Abstract: An improved cartridge fuse has resilient plugs at opposite ends of the fuse housing through which extend a centered fuse filament held in tension by the defining walls of a plug passage hugging the fuse filament to maintain such tension. The fuse filament is placed in the plug passages by means of a needle which is passed through the fuse housing and the plugs therein to create a path for the fuse filament which, when the needle is pulled from the housing, leaves the fuse filament in a tensed centered condition in the fuse housing.

Abstract: A miniature fuse suitable for printed circuit applications and a manufacturing method therefor features preferably a generally rectangular elongated insulating body having a fuse element preferably diagonally disposed in a fuse cavity therein and terminals preferably insert molded therein and extending preferably from the opposite ends thereof. The cavity preferably opens onto opposite longitudinal sides of the body, but provision may be made to optionally close-off one of the cavity openings by a cover plate. The body is sealed by a sleeve which is preferably a semi-rigid expandable member but which could be a piece of expandable shrink tubing. Lay-in grooves preferably extend from the opposite ends of the cavity to conductive fuse attachment surfaces which are initially preferably bendable tabs located beyond the outer surface of the body to allow the fuse element to be conveniently attached or captured thereby during fuse assembly.

Abstract: A fuse is disclosed for protecting thick film devices. The fuse comprises two blocks of material mounted to the substrate that carries the thick film device. The blocks are mounted in close proximity to one another, in axial alignment, but in a spaced apart relationship. An electrically conductive fusible link (e.g. solder) straddles the two blocks so as to complete an electric circuit.

Abstract: An electric micro-fuse comprises a hollow body and a lid therefor. The interior of the fuse body is divided into five sections consisting of two raised plateaus and three recessed sections, wherein the central recess is connected to each end recess through a channel. A fusible element is diagonally stretched between the channels and a lead wire is inserted through each end of the fuse body into the end recesses and are soldered to the respective end of the fusible element. After soldering, the fuse body is covered by the lid and sealed hermetically by a suitable adhesive.

Abstract: An improved fuse assembly having a unique structure comprising a rigid tubular member having preformed solder-receiving recesses on its outer surface at each end of the tubular member. A fusible element is stretched between the ends of the tubular member and a preformed notch on the rim at each end of the tubular member serves to pick up each end of the fusible element and bent thereover for embedding it into the preformed outer recesses of the tubular member.

Abstract: A method for fabricating a fusible link assembly which includes a sleeve with a flanged end for receiving a solder rod and a smaller opening at the opposite end for receiving a conductor wire. The wire is placed through the smaller end of the sleeve and is held in position mechanically while solder is supplied at the flanged end to form a rigid connection between the rod and the wire through a soldered connection with the sleeve which acts as the intermediate connection.

Abstract: A crimp fuse constituting a separate unit independent of the electrical equipment with which it is to be used is disclosed, comprising a length of fuse wire material supported by an insulative rod onto each end of which is crimped a sleeve of e.g. conductive ribbon. An insulative covering, such as a shrunk-on piece of insulative tubing, insulates the wire and provides mechanical strength to the structure. One or both sleeves may be a double sleeve including a female terminal into which e.g. the stripped end of a line cord could be inserted for connection to the fuse. A pigtail may be provided at either or both ends to facilitate soldering.

Abstract: Electrical fuse comprises an insulating body having a pair of coplanar blades extending from one end thereof. The blades have portions which are supported in the body and a fuse metal link is contained in the insulating body and extends between the supported portions. The conductors which comprise the blades and the supported portions of the blades are produced by die casting and the fuse metal link is insert die cast in these conductors. The insulating body is molded onto the conductors.

Abstract: A quick-acting fuse comprising a fuse base encased within an insulated fuse cartridge. The fuse base consists of a lower insulating plastic (phenolic) plate and an upper conductive metal (copper) plate coextensively bonded to the lower plate. The fuse base has an enlarged mid-section of generally hexagonal or polygonal configuration which necks down on both sides to a pair of projecting arms whose ends are soldered to end caps used to seal the fuse cartridge when the fuse base is placed therein. The mid-section of the fuse has a generally elliptical hole and the upper metallic plate is partially etched away around said hole so as to provide a pair of spaced-apart and opposed conductive terminals. A pair of opposed grooves is provided, one at each end of said conductive terminals, and a fusible element is stretched between said grooves across said generally elliptical hole. A solder pool is provided next to each groove for quantitative soldering the ends of the fusible element.

Abstract: An electric fuse having a support for helically wound fusible element or elements. The support includes a plurality of rods which are supported at their opposite ends adjacent the fuse end terminal by rod supports each of which is made from a pair of angularly arranged sheet-metal channels. The channels have a U-shaped cross-section and are arranged with their open ends facing the center of the fuse housing. Centrally positioned sections of the channels are flattened to facilitate rigid attachment of the channels to one another. The ends of the rods are received in and attached to interior portions of the U-shaped channels. A sub-assembly comprising the rods, rod supports and the wound fusible elements is pre-assembled and, when placed in a fuse housing, the ends of the channels cooperate with the inside walls of the housing to properly position the entire assembly.

Abstract: A blade type fuse whose blades project through the end surfaces of the caps which close the tubular casing. Thus the blade contacts project from the outside of the casing into the inside thereof. There are a plurality of fusible elements inside the casing, all having substantially the same resistance. Some of the fusible elements inside the casing that interconnect the aforementioned blade contacts have a relatively small spacing from the plane defined by the pair of blade contacts. Others of the fusible elements that interconnect the aforementioned blade contacts have a relatively large spacing from the plane defined by the pair of blade contacts. All fusible elements are approximately equally distributed across the cross-section of the casing. This involves for some of the fusible elements a relatively large, and for others of the fusible elements a relatively small, spacing from the plane of the blade contacts to which their ends are attached.

Abstract: An electric fuse having a cartridge formed of a pair of semi-cylindrical casings, i.e., a body casing and a cover casing. The cover casing has a circumferential flat edge surface and a central ridge protruding above the flat surface, and the body casing has a circumferential flat edge surface and a central channel recessed therein for receiving the ridge section of the cover casing so as to form a passageway between the ridge section of the cover casing and the channel when the two casings are coupled to form the fuse cartridge. A fusible element is stretched diagonally between the ends of the body casing, passing through a pair of grooves in the edge surfaces at the end of the body casing, extending through the passageway and out through a pair of grooves disposed at the ends of the body casing, approximately in the middle thereof. The ends of the fusible element are soldered and capped or they may be soldered to the respective ends of a lead wire without end caps.

Abstract: A fuse cartridge specifically designed to resist axial compressive forces is disclosed. The tubular body of the cartridge is reinforced by an insulating spacer between the heads of the cartridge which is capable of resisting such compressive forces. The spacer is normally located on the axis of the cartridge but may itself be tubular and surround the fusible elements if desired. The cartridge is particularly designed for mounting radially on a rotatable support with its outer end secured thereto and a fixing lug may be provided for this purpose. To compensate for the mass of the lug, a lateral cutaway is formed in the head from which it extends.

Abstract: An improved fuse link has a fusible element attached between first and second terminals. The first terminal is attached to, or integral with, a length of flexible stranded cable. The terminals, the fusible element and some of the cable are within an arc-extinguishing sheath. The cable is unified and stiffened for a selected distance immediately adjacent the first terminal to act thereat substantially as a solid rod. The unified region acts as a guide for the first terminal moving through the sheath, reduces binding friction between the cable and the sheath, and eliminates "mushrooming" of the cable within the sheath.

Abstract: A fuse link and a method of manufacturing same are disclosed. The fuse link comprises a fusible element extending between an upper terminal and a lower terminal. The lower terminal includes a compressed segment of a multi-strand cable to which the fusible element is attached. In practicing the method of the present invention, a segment of the multi-strand cable is first radially compressed, as by cold-forming, to produce a longitudinal receiving region or pocket indentation for receiving an end of the fusible element. Thereafter, an end of the fusible element is placed into the receiving region. The region is then further compressed and collapsed to secure the fusible element therein by crimping a compressible sleeve previously placed around the fusible element and the cable-segment.

Abstract: An electric fuse having plug terminals. The fusible elements are connected to the plug terminal by the intermediary of metal strips having three sections. One section is inserted into the grooves of the plug terminals and conductively connected with the latter. Another section is arranged in a plane parallel to, but spaced from, the plane defined by said first mentioned section. A third section of the metal strips conductively interconnects the first section and the second section thereof.

Abstract: An electric fuse the fusible element of which is arranged off-center of the casing. The fuse casing is closed by caps through the end surfaces of which the knife blade contacts project into the casing. The spacing of the end surfaces of the caps to the axially inner ends of the blade contacts is substantially equal. Each of the axially inner ends of the blade contacts is conductively connected to the fusible element by the intermediary of a flexible metal strip having a smaller cross-section than each of the blade contacts. This imparts a relatively great flexibility to the unit including the blade contacts, the flexible metal strips and the fusible element.

Abstract: An electric fuse including blade contacts projecting through the terminal caps into the casing. The axially inner ends of the blade contacts are conductively connected by electroconductive elements to the axially outer ends of the fusible element. The electroconductive elements each comprise a first planar arm conductively affixed to one end of the fusible element, a second planar arm arranged parallel to and spaced from said first planar arm and conductively affixed to one end of the blade contact, and tie means integral with said first and said second arm conductively connecting the axially outer end of said first arm to the axially inner end of said second arm.

Abstract: A six rib spider assembly for a fuse including a dielectic housing having end caps for supporting the spider assembly within the housing and a fusable ribbon helically wound on the spider assembly, the housing being filled with a granular dielectic material. The spider assembly including three mica plates each having a number of notches in their longitudinal edges to define support surfaces along each longitudinal edge for the fusable ribbon. These support surfaces on each longitudinal edge being offset from the support surfaces on the opposite longitudinal edge as well as from the support surfaces on each of the other mica plates. Each plate also including at least one longitudinal slot intermediate the longitudinal edges of the plate with one of the plates including a second slot, whereby the plates can be cross fitted into each other with the plates angularly related so that the support surfaces define a helical path for the fusable ribbon.

Abstract: A fuse comprises a thin metal strip of constant thickness mounted on an insulating support and having relatively wide portions mutually spaced apart and interconnected by a relatively narrow portion constituting a fusible link which overlies a recess or aperture in the support so that the fusible link is spaced apart from the support surface. Preferably, the strip is folded about one end of the support with the fusible link remote from the fold, the relatively wide portions extending around the fold on each side of the support to constitute tab contacts for mating with a receptacle.

Abstract: The terminal elements of an electric fuse are made up of two separate parts of which the axially outer part is circular in cross-section and the axially inner part has a smaller area than the axially inner end surface of the axially outer part. The aforementioned two parts define ducts at the interfaces thereof. The ends of the fusible elements are inserted into these ducts. Solder joints conductively connect the ends of the fusible elements to the parts of which the terminals consist and affix the smaller of these parts to the larger of these parts.

Abstract: An electroluminescent display device includes at least two conductive leads spaced from each other with a light-emitting element electrically coupled between such leads. A transparent, insulating base is formed about and between the leads. The base encapsulates both the leads and the light-emitting element.At least one lateral portion of each lead extends beyond the base and substantially conforms to the configuration of the base. In conforming such lateral portions, they are preferably wrapped around the base and fixed to it. These lateral portions are arranged so that light from the light-emitting element may pass axially through the base and out of its ends. In addition, light may pass laterally out of the base.The device may also be used for circuit protection purposes. To so use the device, a protective element is electrically coupled between the leads so that upon the occurrence of an overload condition in an external circuit coupled to the lateral portions, the protective element decouples the leads.

Abstract: A full-range, current limiting fuse which includes a modular fuse subassembly which can be assembled with any pair of several types of paired end caps to construct any one of several types of fuses. This modular subassembly includes a main fuse element helically wound about a gas evolving spider and connected to element termination plates mechanically attached to each end of the spider, and an auxiliary fuse element, electrically isolated from the main element, which is also helically wound about the spider and connected at one end to a contact button centrally disposed at one end of the spider.This modular subassembly is positioned within a sand-filled fuse tube sealed at both ends by brass end caps which are magnetically formed and epoxied thereon. The main fuse element is electrically connected at each end to a respective end cap by terminal tabs of the element terminations which extend through matching openings in the caps, and are soldered therein to hermetically seal the openings.

Abstract: A circuit breaker assembly includes a subassembly comprising a circuit breaker and a one piece terminal which is severed to provide two separate terminal pieces after the subassembly is secured in the housing. In a second circuit breaker assembly the one piece terminal forming part of the subassembly is severed at three places to provide three separate terminal pieces.

Abstract: A high voltage fuse of the current limiting type including a housing of insulating material, a cylindrical support formed by an inorganic asbestos thread or string threaded on end plates which are mounted in a spaced relation on a support rod, the thread forming a cylindrical support for a fusible element which is spirally wrapped about the cylindrical support. An arc quenching material is used to fill the housing and completely surround said fusible element.

Abstract: An electrical current limiting fuse having longitudinally spaced support members for fuse elements. The support members comprise a central portion having radial arms supported thereon. Coiled fuse elements are disposed between complementary radial arms of the longitudinally spaced support members. The fuse elements are not coiled around each support member as a whole to completely peripherally encompass it but merely are held at one position on the periphery.

Abstract: A high voltage current limiting fuse is taught which has a plurality of radially oriented, notched, pleated fuse ribbons. The fuse ribbons feed through radial slots in spacers at either end of the fuse barrel. A double fold in the fuse ribbon in the region of the slot in each case provides a locking terminal for abutting the fuse ribbon against the spacer. In addition, the double fold arrangement allows the fuse ribbon to be routed conveniently radially over the edge of the spacer and along the side of the fuse barrel, between the fuse barrel and the inside of a ferrule. This secures the end of the fuse element and provides electrical continuity between the fuse element and the ferrule.

Abstract: An insulating support for fusible elements in ribbon form having points of drastically reduced cross-sectional area which reduces the dimensional stability of the fusible elements to such an extent that they are not capable of supporting themselves. The support consists of a strip of electric insulating material arranged in spaced relation from, and parallel to, the fusible element. The strip has a plurality of arms projecting transversely from the former. Each of said plurality of arms supports the fusible element at a region situated between points of drastically reduced cross-sectional area thereof.

Abstract: A miniature fuse for small current ratings and small voltage ratings has a casing of porous cellulosic material, a pulverulent non-fulgurite-forming arc-quenching filler, a fusible element of low fusing point metal having ends bent upon the outer surface of the casing and squashed by the pressure of terminal caps press-fitted on the casing, and bodies of a cured synthetic resin imparting dimensional stability to the ends of the casing, firmly affixing the terminal caps to the casing, and resulting in the formation of a conductively stable mechanical connection between the fusible element and the terminal caps.