Abstract: A solderless surface mount fuse including a base having a floor and a plurality of adjoining sidewalls defining a cavity, a fuse element including a separation portion spanning between two electrode portions, the separation portion and the electrode portions formed of a contiguous piece of material, the separation portion suspended within the cavity below top edges of the sidewalls of the base, and a cap having a ceiling and a plurality of adjoining sidewalls, the cap fitting over the base and the fuse element with bottom edges of the sidewalls of the cap disposed below the top edges of the sidewalls of the base, wherein the cavity of the base contains a fuse filler that completely surrounds the separation portion.

Abstract: In an exemplary embodiment, a fuse body includes a first end, a second end and a bore extending therethrough for receiving a fuse element assembly. The bore includes a clearing portion having a first cross sectional area and a positioning portion having a second cross sectional area. The first cross sectional area is larger than the second cross sectional area. The positioning portion provides a receptacle for receiving the fuse element assembly and ensuring that the fuse element is substantially centered within the clearance portion.

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 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 fuse in which molten metal can be positively held or retained in a housing when a fuse element melts, and the melting of the fuse element can be easily confirmed. The fuse includes the fuse element including opposite side portions respectively defining a pair of metal terminals which are connected together through an element having a fusible portion, and are disposed in a generally common plane, and a flap of a metal material which is bendable at the boundary between the flap and the element, an insulating member being formed on at least one face of the flap; and a housing including opposite side portions respectively defining a pair of terminal receiving portions for respectively receiving the pair of terminals, and a central portion defining an element receiving portion for receiving the element, the element receiving portion having an open portion at its upper side. When the flap is bent, that face of the flap having the insulating member formed thereon is exposed to the exterior.

Abstract: A subminiature fuse is disclosed comprising two terminals, a substrate, a fusible conductor, and a unitary housing. The unitary housing is sealed and provides increased mechanical strength, thus reducing the risk of a catastrophic failure of the fuse. The upper portion of the fuse terminals are shaped into finger like projections adaptable to mechanically fastening the fusible conductor and the substrate thereto thus facilitating the manufacturing process. In one embodiment the fusible conductor and adjacent portions of the terminals and substrate are coated with a ceramic coating or adhesive. The housing is sealed by ultrasonic welding or preferably in an insert molded plastic enclosure which is substantially devoid of air.

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 fused plug constituting a safety lamp plug is provided for use with a light string set. A molded plastic body of the plug is formed of joined halves which define a first pair of compartments. Electrodes within such compartments define prongs extending from the body and blades within the body for receiving prongs of an add-on plug. Provided also within the molded body are a pair of compartments, each containing a safety lamp. Each safety lamp is a fuse lamp having a filament normally providing illumination but constituting a fusible element which melts upon current overload. The prong-defining electrodes are each interconnected with one lead of respective fuse lamp. The other lead of each fuse is interconnected with conductors for providing electrical power to the light string set. The fuse lamps are readily removable and illumination from them can be seen from outside the plug for determining their proper operation.

Abstract: A fuse protects a decorative string set of series-connected miniature incandescent lamps from current overload. The fuse comprises a fuse body insertable into a compartment of a fuse socket wherein electrical contacts are located. A fuse wire which is supported on the body includes a central wire portion mounted in a bore of the body, a pair of intermediate wire portions extending through passageways formed in the body, and a pair of exposed end wire portions bent rearwardly to engage the outer surface of the body. A keying stud and recess are respectively formed on the socket and body to reliably establish an electro-mechanical connection between the exposed end wire portions and the contacts upon insertion of the body into the socket. A fuse plug is inserted into the bore to thereby enclose the central wire portion.

Abstract: The present invention constitutes a fuse which comprises a glass envelope having a solid base portion; there being a lead-in conductor of Dumet metal projecting through the base and into the interior of the envelope. The inner end of the lead-in conductor is rigidly engaged to the inner end portion of a filament. The other end of the filament extends into the solid base and is therein fixedly joined to the inner end of a lead-out conductor formed of Dumet metal. The said conductors in their outer ends are suitably connected to terminals or posts in a base plug which supports the glass envelope.

Abstract: A subminiature fuse is disclosed comprising two terminals, a substrate, a fusible conductor, and a unitary housing. The unitary housing is sealed and provides increased mechanical strength, thus reducing the risk of a catastrophic failure of the fuse. The upper portion of the fuse terminals are shaped into finger like projections adaptable to mechanically fastening the fusible conductor and the substrate thereto thus facilitating the manufacturing process. In one embodiment the fusible conductor and adjacent portions of the terminals and substrate are coated with a ceramic coating or adhesive. The housing is sealed by utrasonic welding or preferably in an insert molded plastic enclosure which is substantially devoid of air.