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7339486 |
Insertion type fuse with breakage indication
An insertion type fuse with breakage indication comprises a seat having a long receiving chamber for receiving a metal fuse; an rectangular bi-directional SMD form LED set being located on the...
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7320171 |
Fuse component
A fuse component ( 1 ) includes a hollow body ( 2 ) which is formed from a tubular wall that encloses an inner area ( 5 ) and which has two open faces that are situated opposite one another. The...
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7222561 |
Pyromechanical cutting element
A pyromechanical cutting element has a housing ( 2 ) in which an electrical conductor ( 3 ) is arranged, a cutting plunger ( 5 ) with a cutting tool ( 8 ) to cut through the electrical conductor (...
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7109877 |
Fault monitoring apparatus and method
A fault condition monitoring apparatus for use with a fuse cutout includes a housing operable to be supported by the fuse cutout. The housing has first and second contacts operable to make...
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6806806 |
Polymer fuse and filter apparatus
A fuse and filter arrangement having a polymer fuse apparatus that provides bypass fuse protection. A polymer bypass fuse includes of an electrical conductor wherein a portion of the conductor is...
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6661633 |
Protective element
The protective element 20 A includes a first PTC element 1 , as well as a low-melting-point metal member 2 , a heat-generating member 3 and a second PTC element. A the PTC material 1 ′...
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6657531 |
Fuse circuit using capacitors as fuse elements
A fuse circuit includes electrical fuse elements which are commonly connected at one-side ends, a voltage generating section and a readout section. The voltage generating section is configured to...
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6507264 |
Integral fuse for use in semiconductor packages
A fuse element partially encapsulated in an arc-suppression material which can, in turn, be integrated along with a semiconductor device into a semiconductor package to provide overcurrent...
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5939968 |
Electrical apparatus for overcurrent protection of electrical circuits
An electrical apparatus comprising first and second PTC elements composed of a polymer composition with conductive particles dispersed therein, an insulating body, and first and second conductive...
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5936506 |
Delay mechanism for retarding relative movement between two members
A delay mechanism for retarding relative movement between two members has particular application in a hinge assembly for a dropout fuseholder. In one embodiment, a pin member rotatably connecting...
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5903208 |
Stitched core fuse
A fuse includes a solid silicone rod that has a fuse element stitched repeatedly through the rod so that the stitches extend longitudinally along the length of the rod. The stitched silicone rod is...
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5880664 |
High-voltage high-breaking-capacity fuse
A quick-break fuse including at least one fuse link formed as a fusible eent, a mechanical actuator operatively connected with the fuse link for disconnecting the same, an energy accumulator for...
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5805046 |
Current responsive latching apparatus for disconnecting and isolating an electrical device
A current responsive latching apparatus may be employed in a dropout fuseholder or other electrical component for retaining the component in a current-carrying position and disconnecting and...
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5673014 |
General-purpose converter fuse
In known methods heretofore, one could generally distinguish with respect to design and tripping characteristic between the LVHBC fuse (low-voltage high-breaking-capacity fuse), which protects...
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5670926 |
High-voltage fuse having a core of bound silica sand about which fusible elements are wound
This high-voltage fuse comprises a tubular housing and a fuse subassembly within the housing with a core in the form of an elongated, cylindrical body primarily of silica sand particles bound...
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5604474 |
Full range current limiting fuse to clear high and low fault currents
An improved high voltage, full range, current limiting fuse with enhanced ability to dear high and low fault currents, even after the fuse has been subjected to a potentially damaging current...
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5559488 |
Current limiting fuse having compact structure
The fuseholder includes a current limiting fuse mounted within a fuse body and a lower contact and hinge assembly. The fuse body has contact assemblies mounted on each end thereof. The lower...
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5457292 |
Load interrupting switch for live front padmounted switchgear
A load interrupter device is provided for live front padmounted high voltage switchgear unit wherein circuit interruption is independent of the speed at which a lineman opens the switch of the...
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5296832 |
Current limiting fuse
A fuse that includes a tubular member made from insulative material, end block portions made from insulative material, a spanner joining together the end block portions, terminals extending through...
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5280261 |
Current limiting fuse
An arc quenching, current limiting fuse utilizing a fuse link having a plurally of bends which cause the fuse link to come in contact or come in close proximity to the inside wall of the fuse body....
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5148140 |
Electrical fuses having improved short-circuit interruptions characteristics
The disclosed electrical fuse has a fuse link in a filling of sand and a binder that imparts high thermal conductivity to the filler. The binder is a shiny coating on the grains of sand extending...
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5109211 |
High voltage fuse
A protective fuse assembly for a current limiting fuse of the type, including a dielectric housing enclosing the fuse, an end cap secured to the lower end of the fuse by a pyrotechnic charge...
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4972169 |
Spiral wound sand fuse
A spiral wound sand fuse has a non-reactive fiber core permitting use of the fuse to interrupt high fault currents in high voltage circuits.
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4972170 |
High speed fuse
The high speed fuse employs stamped end bell and terminals rather than forged or machined parts. A slot for the terminal is punched through the end bell. The terminal is inserted into the slot in...
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4935716 |
Fuse having a ball plug
A high speed fuse 8 having terminals 14 staked to non-electrically conductive end bells 12 with fusible element 30 connected to ridges 44 on terminal 14 by projection welding, and round balls 18...
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4855705 |
Fuse with a solid arc-quenching body made of non-porous rigid ceramic
A high power current-limiting fuse comprises a cylindrical envelope which closely surrounds a metallic fusible element in the form of a wire or ribbon. The cylindrical envelope is made of high...
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4841356 |
Fuses and their manufacture
The disclosed fuse has a tube of insulation, terminals at the ends of the tube, a link connecting the terminals, and a granular filler. At least one end cap is made of sheet metal which has one or...
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4839625 |
Fuse
A fuse comprising a body (20) encapsulating a fuse element (22), said body (20) including a baseplate (16) formed from a material having good thermal conductivity; a pair of elongate terminals (12)...
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4794362 |
Alternating current power circuit and fuse therefor
A fuse for an alternating current power circuit. The fuse comprises an input terminal (4), a first contact (5) electrically connected to the input terminal, an output terminal (9) and a second...
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4742323 |
Fuse for an alternating current power circuit
A fuse for an alternating current power circuit in the medium voltage (3.3 kV to 38 kV) range. The fuse comprises a sealed chamber and a first electrode (41) is mounted within the chamber, the...
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4723117 |
Fuse assembly
A fuse assembly includes a housing having a base, side and end walls and a removable cover. Studs extend through the base and a current limiting fuse is connected between the studs. The cover,...
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4713644 |
Vacuum fuse
A vacuum fuse (10) including a pair of arcing electrodes in the form of parallel, confronting, spaced apart disks (13, 14) supported on the inner ends of aligned contact rods (11, 12). The...
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4703299 |
High current interrupting fuse with arc quenching means
The high current interrupting fuse of the invention includes an envelope free of sand or similar arc quenching material. The envelope preferably has terminal end caps enclosing the ends of the...
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4686502 |
Terminal bracket structure for a current limiting fuse
A current limiting fuse has an electrical subassembly which includes fusible elements that are helically wound about a plurality of support plates which, in turn, are secured on each end to a...
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4636765 |
Fuse with corrugated filament
A fuse (12) comprising a tube of insulating material having an inner (16) and an outer wall surface (18) and forming a fuse housing (14). The fuse includes a pair of conductive fuse terminals (24,...
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4635022 |
Fuse cut-out cartridge
A fuse cartridge for example of the cylindrical type comprising an insulating cylindrical body ending in two conducting end pieces and a fuse element connected electrically to the end pieces,...
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4630022 |
Electric fuse for high voltage circuit
An electric fuse for high voltage circuit comprises an insulative tubular casing closed at both ends with metal caps and has an insulative cylindrical member within said tubular casing disposed...
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4628294 |
End cap assembly for a fluid resistant electrical device
An end cap assembly for a fluid resistant electrical device includes a solderable insulating tube end cap and an insert having a solderable cylindrical body portion positioned within a tubular...
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4626817 |
Current limiting fuse with less inverse time-current characteristic
A current limiting fuse with less-inverse time-current characteristics characterized by a tubular housing having electrical terminals at each end, a fusible structure in the housing and...
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4622533 |
Self-recovery type current limiting element
A self-recovery type current limiting element for suppressing overcurrent conditions and capable of recovering so as to be operated under normal current conditions including two identical element...
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4544908 |
Fuse with electro-negative gas interrupting means
There is provided by this invention a current limiting fuse having a fuse element wound about support means consisting of a non-stoichiometric oxide core that produces an electro-negative gas when...
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4538133 |
Passively detonated explosively-assisted fuse
An explosively-assisted fuse is passively triggered (without electronics) by means of an auxiliary fuse in series with the main conductor. The auxiliary fuse provides a detonating voltage across a...
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4536735 |
Current limiting high voltage fuse assembly
The invention relates to an assembly for a current limiting high voltage fuse, comprising a preferably tubular support body (1), consisting of quartz glass, and fusible conductors (2) attached over...
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4533893 |
Monolithic fuse for rotating equipment
There is provided a current limiting fuse having a uniform and supported element with arc voltage controlling and shaping capabilities that can withstand high mechanical and electrical stress.
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4528536 |
High voltage fuse with controlled arc voltage
There is provided a current limiting fuse having an electrically parallel connected non-linear resistor element for limiting and shaping the arc voltage developed during current interruption.
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4528537 |
High current zinc oxide fuse
There is provided by this invention a current limiting fuse having a zinc oxide core electrically connected in parallel with an array of wire fuse elements capable of shaping and controlling the...
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4506249 |
Fuse element termination for current-limiting fuse
A current-limiting fuse comprises a hollow insulating housing; metallic end cap assemblies at opposite ends of the housing; a multi-ribbed dielectric spider assembly having metallic terminator...
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4490707 |
Explosively-actuated, multi-gap high voltage switch
A high-speed switch usable at high voltage includes a pair of contacts movable apart along a fixed line. When the contacts are normally interconnected, at least one of them contributes to the...
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4486734 |
High voltage electric fuse
This high voltage fuse comprises a pair of spaced terminals and a fusible conductive element connected between the terminals. At spaced locations along the length of the fusible element, there are...
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4388603 |
Current limiting fuse
A current limiting fuse has a main fusible element and an auxiliary fusible element each helically wound over an insulative support member. Each end of the auxiliary element is connected to...
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