liquid leakage detector line  
The present invention relates to a liquid leakage detector line for detecting the leakage, if occurs, of a liquid such as sulfuric acid or strong alkali from a transportion pipe line or a storage...
4910998 Fluid detection system and method having a coaxial cable with solid, stranded dielectric elements  
A fluid detection system includes a cable which is capable of being dried easily after coming into contact with the fluid being detected and displays a measurable change in characteristic impedance...
4896527 Solvent leak detecting sensor  
A solvent leak detecting sensor is provided comprising: (a) a first electrical conductor and a second electrical conductor installed on an electrically insulating substrate in the form of a...
4877923 Sensors for detecting and locating liquid leaks  
A sensor cable for detecting and locating liquid chemicals, especially hydrocarbons, and/or water leaks without interruption of the system, wherein two or three conductors and appropriate...
4862146 Detection apparatus  
An apparatus for detecting the occurrence of an event, e.g. the presence of a liquid leak. The apparatus includes an elongate flexible core consisting of elongate elements which are twisted...
4862088 Remote locating of a structure and remote measurement of conditions therein  
Remote sensing of conditions in telecommunications splice case, such as pressure or humidity. The splice case may contain a transducer which alters a resonant frequency of a circuit associated with...
4850672 Strain compensated fiber optic cable  
A strain compensated fiber optic cable composed of a hollow central member made from an elastic material capable of being physically enlarged, such enlargement capable of being at least partially...
4843327 Branched sensor system  
A detection and location system, e.g. liquid leaks, comprising a trunk line sensor cable and at least one branch line cable; each of the cables comprise two insulated conductors and two...
4843305 Spacer-separated liquid leakage sensor  
A liquid leakage sensor having spaced apart pairs of insulated conductors on oppositge sides of a strip of insulation and aperture access from one side of the strip to conductors on the other side....
4843187 Gasket assembly and electrical power transformer including the same  
A gasket assembly including a base having a central opening and a circular slot having an undercut portion extending around the central opening, a circular gasket positioned in the circular slot...
Matches 1 - 50 out of 421 1 2 3 4 5 6 7 8 9 >