Class 337/162 - With diverse characteristics

Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter wherein the plurality of fuse links or elements
No. of patents: 38
Last issue date: 04/15/2008

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Number	Title	Issue Date
7358845	Cable limiter and crab limiter employing replaceable fusible element A cable limiter includes a main body having a cavity. The cavity of the main body is structured to receive a replaceable fusible element. An annunciator is housed by the main body. The annunciator is structured to annunciate status of the replaceable fusible element...	04/15/2008
7348872	Fuse having a plurality of configurable thermal ceilings A fuse having a plurality of configurable thermal ceilings. The fuse includes a housing, a first conductive cap, a second conductive cap, a plurality of conductive elements extending through the housing, and a conductive connector that is electrically coupled to a c...	03/25/2008
7268661	Composite fuse element and methods of making same A composite fuse element includes a network or matrix of conductive material that is in contact and interspersed with arc suppressing materials at a particle level. In such a matrix, the conductive (e.g., metal) network and the arc suppressing material particles pro...	09/11/2007
7102861	Cryogenic current limiting fuse A cryogenic current limiting fuse is disclosed together with a method of manufacturing a cryogenic current limiting fuse, the cryogenic current limiting fuse comprising a first cryogenic composite and a second cryogenic composite wherein at least one of the first an...	09/05/2006
6614340	Full-range high voltage current limiting fuse A Full-Range fuse element assembly includes an insulative former having opposite first and second ends and electrically conducting connectors coupled to ends of the former. A plurality of fuse elements extend between the first connector and the second con...	09/02/2003
6538551	Heat concentrating barrel for wire heater in dual element fuses A dual element fuse includes a first conductive fuse coupler portion and an overload fusing assembly coupled to the first conductive fuse coupler portion. The overload fusing assembly includes a barrel having a flange at one end thereof, a trigger receive...	03/25/2003
6456186	Multi-terminal fuse device A fusing device with an adjustable current rating. The fusing device has a common conductive trace, a plurality of individual conductive traces, and a plurality of fusible links. Each fusible link electrically connects the common conductive trace with a c...	09/24/2002
6211768	Non-venting cutout mounted fuse A non-venting current limiting fuse for mounting in a cutout comprises a high current fuse component and a low current fuse component housed in separate compartments of a housing and connected in series. Interruption of a low current overload results in o...	04/03/2001
5841337	Touch safe fuse module and holder A safety fuse system includes a safety fuse including a fuse casing having a bottom surface and opposing end surfaces at each end of the bottom surface; a fuse element inside the fuse casing; a pair of electrical contacts connected to the fuse element, th...	11/24/1998
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 surge, includes a sand-filled tubular housing with conductive t...	02/18/1997
5239291	Multi-function heater element for dual element ferrule fuses A dual element ferrule fuse includes a short circuit element and an overload element. The overload element includes a heater element which, in addition to carrying heat, is designed to partially enclose the overload element with tabs that provide a weldab...	08/24/1993
4973932	Electrical fuse with coated time delay element A fuse comprises a housing filled with arc-quenching material, terminals at the opposite ends of said housing, and a fuse element assembly in the housing connected between the terminals. The fuse element assembly has at least one short circuit blowing sec...	11/27/1990
4870386	Fuse for use in high-voltage circuit A fuse for use in a high-voltage circuit which has a first fusible element through which most of a current in the fuse flows in a normal state of the fuse and which further breaks into two pieces when overcurrent flows therethrough and further has a secon...	09/26/1989
4692734	Interrupting device with improved current-limiting arrangement An improved current-limiting section is provided for an interrupting device. A main-current-path section of the interrupting device carries substantially all of the normal, load current while only a negligible portion of the current flows through a higher...	09/08/1987
4689596	Current-limiting fuses A low fault current interrupting fuse assembly for a full range current limiting fuse of the type having a high fault current interrupting fuse element connected in series with the low fault current interrupting fuse assembly, said assembly including a fi...	08/25/1987
4638283	Exothermically assisted electric fuse An exothermically assisted electric fuse, having at least one exothermic body disposed in heat transfer relationship with at least a portion of each fusible element of the fuse, a triggering circuit for initiating an exothermic reaction in response to an ...	01/20/1987
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 interconnected between the terminals, the fusible structure comprisin...	12/02/1986
4573032	Inductively compensated trigger circuit for a chemically augmented fuse An inductively compensated trigger conductor for use in a chemically augmented fuse, of the type in which current flow through the fuse generates a magnetic field, employs at least one loop of electrically conductive material to inductively couple the tri...	02/25/1986
4488137	Composite fuse links employing dissimilar fusible elements in a series A fuse link for use in a fast acting current limiting fuse also exhibiting a superior arc quenching capability consisting of a thin copper ribbon placed in series with a thin silver ribbon. The copper section provides a faster heating capability to the fu...	12/11/1984
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 bodies of a material that exothermically reacts when heate...	12/04/1984
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 conductive metal clips or electrodes in which blocks of metal oxi...	06/14/1983
4357588	High voltage fuse for interrupting a wide range of currents and especially suited for low current interruption A high voltage fuse for interrupting a wide range of currents and especially suited for low current interruption is disclosed. The fuse is comprised of a fuse element having a first and a second plurality of portions of reduced cross-sections. The second ...	11/02/1982
4322704	Electric fuse, particularly for use in connection with solid state devices Electric fuses according to this invention aim to increase the ratio between current-carrying capacity and i2 .multidot.t values. This means, in other words, to increase the current-limiting action for any given current rating. The fusible elem...	03/30/1982
4320374	Electric fuses employing composite aluminum and cadmium fuse elements The invention involves new high voltage current limiting fuses employing composite metal fuse elements. One metal of the composite is aluminum which is of high conductivity and high melting point while the other is cadmium which is of low melting point, s...	03/16/1982
4315235	Composite fusible element for electric current-limiting fuses A composite fusible element of silver and copper includes an inlay of silver and a base formed by a thicker strip of copper than the inlay of silver. The strip of copper is severed by a pair of juxtaposed incisions, so that the entire current is carried a...	02/09/1982
4313099	Current limiting fuse having aluminum sulfate arc-quenching filler A current limiting fuse construction including a fuse element extending between electrically conductive terminals carries a body of arc-quenching filler material within a hollow casing of electrical insulating material. The filler material includes a firs...	01/26/1982
4308515	Fuse apparatus for high electric currents A fuse for operation with both DC and AC currents is disclosed which consists of a composite fuse link contained in a large insulator housing. Located within the housing are first and second foil sections fabricated from a good conducting material. Each f...	12/29/1981
4260976	Current limiting fuse with auxiliary element A current limiting fuse is disclosed in which a main fuse element is wound at a given pitch around a fuse spider or mandrel. An auxiliary fuse element for assisting in low current high voltage current limiting operation is wound at generally the same pitc...	04/07/1981
4210892	Electric fuse having helically wound fusible elements An electric fuse for elevated circuit voltages, such as, e.g. 5 to 15 KV. It includes a tubular casing or electric insulating material, terminal elements and a pulverulent arc-quenching filler. It further includes a plurality of equidistantly spaced fusib...	07/01/1980
4198615	Full range current limiting fuse having high load current carrying capacity A current limiting fuse is provided with a number of discrete current limiting elements coupled electrically in parallel between a pair of conductive terminals, and a fused gap assembly in series with each current limiting element whereby full range fault...	04/15/1980
4114128	Composite sectionalized protective indicating-type fuse An indicating composite sectionalized fuse is provided having a high-current interrupting section, and a mechanically-connected detachable low-current interrupting section in series therewith, with the low-current interrupting section including a pull-awa...	09/12/1978
4083028	Pad-mounted double-fused vacuum switchgear Pad-mounted double-fused switchgear especially adapted for use in underground distribution systems is provided which includes an oil tank having manually operable vacuum switch apparatus therein in conjunction with closely adjacent, series-connected, comb...	04/04/1978
4054858	Electric fuse capable of interrupting small overload currents by series multibreaks The fusible element of a fuse that needs series multibreaks for interrupting small currents is provided with a shunt current path including an arc gap in the center region thereof. That current path does not normally carry any current on account of the pr...	10/18/1977
4041435	Protector for electric circuit The fusible element of an electric fuse has a first electrical path, a second electrical path in parallel relation with the first electrical path, a weak spot in the first electrical path which can respond to a potentially-hurtful overcurrent to fuse and ...	08/09/1977
4032879	Circuit-protecting fuse having arc-extinguishing means A circuit-protecting fuse comprises an insulating housing having electrically conductive connectors on opposite ends thereof to connect the fuse in an electrical circuit and at least one fusible link in the housing connected in electrically conductive rel...	06/28/1977
4012707	Fusible element for electrical apparatus Multiple portions exhibiting relatively different heat conductance characteristics, and so arranged that heat is concentrated in the fusible element, are used to control the heat transfer in a fusible element to achieve preselected time-current fusion cha...	03/15/1977
3983524	Electrical current limiting fuse having fusible element with additional cross-sectional necks at an arcing clip The fuse is of the general purpose type having a casing closed at the ends by terminal caps; a core inside the casing; a main fusible element wound about the core and connected between the caps; a pair of arcing clips mounted in spaced relation on the cor...	09/28/1976
3949340	Fuse construction A fuse construction has two spaced electrical conductors with inwardly directed conductor ends. A fuse plate member has opposite plate edges secured to said conductor ends. Said fuse plate has an inner insulative sheet with opposite outer conductive sheet...	04/06/1976

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Class 337/162 - With diverse characteristics