Abstract: A fuse including a housing having upper and lower portions, a plurality of terminal portions disposed in the lower portion, each of said terminal portions having first and second prongs and a gap therebetween, the gap narrowing from a first width adjacent an upper end of said first and second prongs to a second width adjacent a lower end of said first and second prongs, a fusible link disposed in the upper portion of the housing between said plurality of terminal portions, and a partition in said lower portion of said housing, wherein a distance between each of the second prongs and the partition increases from a first end of each of the second prongs proximate the upper portion to a second end of each of the second prongs distal from the upper portion for allowing the second ends to be displaced toward the partition before engaging the partition.

Abstract: A primary electrical fuse is attached to a printed circuit board. The primary electrical fuse comprises a first and second terminal, a fusible element disposed between the first and second terminals electrically linking the first terminal and the second terminal, and receiving tip sections located on the first and second terminals that receive a replacement electrical fuse to electrically connect the first and second terminals with a replacement fusible element.

Abstract: A fuse includes a fuse element having a pair of terminal portions interconnected by a fusible portion, pivot pawls provided between the fusible portion and each of the terminal portions, seat surfaces respectively supporting the pivot pawls thereon, thereby holding the fuse element within an insulating housing, and pivotal movement-allowing spaces for allowing two portions of the fuse element, separated from each other when the fusible portion is melted, to be pivotally moved about the pivot pawls inside and outside the insulating housing.

Abstract: A fuse including a fusible link element having a pair of terminal portions and a fusible portion through which the terminal portions are connected to each other, the terminal portions having upward locking pieces at upper corners thereof, a housing for receiving the fusible link element, having stepped recesses between inner and outer walls thereof in which end portions of the upward locking pieces are fitted when the upward locking pieces are bent inwardly, and a housing cover for closing an open end of the housing, having legs which are extended towards the housing so that the legs are abutted against the end portions of the upward locking pieces when the cover is fitted to the housing, lower ends of the legs having taper surfaces brought into contact with the outer sides of the upward locking pieces.

Abstract: A plug-in fuse device can be handled without special tools and permits convenient replacement of a burnt-out fuse element. The device has a rigid housing with a pair of plug portions. Each plug portion is shaped to plug into a socket and carries a fuse assembly which includes a pair of terminals for engagement with socket elements, a fuse element between the terminals, and a pair of conductive contacts. The terminals extend from one end surface of the plug portion, and the contacts are located at an axially opposite end surface. The plug portions are connected at their contact-bearing surfaces, and the terminals of one plug portion extend in one axial direction and the terminals of the other plug portion, in the opposite axial direction. The plug portions are also offset to different sides of the general plane of the housing. Thus, when either plug portion is plugged into the socket, its contact-bearing surface is available for continuity testing.

Abstract: A tap-in blade fuse is disclosed. A first embodiment comprises a plastic transparent body with two terminal blades on one side for use with an electrical fuse panel/box in an automobile. The other side of the body has an accessory blade extending from the body with a through-hole in the the accessory blade for allowing a wire connection to pass through the hole for connection to automobile accessories. All the blades arc connected together with visible fuse links. A second embodiment further includes a panel shaped insulator which separates the fuse links within the body.

Abstract: Disclosure is a fusible link which prevents a housing from being deformed and discolored due to unnecessary generation of heat in a fuse element. In the fusible link, each of connecting plates includes two elastic engagement pieces and two projections respectively in each of ribs which are formed by folding the two ends of the connecting plate. A housing includes, in the inner wall of a connecting plate insertion hole through which the connecting plate is inserted, a connecting plate slip-off preventive stepped portion to be engaged by the elastic engagement piece and a connecting plate slip-off preventive flange against which the preventive projection is abutted. When the connecting plate is inserted through the connecting plate insertion hole, the engagement portions in the connecting plate are engaged with engagement portions in the housing respectively.

Abstract: An electrical fuse assembly has a dielectric housing and a fuse terminal which is stamped and formed from metal stock having the appropriate electrical characteristics. The fuse terminal has blade portions which are made from metal stock which has been folded over, to provide the blade portions with the strength characteristics required. Support members are also provided on the fuse terminal. The support members cooperate with cooperation surfaces to insure that the fuse terminal is properly positioned in the housing of the assembly. During the manufacture of fuse assembly a positioning bar extends between respective conductors. The positioning bar provides the structural support required to insure that the conductors are maintained in space relationship. After the conductors are partially inserted into the housing, a portion of the positioning bar is removed to provide a stop means which cooperates with the housing of the fuse assembly.

Abstract: An electrically tappable miniature fuse which includes a housing from which the first ends of a pair of parallel blade terminals extend for engaging the contact elements in a fuse box or panel and where in at least one of the blade terminals includes a second end which is freely accessible either within, or which extends from, the housing remote from the first end thereof so as to permit an electrical connector to be selectively engagable therewith.

Abstract: An automobile fuse (10) for use in extreme temperature conditions such as the engine compartment of an automobile. Fuse (10) is a blade-type fuse with loads (42, 44) on fusible element (40) providing time delay characteristics to match the insulation damage curves of small diameter automobile cable harnesses. The lower portions of terminals (20) and (30) have been selectively plated with silver. The outer housing (50) has been laser etched.

Abstract: Miniature plug-in fuses which include a first active pair of generally parallel blade contact elements which are connected by a first fuse link and a second spare pair of generally parallel blade contact elements which are oriented oppositely of the first pair of blade elements and are electrically insulated therefrom so that when the first fuse link is interrupted due to an overload in an electrical circuit, the plug-in fuse is reversed so that the second pair of blade contact elements and second fuse link provide a spare fuse of the same amperage rating.

Abstract: A fuse assembly having a casing, a fuse element made of an electrically conductive material having a low fusion point, and tab insertion sockets into which tab terminals are inserted and which are made of a highly resilient, electrically conductive material having a high fusion point, the fuse element and the tab insertion socket being combined with each other in the casing, the fuse element alone being replaced when blown at a relatively low level of heat generation.

Abstract: An automotive blade-type fuse has an enlarged transparent extraction flange. The flange is configured as a thin-wall structure having a cavity therein running substantially its entire length. The fuse terminal blades are captively secured in a housing to extend from the bottom thereof and have narrow extensions at the outer edges of the blades which extend upwardly into the flange cavity. A fuse link extends between the blade extensions within the cavity and at a stand-off distance from the interior walls of the cavity. The fuse housing is preferably of identical half-shell construction having lengthwise-running centering ribs and associated mating recesses to facilitate assembly.

Abstract: A plug-in fuse assembly comprises a housing made of insulating material and having relatively closely spaced vertical side walls bridges by vertical end walls and a metal plug-in fuse element having laterally spaced, generally parallel confronting terminals at the bottom thereof projecting downwardly from the bottom of said housing and upwardly extending current-carrying extensions of said terminals and a unique S-shaped fuse link extending between said current-carrying extensions. The S-shaped fuse link has about a 45.degree. angled upper and lower leg of at least about one-half the length of the central leg thereof and a width to thickness ratio of about 1/2 or less which maximizes its volume without the position contraints placed on the fuse link.

Abstract: A plug-in fuse assembly comprising a housing made of insulating material and includes upwardly extending side walls bridged by upwardly extending end walls, and a conductive plug-in fuse element secured in the housing. The conductive plug-in fuse element has parallel confronting terminals projecting downwardly from the bottom of the housing. The housing end and side walls uniquely have outermost vertical coplanar wall surfaces, preferably at the sides and top margins thereof, which are parallel to the housing sides involved and to the corresponding outermost vertical coplanar wall surfaces on the opposite end or side of the housing. The outermost vertical coplanar wall surfaces are adapted to engage the complementary outermost vertical wall surfaces of an identical plug-in fuse assembly placed with the identical end-to-end or side-by-side orientation besides it.

Abstract: A plug-in fuse assembly comprises a housing made of insulating material and having relatively closely spaced vertical side walls bridged by vertical end walls and a metal plug-in fuse element having laterally spaced, generally parallel confronting terminals at the bottom thereof projecting downwardly from the bottom of said housing and upwardly extending current-carrying extensions of said terminals and a unique S-shaped fuse link extending between said current-carrying extensions. The current-carrying extensions have upper vertical outer margins which are inwardly offset from a given point to the tops thereof with respect to the corresponding vertical outer margins of the plug-in fuse element below the same, to provide clearance spaces for the downward passage of the vertical end walls of the housing, so that the overall width of the fuse is not significantly increased, if at all, by the housing end walls.

Abstract: The fuse block assembly has a block which holds an element of substantially inverted U-shape. Co-operating projections and holes or recesses hold the element in position in the block. The ends of the legs of the element project out of the block to act as blade-type electrical terminals. The legs are joined to each other by a fusible portion which acts as the fuse. The plane of the terminals is transverse to the plane of the U. This configuration is stronger than a configuration in which the plane of the terminals lies in the plane of the U. It can be made by bending a flat strip into a U which is less wasteful of materials than cutting out the space between the legs.

Abstract: A blade fuse includes parallel blades (12 and 14) secured in a body (16). A fusible link (42) welded to the blades is located in a cavity (20) of the body that is covered by a window (61). The blade fuses are assembled by blanking the fusible element from a ribbon (90) and translating it into a fuse subassembly (64). Tabs (50 and 52) secure the fusible element in the subassembly (64) until it is spot welded to blades 12 and 14. The window (61) is then blanked and translated to cover cavity (20) and secured by ultrasonic welding. A connector strip (76) is then blanked from between blades (12 and 14) to provide the blade fuse.

Abstract: A plug-in fuse assembly comprises a one-piece fuse element secured to a housing and having tubular terminal prong portions adapted for insertion into receptacle terminals. The terminal prong portions have retaining means cooperating with locking means formed in the housing for fixedly securing the terminal prong portions to the housing. A fuse link portion of the fuse element extends transversely between the terminal prong portions and is enclosed by the housing. The fuse element is made by punching from a flat sheet of fuse metal a flat blank comprising two laterally spaced and longitudinally extending prong members interconnected at their inner lateral edges by a link member having a non-rectilinear configuration, and then elongating the link member by flexing it from its non-rectilinear configuration to define the fuse link portion while shaping the prong members into tubular form to define the terminal prong portions.

Abstract: A plug-in fuse element comprises a one-piece plate-like body of fuse metal which forms parallel terminal blade portions having current-carrying extensions connected by a fuse link portion. For high current rated fuses, the fuse link portion extends between the current-carrying extensions at points much closer to the terminal blade portions than to the outer ends of the current-carrying extensions. An insulating body, preferably forming a housing, is rigidly anchored between the current-carrying extensions. The insulating body is preferably staked to the current-carrying extensions of the plug-in fuse element, there being anchoring apertures provided in the current-carrying extensions for the staking projections produced thereby. The anchoring apertures are located in the current-carrying extensions beyond the point where the fuse link portion joins the current-carrying extensions.

Abstract: A method for making a plug-in fuse assembly like that disclosed and claimed in U.S. Pat. No. 3,909,767, granted Sept. 30, 1975 for Miniature Plug-In Fuse having different desired fuse ratings. The method comprises the steps of providing a strip of fuse metal which is initially preferably provided throughout its length with a continuous longitudinally extending portion of reduced thickness having a fixed thickness dimension and from which fuse link portions of fuse elements are to be stamped. Various selected areas of the strip, those which preferably are not the portions of reduced thickness and from which the terminal portions of the fuses are to be formed, are covered with a non-oxidizable conductive coating, preferably tin plating.

Abstract: A method comprises the steps of providing a blank containing a pair of laterally spaced coplanar terminal forming blade portions which are interconnected by a transverse rigid web, coplanar current carrying extensions thereof and an interconnecting relatively fragile fuse-forming link inserting around the blank a housing made of insulating material with the current carrying extensions of the blank and the interconnecting fuse-forming link preferably within the housing and with the pair of terminal blade portions of the blank and the transverse web on the outside of the housing, securing said blank to the housing so the housing rigidly interconnects and supports the current carrying extensions, and blanking the exposed transverse web interconnecting the terminal blade portions.

Abstract: A method comprises the steps of providing a blank containing a pair of laterally spaced coplanar terminal forming blade portions which are interconnected by a transverse rigid web, coplanar current carrying extensions thereof and an interconnecting relatively fragile fuse-forming link, inserting around the blank a housing made of insulating material with the current carrying extensions of the blank and the interconnecting fuse-forming link preferably within the housing and with the pair of terminal blade portions of the blank and the transverse web on the outside of the housing, securing said blank to the housing so the housing rigidly interconnects and supports the current carrying extensions, and blanking the exposed transverse web interconnecting the terminal blade portions.

Abstract: A method is disclosed for making a plug-in fuse assembly like that disclosed and claimed in U.S. Pat. No. 3,909,767, granted Sept. 30, 1975 for Miniature Plug-In Fuse and having different desired fuse ratings. The method comprises the steps of providing a blank of fuse metal which is initially provided throughout its length with a continuous central portion of reduced thickness having a fixed thickness dimension for making fuses of a variety of fuse ratings, and blanking the blank of fuse metal to contain a pair of laterally spaced coplanar terminal forming blade portions which are interconnected by a transverse web of reduced thickness having a fixed thickness dimension, coplanar current carrying extensions thereof and an interconnecting fuse-forming link portion of reduced thickness having a fixed thickness dimension located in a coplanar platelike body of a plug-in fuse element.

Abstract: A method is disclosed for making a plug-in fuse assembly like that disclosed and claimed in U.S. Pat. No. 3,909,767, granted Sept. 30, 1975 for Miniature Plug-In Fuse.

Abstract: An electrical connector plug comprising a body containing first electrical connector elements adapted for electrical connection with an electrical device and second electrical connector elements adapted for electrical connection with an electrical power source. Electrical fuses are replacably mounted in a carrier casing which is pivotably moveable between a first operative position in which the fuses electrically connect the first and second connector elements and a second inoperative position in which the first and second connector elements are disconnected and the fuses are accessible for removal and replacement. The carrier casing can carry replacement fuses.