Abstract: Provided is a backup system including a storage system and a backup server, in which the backup server includes a ledger for managing a copy number and a backup acquisition date and time for each backup image, a data volume that stores data accessed by a business server, a backup image volume that stores a plurality of backup images at different time points of the data volume, an access volume having a volume ID for accessing the backup image from the backup server, and a data protection area including at least one volume having an internal volume ID instead of the volume ID for accessing from the backup server are configured in the storage system, and the backup image stored in the data protection area and the access volume are associated, and the backup image in the data protection area is provided to the backup server.

Abstract: Provided herein are protection devices, such as fuses, including a set of trenches or pockets for retention of solder therein. In some embodiments, a fuse includes a body including a center portion extending between a first and second end portions. The first end portion includes a first trench formed in a first end surface, and the second end portion includes a second trench formed in a second end surface. The fuse may further include a first and second endcaps surrounding respective first and second end portions. The fuse may include a fusible element disposed within a central cavity of the body, the fusible element extending between the first end surface and the second end surface. In some embodiments, solder may be disposed within the first trench and the second trench, wherein the solder is in contact with the fusible element, the first endcap, or the second endcap.

Abstract: A sealed fuse in accordance with the present disclosure may include a tubular fuse body, a trench formed in an exterior of the fuse body, and an electrically conductive endcap that fits over an end of the fuse body and is fastened to the fuse body by an electrically conductive material having a lip portion that extends into the trench to provide a barrier that extends between the fuse body and the endcap. In an embodiment, the trench may be formed in an end face of the fuse body and may extend entirely around an opening in the end of the fuse body. In another embodiment, the trench may be formed in an outwardly-facing surface of a sidewall of the fuse body and may extend entirely around the fuse body.

Abstract: To provide a connector wherein ground terminals can be designed easily, which not only suppresses the occurrence of impedance mismatch and crosstalk, but which does not lead to interferences between contacting portions. A ground terminal for a connector has a cylindrical main body. A plurality of contacting portions, for contacting a circuit board, are formed on the bottom edge of the cylindrical main body. The ground terminal has, as contacting portions, inner contacting portions and outer contacting portions. The inner contacting portions extend toward the inside of the cylindrical main body and in the downward direction, and the outer contacting portions extend toward the inside of the cylindrical main body and in the downward direction.

Abstract: A fuse includes an insulative body, a primary fuse element extending within the body, a fuse state indicator extending on an exterior surface of the body and electrically connected in parallel with the primary fuse element, and first and second ferrules coupled to opposing ends of the fuse body and electrically connecting the primary fuse element and the fuse state indicator. At least one of the ferrules includes a recessed contact area establishing electrical connection to the fuse state indicator.

Abstract: The present invention provides for a device allowing the mounting of laminated fuses onto a fuse support using a preferably square washer that is positionally held by a plurality of stops incorporated into said fuse support. The plurality of stops and square washer preventing the rotational movement of the nut being tightened during mounting of the laminated fuse from distorting or breaking said laminated fuse.

Abstract: A fuse assembly 1 including a pair of terminals 2 which are arranged in parallel to each other, a housing 4 having a cavity 20 for containing one end portions 3a of the terminals, and a fusible body 5 interconnecting the terminals 2. The fusible body 5 consists of a pair of supporting portions 39 connected to end faces 8 of the terminals 2, and a connecting portion 40 interconnecting the supporting portions 39. The fuse assembly 1 further includes anchoring parts 30 for fixing the fusible body 5 to the housing 4 and second anchoring parts 31 for fixing the terminals 2 to the housing 4. The anchoring parts 30 include through holes 45 formed in the supporting portions 39, and projections 46 projected from an inner face 17 of the housing 4 and adapted to be engaged in the through holes 45. Thus, conduction of heat generated in the fusible body 5 to electrical equipments connected to the terminals can be restrained.

Abstract: A high-voltage current-limiting fuse comprises an elongated housing, an auto-centering connector centrally located about the elongated axis of the housing, and an elongated fusible element attached to the connector and secured along the elongated axis of the housing by the connector. The auto-centering connector is located about the elongated axis of the housing by a surface near one end of the housing, and the elongated conductive fusible element is connected to the connector and contained within the housing. The auto-centering connector is connected to an end of the fusible element, and mechanically located but electrically insulated relative to the housing.

Abstract: A fuse housing assembly is disclosed that includes a rate release plug that prevents the emission of large quantities of dielectric oil from a transformer tank upon removal of a fuse holder from a bayonet-type fuse holder. The rate release plug allows pressurized gas inside the tank to escape while at the same time, impeding the flow of dielectric oil out of the tank.

Abstract: A capless fuse which includes a hollow fuse body, a fuse element within the fuse body and terminal pins having helical springs which are inserted into respective ones of the ends of the fuse body and directly connected to the ends and to the fuse element.

Abstract: A fuse 1 includes a pair of terminals 2, housing 4 and fusible body 5. The terminals 2 are provided so that their one ends are housed in the housing 4 and their other ends are exposed externally from the housing 4. The terminals 2 each has a recess to enlarge the interval therebetween. The recess 6 consists of a flat face 10 and step face 11. The housing 4 includes a pair of end walls 12a, 12b, and a pair of partition walls 22. The inner faces 15a, 15b of the pair of end walls 12a, 12b are opposite to each other in a direction orthogonal to the direction the pair of terminals are arranged in parallel and extend along the end faces of the terminals 2. The partition wall extend from the inner face 15b toward the inner face 15a. The second partition walls each covers the flat face 10. In this configuration, when the power with a current value which exceeds the fusing current value of the fusible body is supplied, supply of the power to the load can be surely stopped.

Abstract: A fuse 1 includes a pair of terminals 2, a housing 4 and a fusible body 5. The one ends 3a of the terminals 2 are housed within the housing 4. The housing 4 includes a pair of end walls 12a, 12b, a pair of side walls 13a, 13b, a first partition wall 21 and a pair of second partition walls 22. The inner faces 15a, 15b of the pair of end walls 12a, 12b are opposite to each other in a direction orthogonal to the direction of arranging the terminals in parallel and extend along the end faces of the terminals. The inner faces 16a, 16b of the side walls 13a, 13b are opposite to each other in a direction of arranging the terminals in parallel. The first partition wall 21 is located between the pair of terminals 2. The pair of second partition walls 22 are located between the first partition wall and the inner faces 16a, 16b, respectively.

Abstract: A fuse assembly, in which a pluraity of members constituting a housing of the fuse assembly can be mounted tightly and whether the fuse element has blown out or not can be easily checked, is provided. The fuse assembly 1 has a pair of terminals 2, a fuse element 5 and a housing 4. Each end 3a of the terminals 2 is received into the housing 4. The fuse element 5 connects the terminals 2 with each other. The fuse element 5 has a pair of locking claws 61. The housing 4 has casing members 4a and 4b, which receive each end 3a of the terminals 2 and the fuse element 5 when the casing members 4a and 4b are fit with each other in the housing 4. Each casing member 4a and 4b has a locking recess 64 for engaging with the locking claw 61. One locking claw 61 engages with one locking recess 64, while an opposite locking claw 61 engages with an opposite locking recess 64.

Abstract: A shield for an electrical fuse, including an inner enclosure for housing the electrical fuse and a pair of outwardly flaring end portions extending from the opposite ends of the enclosure. The shield includes walls separating the inner enclosure from each of the outwardly flaring end portions, and a slot in the walls for the extension through that slot of at least a terminal portion of the electrical fuse. The shield may be made of a pair of identical housing pieces with mating tongue and groove elements disposed substantially along the peripheries of those pieces. Preferably, the tongue element of the housing pieces is disposed on the opposite side as the groove element of the housing piece. Each of the outwardly flaring ends, or alternatively the walls, may cooperatively form a seal to aid in preventing entry of moisture or dirt into the shield. A sealing portion that aids in forming the seal may comprise a resilient, compressible grommet.

Abstract: A connecting structure of a fuse link 21 and external terminals 22,23 is provided, wherein a terminal connecting nut 27 is screwed to a male threaded portion 26 projecting through a metallic fuse member 25 of the fuse link 21 retained in a setting portion 24 so as to secure the external terminal 22 to the metallic fuse member 25 in a conductive state and a terminal connecting bolt 28 is put through both of the external terminal 23 and the metallic fuse member 25 and is screwed to a female threaded portion 68 so as to secure the external terminal 23 to the metallic fuse member 25 in a conductive state.

Abstract: A large current fuse 1 for automobiles comprising a fuse body 2 consisting of a pair of flat plate portions 4, 4 formed of a sheet metal by pressing process, an arm portion 5 bridging the flat plate portions, and a fuse element 3 attached to the arm portion, wherein a first housing member 10 and a second housing member 30 are arranged around the fuse body at an intermediate portion thereof, the first and second housing members being detachably fitted to each other, whereby the fuse element can be entirely covered with the first and second housing members. At least one of the first housing member and the second housing member is formed of a transparent resin so that the fuse element can be visually observed through the one housing member. A radiation fin is provided on at least one of the first and the second housing members.

Abstract: A surface mounting type electronic component such as a solid electrolytic capacitor is provided which comprises an electronic element, a safety fuse wire having a base end electrically connected to the electronic element, and a resin package enclosing the electronic element together with the fuse wire. The fuse wire also has a tip end which is exposed at a face of the resin package, and the face of the resin package is formed with a layer-like terminal in electrical connection with the tip end of the fuse wire.

Abstract: A fuse comprising first and second tab-shaped terminal plates, a fuse link, a first resin reinforcing member, a second resin reinforcing member. The fuse link is interposed between the first and second tab-shaped terminal plates. The first resin reinforcing member is for reinforcing a first boundary portion defined between the first tab-shaped terminal plate and the fuse link, and is integrally molded so as to cover the first boundary portion. The second resin reinforcing member is for reinforcing a second boundary portion defined between the second tab-shaped terminal plate and the fuse link, and the second resin reinforcing member is integrally molded so as to cover the second boundary portion.

Abstract: The present invention relates to a fuse for improving the reliability and facilitating automation the process and, in this fuse, an inner cap 14 is provided between a glass tube 12 and a cap terminal 13; a passage 22 for ventilating the inside of the glass tube 12 is provided between the inner cap 14 and the glass tube 12; an end portion 15a of the fuse element 15 is taken out between the cap terminal 13 and the inner cap 14 through an element insertion hole 14b formed on a bottom plate 14a of the inner cap 14 in order to electrically connect the end portion 15a with at least the cap terminal 13; and the cap terminal 13 is fixed to the inner cap 14.

Abstract: A fuse housing assembly having a fuse holder housing for receiving a fuse holder. The fuse housing is mountable to a transformer tank that holds a dielectric liquid. When the fuse holder and fuse are inserted into the fuse housing that is mounted to the transformer tank, the fuse is located under the dielectric oil. The fuse holder assembly includes a vent tube that communicates a gas above the level of the dielectric liquid in the transformer to the interior of the fuse holder housing. When an operator removes the fuse holder to replace an exhausted fuse, a seal formed between the fuse holder and the fuse holder assembly is broken, and pressurized gas within the transformer tank will vent through the vent tube, through the interior of the fuse holder housing, and out an open end of the fuse holder housing to atmosphere, rather than causing the dielectric liquid to flow out of the fuse holder housing.

Abstract: A fuse includes at least one ceramic part at least partially surrounded by a sinterable mass coating that is electrically conductive after a sintering process. The sinterable mass coating is disposed in the vicinity of the two remote sides of the first part. The fuse also includes a second part firmly connected to the first part by the mass coating. The second part has an electrically conductive surface and a fuse element. A method for manufacturing a blowout fuse includes fixing a first part of the fuse made from metal or a ceramic material to a second part of the fuse made from metal or a ceramic material using a sinterable mass. This method includes the steps of applying a mass to be fixed by sintering to at least one portion of the surface of the first part and/or one portion of the surface of the second part. The mass acts as an intermediate layer between the two parts to be connected and wholly or partially covers both surfaces.

Abstract: A fault current fusing resistor, comprising a substrate on which there is a line of resistive film formed of metal and glass in a conductive film, which line is closely confined by containing and sealing substances to prevent venting of vapor from the line during the fusing caused by an electrical fault condition.

Abstract: A fuse having a pair of blade-type male terminals inserted into one opening of a fuse housing, which is made of synthetic resin, having a through hole. An element portion of the fuse is removably inserted into the other opening of the housing. The element portion includes a pair of leg portions fitted at their distal ends in element holding portions on the terminals. A fusible portion interconnecting proximal ends of the leg portions and one end of a connecting portion extending in a direction opposite to a direction of extending of the terminals. A heat-radiating plate portion is formed integrally on the other end of the connecting portion, and is covered with a cover. The cover is exposed exteriorly of the housing when the element portion is inserted into the housing.

Abstract: A subminiature circuit protector includes a substrate carrying a metal fuse element hermetically sealed in a glass sleeve cartridge. The fuse element may comprise a film deposited on the substrate, or, alternatively a metal strip or wire. Leads extend from opposing ends of the sleeve for connection in a circuit, and a gas is sealed in the sleeve to provide a suitable environment to improve operating lifetime and interrupting capability. A method for making a circuit protector includes placing a substrate carrying a fuse element in a glass sleeve and placing leads in contact with the fuse element. The assembly is heated in the presence of a gas below atmospheric pressure to a temperature sufficient to soften the glass. The pressure is then increased to cause the ends of the glass sleeve to form a hermetic seal about the leads.

Abstract: An electrical fuse having an insulator, through which a cavity extends from one end to the facing end and which has a cross-sectionally square or rectangular casing part, is further developed in such a way that in the case of easy manufacture a reliable sealing of the cavity openings and a reliable fixing of the fuse element ends, as well as the connections or terminals to the end portions of the insulator are ensured, particularly in such a way that connections projecting over the insulator profile are avoided. For this purpose the insulator has on at least one side an offset end portion of constant cross-section. The fuse is in each case provided with a solder coating at least covering the ends of the end portions, has electrical connections and also a fuse element, which passes through the cavity and whose ends are in each case conductively connected to the electrical connections.

Abstract: 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 together in a rigid, porous mass, a fusible element wound about the core, and connector assemblies at opposite ends of the core electrically connected to opposite ends of the fusible element. The fuse subassembly is closely surrounded by silica sand in the space between the housing and the subassembly.

Abstract: A pair of metallic electrodes gripping a fusible wire are attached to opposite ends of a box-like shaped body into which is pressed a lid portion to an extent to be slightly sunken relative to an upper surface of the body. Then adhesive is applied to the lid portion to fix the lid portion to the body to seal the interior of the body. The fusible wire is extended in the interior of the body in a floating condition. Such a construction allows easy manufacture, enables variation of pre-arcing time-current characteristic to be kept to minimum, and brings about a high degree of reliability.

Abstract: A fuse that includes an insulating housing made from two housing pieces made of thermoplastic material, terminals extending through slots in the ends of the housing, and a fusible element having ends connected to both of the terminals. The housing includes a tubular portion and slotted end portions located at each of the two ends of the tubular portion. Each of the terminals has an internal portion inside the housing to which a fusible element is attached, an external portion outside of the housing, and a middle portion between the internal and external portions and located within one of the slots.

Abstract: 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 contact assembly on the fuse body is mounted on a hinge which is rotatably supported on an interchangeable cutout mounting. The current limiting fuse includes a fuse element spirally wound around a spider which extends the length of the fuse body. The fuse element includes a high current fusible element and a low current fuse element. The fusible element includes a plurality of spaced reduced areas and is supported on the spider by support surfaces which are located between adjacent reduced areas of the fusible element. An auxiliary wire also extends the length of the fuse body about the spider.

Abstract: 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 openings in the end block portions, and a fusible element having ends connected to both of the terminals. Each of the terminals has an internal portion inside the tubular member to which a fusible element is attached, an external portion outside of the tubular member, and a middle portion between the internal and external portions and located within one of the openings of the end block portions.

Abstract: A blown fuse indicator for a cartridge fuse wherein conductive brackets are mounted between electrical insulating end caps and the ends of a tube housing a lamp and associated resistors. Each conductive bracket includes a disc portion having a polygonal aperture for receiving a sleeve integral with the cap, the sleeve having a polygonal cross-sectional configuration corresponding to the disc aperture. The free ends of the lamp and resistor leads extend through the disc portion of the conductive bracket and are pressed and gripped between the cap and conductive bracket. The conductive bracket also includes a blade portion which may have a planar surface, a corrugated surface or a reversely bent portion to provide direct and positive contact with the end walls of the fuse ferrules, whether they be flat, concave or convex.

Abstract: A terminal assembly for a fuse using multiple end plate pieces to collar a terminal element around a neck portion, the end plate pieces being attached to a housing.

Abstract: Disclosed is an electronic part having a safeguard function for protecting the associated electronic equipment against abnormally high voltages such as lightning surge voltage. It is equipped with an element which cuts off any continuous excess current so as to prevent the surge absorbing element and the protected circuit from being spontaneously ignited. This electronic part having a safeguard function comprises: a surge absorbing element (1); a low-melting-point metal element (23) which is electrically connected in series with said surge absorbing element (1) and which is held in contact with said surge absorbing element (1) in such a manner as to allow a satisfactory heat conduction therebetween; and a thermocontractive insulating tube (25) which covers over the periphery of said surge absorbing element (1) and the periphery of said low-melting-point metal element (23).

Abstract: A solderless cartridge fuse comprises an open-ended insulating housing made of a relatively rigid, unyielding material. End caps close the open ends of the housing. Each end cap comprises an end wall confronting the adjacent housing end and a flexible yieldable side wall which, in its pre-formed state, has a lesser size than the periphery of the adjacent end of the housing so that there is a tight interference fit between the conductive end cap side wall and the housing periphery. A fuse element extends diagonally across the interior of the housing. Prior to application of the end caps to the housing ends during fuse assembly, the fuse wire ends are bent back around the housing ends so to be tightly sandwiched between the side walls of the end caps and the housing when the end caps are applied thereover.

Abstract: A surface-mounted fuse has a hollow, open-ended insulating fuse body with a square sided central portion terminating in opposite, preferably square-sided, recessed, tapered end portions. A pair of preferably square-sided conductive end caps are provided having end walls respectively confronting the open ends of the fuse body and side walls enveloping the tapered end portions thereof. The side walls of the end caps define annular tapered cavities to receive without compressing the fuse wire one or more bent back ends of a fuse wire. The recessing of the tapered end portions of the fuse body provides axially outwardly facing abutment shoulders which limit the extent to which the end caps can be moved over the fuse body during assembly. The end walls of the end caps are then spaced from the ends of the fuse body to form outer spaces of greater size than the fuse element thickness, so that the ends of the fuse element are not compressed between the end cap end walls and the ends of the fuse body.

Abstract: A continuous hollow compartment open at both opposite ends thereof is arranged within an electrically insulating housing. Tubular portions of end contacts extend into ends of the hollow compartment and are completely covered at their inner surfaces by an arc-inhibiting screen. Flat portions of the end contacts form clamping locations and solder pins. The ends of a fuse wire and the ends of the screen are clamped at the clamping locations. The solder pins form a respective wave solder region and a reflow solder region. During manufacture of the safety fuse element, the tubular-shaped end contacts are inserted into the ends of the hollow compartment of the housing. Then there is drawn-in the screen and the fuse wire and the flattenable portions of the end contacts are flattened to form the flat portions, so that there are clamped at the clamping locations the ends of the fuse wire and the ends of the screen. Now the flat portions are bent to form the solder pins.

Abstract: A fuse of the miniature or sub-miniature type with a housing of insulating material and having metal points of connection at, or in the vicinity of, two spaced ends thereof for connecting a fuse wire, and a fuse wire secured to the points of connection and stretched between them within the housing. According to the invention, at least one ridge or wall of insulating material is provided between the two points of connection in the housing so that each of the points of connection is, as it were, situated in a separate chamber. The fuse extends across the ridge and makes an angle at the passage across the ridge.

Abstract: A current limiting oil immersible fuse including a tubular housing having a resilient elastomeric cap sealed to each end of the housing, an end cap independently mounted on each end of the housing and overlying the resilient elastomeric cap and a fuse assembly supported in the housing by the end caps.

Abstract: A cylindrical cartridge-type fuse has terminal end caps configured to provide insertion-limiting shoulders arresting the movement of the insulating fuse housing sleeve into the caps during assembly, and further configured with solder-retaining wells having surfaces configured to aligningly guide an inserted fuse element into a generally central location when the sleeve and fuse element are forced into the cap with the solder in a molten condition. Accidental solder voiding arising from the displacement caused by the sleeve and the fuse element is eliminated, and a centered fuse element is provided, secured by an adequate mass of solder therearound. Additional mechanical strength is optionally imparted to the system by coating the finished structure with an adherent plastic or resin material.

Abstract: A miniature end capless fuse comprises a nonconductive sleeve with a fusible element extending through it and leads to the ends of the fuse wire. Each electric lead to the fuse wire includes a deformed region near its end, but located outside the sleeve, for being held by insulating material applied over the entire fuse. The deformed region may be an enlargement at the end which does not extend into the sleeve but is attached to the end of the sleeve. It may alternately be a notch formed in the lead. The sleeve ends are metallized, the fusible element ends are soldered to the ends of the sleeve and the leads near their deformed regions are soldered to the ends of the sleeve, forming the fuse. The entire fuse is covered with a strengthening covering, e.g., a molded covering, which securely holds the leads to the sleeve by their deformed regions, e.g. their enlargements or notches.

Abstract: 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 plugging sand holes 20.

Abstract: A high speed fuse 8 having elements 14 staked to non-electrically conductive end balls 12 with fusible element 30 connected to ridges 44 on terminal 14 by projection welding, and round balls 18 plugging sand holes 20.

Abstract: A chip-type micro-fuse including a fusible element, a hollow body made of heat-resistant and insulative materials having at lesat two recesses which are respectively formed on an outer peripheral surface thereof, near the ends thereof and two end caps adapted to respectively cover the ends of the body for electrically connecting the body with external circuits. The end portions of the fusible element are respectively connected at the recesses to the end portions of the body. Further, the recess defined near one end portion of the body is positioned diagonally spaced with respect to another recess defined near the other end of the body. Thus, the fusible element is diagonally stretched between the ends of the body across the inner space of the body. When assembled, the end portions of the fusible element are respectively drawn out from the interior of the fuse without damaging the fusible element and connected at the recesses to the body.

Abstract: Within an electrically insulating housing there is provided a continuous hollow space open at both ends. Tubular portions of end contacts are insertably disposed at both ends of the hollow space. Flat portions of the end contacts form clamping locations for a fusible conductor and also solder legs. At the clamping locations there are clamped the ends of the fusible conductor. Each of the solder legs form an associated wave soldering region and a reflow soldering region. During fabrication of the fuse device the end contacts which then still possess a tubular-shaped configuration are inserted into the ends of the hollow space of the electrically insulating housing. There is then drawn-in the fusible conductor and predetermined portions of each of the end contacts are pressed flat for form the flat portions. In this way, the ends of the fusible conductor are clamped at the clamping locations. Thereafter, the flat portions are bent to form the solder legs.

Abstract: A draw-out fuseholder 10 is made containing a first, electrically conductive metal fuse contact 11 having an outer chamfer 12 and a circumferential top surface 13, a second, extended, electrically conductive metal fuse contact 14 having an inner chamfer 15, an outer chamfer 16, and a circumferential top surface 17, and insulating tube 18 comprising fiber reinforced, thermoset resin between the fuse contacts, where the top of the insulating tube has a sharp edge 19 and discontinuity 20 near the second fuse contact inner chamfer 15, and where the ratio of first fuse contact exposed length 25: second fuse contact exposed length 26 is from 1:1.3 to 1:2.5. This fuseholder 10 can be placed in the housing 32 of a draw-out device 30, where housing contact sets 39 and 40 mate with the fuse contacts 14 and 11 in an at-rest position.

Abstract: An end cap connection assembly for use in connecting the metallic end caps of an electrical device such as current limiting fuses or lightning arrestors to associated insulative housings is provided which gives a strong mechanical bond as well as a leak-proof seal between these components. The connection assembly includes a cap presenting a continuous, annular, generally U-shaped in cross section housing-receiving groove, along with a relatively rigid synthetic resin sealing adhesive contacting both the groove walls and housing. The rigid adhesive is selected to have a heat distortion temperature closely matching that of the housing. Preferably, sealing material also has a thermal coefficient of expansion profile analogous to that of the housing. In this way the overall sealing assembly can successfully resist leakage resulting from thermal cycling. The sealing assembly of the invention completely eliminates the use of conventional O-rings, gaskets or similar expedients.

Abstract: A method of attaching a lead to a metal end cap of an otherwise complete miniature-type safety fuse having a fuse element secured to the interior of said end caps by connecting means, is characterized in that the attaching is effected by a soldering operation which comprises holding one end of said lead against said end cap, wherein the region where attachment is to take place there is a given amount of solder, and supplying to said region a metered amount of energy in the form of one or more energy pulses producing over a given period enough total energy to melt said quantity of solder, but of insufficient total energy to penetrate through said end cap and adversely affect the bonding of said fuse element thereto.

Abstract: A method for assembling terminal cup-shaped end caps over the ends of cartridge-type electrical subminiature fuses during the assembly thereof has for its novel feature the provision of a centered axially extending handling wire attached to the outer face of each end cap prior to the assembly process. By configuring the lengths of the handling wires substantially longer than the dimensions of the cap itself, the use of an alignment fixture employing the wires for handling and alignment purposes allows for precise orientation of the end caps during the press-on assembly process over the ends of the fuse body. After assembly the wires are removed from their respective end caps. A shearing station suitable for mass production lead removal has upwardly extending sheraing blades with the fuses passed sequentially past the blades with their leads extending slightly over the top of the blade cutting edges.

Abstract: A cartridge fuse including a tubular insulating body, integrally formed ferrule terminals secured over the respective ends of the insulating body, and a fusible strip extending within the insulating body electrically interconnecting the ferrule terminals.

Abstract: 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 terminal bracket. A leg member electrically and mechanically interconnects the terminal bracket to an end cap assembly fixed to a fuse housing and is flexible for allowing variation in distance between the end cap assembly and the internal subassembly such as would occur when the fuse is exposed to thermal excursions. The flexible leg has a portion which extends in generally transverse relation to the longitudinal axis of the subassembly, and the leg portion is swingable in an arc as the associated end cap assembly shifts relative to the position of the terminal bracket.