Matches 301 - 350 out of 443 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
4774622 Connecting apparatus for lightning arresters for overhead transmission lines  
A connecting apparatus includes a connecting conductor for connecting a supporting insulator supporting an overhead transmission line and a lightning arrester through a disconnecting member. The...
4766513 High voltage apparatus  
A high-voltage apparatus having a casing (1) filled with an insulating medium, an active part (6) connected to high voltage in the casing, and a pressure-relief valve (2) closing off the casing...
4760486 Protection device against flashover in a transmitter circuit  
A device for protecting a circuit against flashovers due to an overvoltage, which device includes first and second controllable arc discharge members connected in series with one another and in...
4755904 Lightning protection system for conductive composite material structure  
A composite material skin (42) is attached to a composite material support structure (26) by a plurality of metal lock bolts (64). A foraminous metal material (44) is embedded in the matrix of the...
4752854 Method and apparatus for protection against lightning  
A method and apparatus is provided for protecting against lightning. An atmospheric potential tapping member is disposed for this purpose in the atmospheric field prone to lightning to collect a...
4739439 Overvoltage arrester  
An overvoltage arrester for handling high surge currents including a pair of electrodes one of which includes a blind bore into which the second electrode projects, thereby providing at least one...
4734823 Fault current interrupter and explosive disconnector for surge arrester  
A fault current interrupting disconnector, or fault disconnector, for a surge arrester operates to separate an electrical lead or ground lead wire from a damaged arrester and to interrupt the...
4701725 Radio frequency signal coupler  
A radio frequency signal coupler includes first and second conductors formed on an insulating body for coupling signals between respective input and output couplings. A series resonant circuit is...
4700258 Lightning arrester system for underground loop distribution circuit  
A lightening arrestor system (30) for a pad mounted distribution transformer (18') incorporated in an underground loop distribution circuit has a lighting arrester (32) secured to the transformer...
4685021 Fault current diverter  
A fault current diverter for use with high voltage electrical equipment is operative to divert fault current to ground by establishing a non-arcing low impedance current path to ground. The...
4679114 Method and equipment for lightning protection through electric potential neutralization  
An equipment for a preventive lightning protection of at least partly neutralizing the electric potentials of the atmosphere's charges. This is accomplished through the application of a...
4669027 Power line surge protector with internal shielding  
To protect electronic apparatus against voltage peaks, in particular those generated by nuclear electromagnetic pulses (NEMP), several lowpass filters with voltage-limiting elements are interposed...
4665460 Device for protecting overhead electroconducting lines against lightning  
A lightning protector for overhead electric lines comprises at least one of the following elements: a spark-arrester (111,112) a ground lead and a device for the connection of electric cables....
4663692 Electrical surge arrester and disconnector  
A disconnector for lightning arresters is provided that incorporates a gas cylinder with a dielectric gas such as carbon dioxide which will be released upon an excess current and result in the...
4656555 Filament wrapped electrical assemblies and method of making same  
An electrical assembly comprising a plurality of electrical components aligned in a row under an axial load and wrapped with filament windings. The wrapped components are then preferably enclosed...
4652694 Intermittent pulsed corona discharge lightning rod  
The invention relates to a corona discharge lightning rod comprising a tip which is isolated from the ground and having a base which is connected via discharge means to the ground, said lightning...
4649457 Surge protection device  
A surge protection device for protecting an electric power system from excessive voltage surges, including those caused by direct lightning strikes. Metal oxide varistors are wired between each...
4638285 Surge suppressing resistor for a disconnect switch  
A surge suppressing resistor for a disconnect switch is provided which has its interior and exterior surfaces in fluid communication with the atmosphere to achieve a greater cooling effect. A glass...
4635160 Tri-plane transient voltage suppression device assembly  
This Transient Voltage Suppression Device Assemblies (TVSDA) adequately pides for the parasitic inductance of the voltage suppression device (VSD). This TVSDA provides for one connector to be...
4628399 Anti-overvoltage protector  
A pair of main electrodes are hermetically mounted, by fusion of a low melting point metal, onto both end openings of an insulative cylindrical member, respectively. Main electric discharge...
4628398 Surge voltage protection arrangements  
A surge voltage protection arrangement for a load 10 connected to an A.C. supply 8 comprising a gas-filled excess voltage arrester 11 connected in series with a capacitor 12 across the load 10. The...
4628396 High voltage disconnect/reconnect switching device  
The apparatus comprises a high voltage disconnect and load isolation switch. During normal operation commercial power is conducted through a pair of contacts "a" and "b" to a load. When a high...
4625256 Overvoltage protector for a device having two parts movable relatively to each other  
An overvoltage protector in an apparatus having two moving parts (1,5). The parts are connected via a bearing (2,3,4), one part being stationary in relation to a substructure (13) at an electrical...
4586105 High voltage protection device with a tape covered spark gap  
To protect a load circuit on a printed circuit board, a pair of input circuit conductors are placed close together to form a spark gap. A load limiting resistor is placed in one of the conductors....
4583702 Lightning protection for aircraft radomes  
A conductive strip for attachment to an aircraft radome to provide protection against the effects of a lightning strike to the radome, wherein the conductive strip has a series of holes formed in it.
4573115 Supervisory control system for remotely monitoring and controlling at least one operational device  
Disclosed is a supervisory control system for remotely monitoring and controlling at least one operational device. The system includes at least one microremote in association with an operational...
4547831 Surge arrester  
A surge arrester includes an elongated insulating housing comprising one or more stacks of electrically series-connected metal oxide varistor blocks arranged between a top terminal and a bottom...
4538200 Power connection apparatus having integrated surge arrestor  
A power cable for a submersible motor has a releasable plug-in connector for releasable attachment to the motor. An oil-filled motor has solid conductors to the motor connector part and the...
4535253 Mobile electrical apparatus  
A mobile electrical apparatus comprises a main electrical apparatus and three lightning arresters mounted on the vehicle. The electrical devices are so arranged that they are moved to the retracted...
4518816 Lightning conductor with piezoelectric device for initiating the corona effect  
The present invention relates to a lightning conductor with a piezoelectric device for initiating the corona effect. It comprises a metal rod terminated by a tip and connected to the ground by an...
4502089 Lightning arrester  
A lightning arrester comprises a plurality of column blocks disposed in parallel each of which has groups of a number of stacked nonlinear resistance elements and spacers interposed between the...
4494165 Filament composite structures providing lightning strike and electromagnetic protection  
In a laminated structure, such as a structural component of an aerospace vehicle or the like, which is fabricated of layers of filament composite material, means is provided for protection against...
4494163 Electric switching surge protection  
An electric switching surge protector comprising a non-linear, voltage and frequency sensitive RC network connectable between earth and a phase of a switch controlled, AC electric load circuit. The...
4486805 Lightning arrester with improved spark gap structure  
An improved arc gap structure for a lightning arrester comprises first and second annular electrodes concentrically arranged relative to one another. The first electrode has a generally cylindrical...
4463404 Surge voltage arrester with shielding bodies enclosing a column of arrester elements  
A surge voltage arrester, with a column of arrester elements arranged in a housing and several shielding bodies enclosing the column, includes voltage controlling elements arranged between the...
4447847 Portable lightning rod  
A portable lightning rod includes an upper electrode disposed at its uppermost end for receiving an electric charge from lightning, a lower electrode disposed at its lower end for physical and...
4429341 Lightning protection for external surface composite material of an aircraft  
An ordinary lightning-accessible surface of an aircraft component consisting of a composite material such as a graphite epoxy composite includes one or more layers of dielectric material applied...
4427898 Mobile power station apparatus  
A mobile power station apparatus, in which a plurality of lightning arresters are disposed adjacent to each other together with electric equipment on a vehicle, and which is provided with rotary...
4404614 Surge arrester having a non-fragmenting outer housing  
A surge arrester including an outer elongated housing and an inner liner is disclosed herein. The outer housing is constructed of a material which will not break as a result of internal electrical...
4398057 Arc protection arrangement for covered overhead power distribution lines  
A covered distribution wire is provided with a clamp device having sufficient mass to provide conductor protection against damage from fault current arcs over a section of the conductor where the...
4396794 Arc protection clamp and arrangement for covered overhead power distribution lines  
A covered distribution wire is provided with a clamp device having sufficient mass to provide conductor protection against damage from fault current arcs over a section of the conductor where the...
4396968 Fused distribution power system with clamp device for preventing arc damage to insulated distribution conductors  
An insulated distribution conductor separated from the substation by one or more fuses is protected from arc damage by a clamp device having sufficient mass to absorb the arc energy and thereby...
4396970 Overvoltage surge arrester with predetermined creepage path  
An overvoltage surge arrester which has a reduced turn on time and is suitable for use at low voltage levels to protect electronic equipment, such as telephone repeaters and the like; this...
4380038 Overvoltage protective module  
The overvoltage protective module comprises a two-terminal overvoltage protective element positioned in a recess of an insulating body. Two conducting strips are held in the bottom of the recess...
4369480 Overvoltage arrester including a column of arrester elements and shielding therefor  
Disclosed is an overvoltage arrester in which the active part comprises a number of shielding elements with arrester elements fastened thereto in the interior thereof. The shielding elements along...
4363069 Overvoltage arrester with arrester elements in a frame comprising columns  
Disclosed are overvoltage arresters comprising a columnar arrangement of arrester elements, insulating elements and conducting elements. The elements are arranged to provide a current flow in at...
4355345 High current draining capacity micro-lightning arrester  
A lightning arrester including a metallic enclosure with an opening, a first electrode of electrically conducting metal traversing the enclosure opening and having a first discharge surface within...
4352142 Composite aircraft structure having lightning protection  
A lightning protection system for advanced composite aircraft structures consisting of a sandwich structure including two layers of aluminum foil separated by a layer of dielectric material. The...
4352140 Surge arrester  
In a surge arrester comprising a stack of series-connected cylindrical ZnO-varistors in an insulating housing, the envelope surface of each varistor is provided with an insulating protection means,...
4352139 Flexible connector for H.V. arrester  
A gapless arrestor assembly for a high voltage bushing including an insulating elastomeric housing having a bore formed in one portion thereof and a receptacle formed in another portion thereof and...
Matches 301 - 350 out of 443 < 1 2 3 4 5 6 7 8 9 >