Fuse Link Carrier Or Holder Patents (Class 337/227)
  • Patent number: 7378933
    Abstract: A fuse holder having at least two separate electrical paths may include a first hollow support containing a first fuse and a second hollow support containing a second fuse. The first hollow support may have first electrical connection devices, and the second hollow support may have second electrical connection devices. A support member may be coupled to the first hollow support and to the second hollow support. The support member, the first hollow support, and the second hollow support may be made of a non-conductive material.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: May 27, 2008
    Inventor: Jonathan Paige Rogers
  • Patent number: 7231708
    Abstract: In a method for marking a fuse in order to allow for the rapid visual identification of certain characteristics of that fuse, the fuse is provided with: a first color-coded visual indicia indicative of an amperage rating of the fuse; a second color-coded visual indicia indicative of an action value of the fuse; and/or a third color-coded visual indicia indicative of a voltage rating of the fuse.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: June 19, 2007
    Inventors: R. Dennis Chandler, Raymond Leblond
  • Patent number: 7176780
    Abstract: A fuse unit includes first and second fuse devices. Each of the fuse devices includes a attaching portion to be attached to a battery terminal of a battery, a housing provided on the attaching portion and having a cavity which is opened forward and backward of the housing, and a fuse body having a first end which is electrically connected to the battery terminal and a second end which is covered with the housing to form a wire connection part, the fuse body having a fusible portion which is disposed in the cavity. When the housings are superposed in a direction away from the battery, at least one of the housings and the fuse bodies are constructed so that the fusible portions are checked as viewed in a forward direction of the housings.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: February 13, 2007
    Assignee: Yazaki Corporation
    Inventor: Masashi Iwata
  • Publication number: 20040169578
    Abstract: A fuse component includes an electrically insulating substrate having a top surface, a thick film fuse element applied to the top surface and a cover layer. The cover layer is made of an electrically insulating material having good caloric conductivity. The cover layer can be directly applied to the thick film fuse element and the adjoining zones of the top surface of the substrate. The cover layer can contain a glass having a specific caloric conductivity of >2 W/mK. The cover layer can have a window disposed above a section of the fuse element, the section of the fuse element located within the window being at least partially covered by a solder containing layer.
    Type: Application
    Filed: April 16, 2004
    Publication date: September 2, 2004
    Inventors: Andre Jollenbeck, Uwe Roder, Andreas Baus
  • Patent number: 6696914
    Abstract: The invention relates to an electrical fuse for rotary current generators, having a rectifier assembly (14) for supplying a DC network, in particular in motor vehicles. To achieve simple, cost-effective and rapid-response fuse performance in the event of an overload, it is provided that a fuse element (21) be disposed in a line strand, carrying all the generator current, between the rectifier assembly (14) and a DC connection terminal (22) of the generator.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: February 24, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Martin Haupt, Herbert Labitzke, Walter Csicser, Klaus-Uwe Mittelstaedt, Holger Scholzen, Karl-Otto Heinz, Holger Haussmann, Henning Stilke
  • Publication number: 20030234716
    Abstract: A fuse assembly includes an insulation body, two conductors respectively mounted on two distal ends of the insulation body, a fuse extending between the two conductors, and an enclosure encapsulating the insulation body, the conductors and the fuse entire foregoing parts.
    Type: Application
    Filed: June 20, 2002
    Publication date: December 25, 2003
    Inventor: Chin-Chi Yang
  • Publication number: 20030222752
    Abstract: A housing body contains the fuse body therein. The fuse body is formed with an opening and a retaining projection arranged in the vicinity of the opening. A cover body is formed with a locking piece adapted to engage with the retaining projection so that the cover body closes the opening. A rigidity-reduced portion is formed in the cover body, so that the cover body can be flexed substantially without flexing the locking piece, at least when the locking piece engages with the retaining projection.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 4, 2003
    Applicant: YAZAKI CORPORATION
    Inventors: Norihiro Ohashi, Mitsuhiko Totsuka, Takuro Yamashita
  • Patent number: 6650223
    Abstract: The present invention relates to an electrical fuse element having an essentially ceramic housing which, in the unfired state, is closed around at least one fusible conductor. To improve the properties of such a fuse element with respect to the extremely high internal pressures occurring during switching off as well as when exposed to an arc, a fuse element (5) in which the fusible conductor (1) has an electrically conducting component, in particular a metallic wire (2), and an insulating, porous component is proposed.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: November 18, 2003
    Assignee: Wickmann-Werke GmbH
    Inventors: André Jöllenbeck, Barbara Marzinkowski, Peter Pössnicker
  • Publication number: 20030179070
    Abstract: A blade fuse holder configured to have a reduced overall height. The blade fuse holder has a housing that accommodates a pair of contacts. The pair of contacts each has a pair of opposing contact arms that extend from a base part. The pair of opposing contact arms each has a contact projection in a position corresponding to a cut-out formed in the base part so that a distal end of a blade fuse that has been inserted between the pair of opposing contact arms is received in the cut-out.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 25, 2003
    Inventor: Takeshi Izumi
  • Patent number: 6624356
    Abstract: An electrically conductive metal plate is stamped out to yield a fuse unit including an input terminal and several output terminals. The fuse unit further includes a predetermined locus where fuse element portions are to be formed later. A surface area of the fuse unit including the predetermined locus is then molded with an insulator material. Thereafter, the fuse element portions are formed at the predetermined locus by, for example, stamping. In this manner, the fuse unit can be manufactured easily at low costs, irrespective of the number and electrical capacity of the fuse element portions.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 23, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tatsuya Sumida, Shunji Taga
  • Patent number: 6608546
    Abstract: A 42V fuse and a fuse support used in an electric circuit of an automobile. The 42V fuse includes first and second terminals, a fuse line connecting the first and second terminals, and a housing. The fuse support has a pair of guide blocks. A groove extends through each block. The grooves enable the 42V fuse to be connected to the fuse support. Further, the grooves restrict the connection of a 14V fuse to the fuse support.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: August 19, 2003
    Assignee: Pacific Engineering Corp.
    Inventors: Hideki Andoh, Akihiko Shimizu
  • Patent number: 6580032
    Abstract: An electrically conductive metal plate is stamped out to yield a fuse unit including an input terminal and several output terminals. The fuse unit further includes a predetermined locus where fuse element portions are to be formed later. A surface area of the fuse unit including the predetermined locus is then molded with an insulator material. Thereafter, the fuse element portions are formed at the predetermined locus by, for example, stamping. In this manner, the fuse unit can be manufactured easily at low costs, irrespective of the number and electrical capacity of the fuse element portions.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: June 17, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tatsuya Sumida, Shunji Taga
  • Patent number: 6531949
    Abstract: A fuse 1 includes a pair of terminals 2, housing 4 and a fusible body 5. The one ends 3a of the terminals are housed in a housing chamber 20 of the housing 4. The housing 4 has a first inner wall 12a, a second inner wall 12b, a first partition wall 21 and second partition walls 22. The end face 8 of the one end 3a of each of the terminals 2 is located apart from the inner face 12a of the first end wall 21. The fusible body 5 couples the terminals with each other. Both ends of the fusible body 5 are mechanically connected to the end faces 8. The first partition wall 21 extends from the inner face 15a of the first end wall 12a toward the inner face 15b of the second inner wall 12b. The second partition walls 22 extend from the inner face 15b of the second inner wall 12b toward the inner face 15a of the first inner wall 12a.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: March 11, 2003
    Assignee: Yazaki Corporation
    Inventors: Takayoshi Endo, Hiroki Kondo, Norihiro Ohashi, Takahiro Sato, Goro Nakamura
  • Patent number: 6520804
    Abstract: A fuse box device is provided that includes a fuse box and a fuse unit contained therein. The fuse unit includes an input terminal directly connectable to a battery, several output terminals connectable to a wire harness, and several fuse element portions. One end of the fuse element portions is formed unitarily and in one piece with the input terminal, while the other end of the fuse element portions is formed unitarily and in one piece with the output terminals. The fuse unit is contained in the fuse box such that only the input terminal projects out of the fuse box. In such a construction, the fuse box device requires a reduced number of spare parts, so that production costs can be lowered. Moreover, the fuse box device is better suited to a miniaturization and less susceptible to assembly errors.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: February 18, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tatsuya Sumida, Shunji Taga
  • Patent number: 6448882
    Abstract: A large current fuse 21 which comprises a metallic fusing member 22 and a resin housing 23, the metallic fusing member 22 including a first conductive plate 25, a second conductive plate 26, and a fusing part 27, the resin housing 23 having an open space 49 through which the fusing part is exposed, the first conductive plate 25 being provided at its side face with a first projecting piece 31 projecting by way of an edge of the open space 49, the second conductive plate 26 being provided at its side face with the second projecting piece 37 projecting by way of the edge of the open space 49, a width D1 of the first projecting piece 31 in a direction perpendicular to its projecting direction and a width D2 of the second projecting piece 37 in a direction perpendicular to its projecting direction being of a fixed size, irrespective of the rated current. The large current fuse which does not require the respective molding dies exclusively according to the rated currents is provided.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: September 10, 2002
    Assignee: Yazaki Corporation
    Inventors: Shigemitsu Inaba, Norio Matsumura, Mitsuhiko Totsuka, Yasuko Hibayashi
  • Patent number: 6275135
    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.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: August 14, 2001
    Assignee: Yazaki Corporation
    Inventors: Yasuko Hibayashi, Norio Matsumura
  • Patent number: 6269745
    Abstract: The present invention relates to an electrical fuse element (1) which comprises at least one fusible conductor (3) and a carrier (2). The object is to provide a fuse element (1) for all known tripping characteristics in a cost-effective production technique for the middle and low-current range. Furthermore, by means of a small outer geometry, the fuse element (1) is to be adaptable to modem methods of insertion. The way in which this object is achieved according to the invention is that the carrier (2) consists of a material of poor thermal conduction, in particular of a glass ceramic.
    Type: Grant
    Filed: August 3, 1999
    Date of Patent: August 7, 2001
    Assignee: Wickmann-Werke GmbH
    Inventors: Ingeborg Cieplik, Bernd Fröchte, Manfred Rupalla
  • Publication number: 20010002812
    Abstract: An electrically conductive metal plate is stamped out to yield a fuse unit including an input terminal and several output terminals. The fuse unit further includes a predetermined locus where fuse element portions are to be formed later. A surface area of the fuse unit including the predetermined locus is then molded with an insulator material. Thereafter, the fuse element portions are formed at the predetermined locus by, for example, stamping. In this manner, the fuse unit can be manufactured easily at low costs, irrespective of the number and electrical capacity of the fuse element portions.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 7, 2001
    Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    Inventors: Tatsuya Sumida, Shunji Taga
  • Patent number: 6191678
    Abstract: A fuse includes a housing having first and second ends and an outer diameter of about 3 mm. The fuse further includes a nonconductive core arranged inside the housing and a fuse element wound spirally around the nonconductive core. An end cap is mounted on each of the first and second ends of the housing and each end of the fuse element is connected to a respective end cap. The fuse is rated at approximately 350 mA and 600 volts direct current and can withstand 100 pulses of 14 peak amps on {fraction (10/1000)} wave form without damage. The fuse element is wound on the nonconductive core at about 120 to 150 turns per inch, and the fuse element is a Cu/Ag wire having a diameter of about 0.002 inches.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: February 20, 2001
    Assignee: Cooper Industries, Inc.
    Inventor: Carl H. Edwards
  • Patent number: 6147585
    Abstract: A method for manufacturing a subminiature fuse includes the steps of applying metallized coatings to surfaces at axially opposite ends of a hollow fuse body, placing a fuse element in an internal cavity in the fuse body, the fuse element extending from the first end to the second end of the cavity, placing a one of a solder and brazing preform and end termination at each of the first and second ends of the cavity, and heating the assembled fuse body, fuse element, solder preforms and end terminations to a temperature sufficient to cause the solder preforms to bond the fuse element to the end terminations and for the end terminations to bond with the metallized end portions of the fuse body, wherein the end terminations close the ends of the cavity. A subminiature fuse according to the invention includes a fuse body with a fuse element disposed in the body. The fuse body includes metallized end portions to which the end terminations are bonded.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: November 14, 2000
    Assignee: Cooper Technologies Company
    Inventors: Varinder K. Kalra, Keith A. Spalding
  • Patent number: 6067004
    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.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: May 23, 2000
    Assignee: Yazaki Corporation
    Inventors: Yasuko Hibayashi, Norio Matsumura
  • Patent number: 5977860
    Abstract: A surface-mount fuse for protecting a circuit, which includes a substrate having first and second surfaces, each surface having first, second, third, and fourth ends, the substrate also having first, second, third, and fourth sides. The fuse includes a metal strip attached to the first surface of the substrate with a layer of adhesive material, the layer of adhesive material being disposed between the metal strip and the first surface of the substrate, the metal strip having a first connection region, a second connection region, and a non-linear fuse link therebetween. The fuse further includes first and second wire leads, the first wire lead being conductively connected to the first connection region and horizontally projecting away from the first connection region, the second wire lead being conductively connected to the second connection region and horizontally projecting away from the second connection region, for connecting the fuse to the remainder of the circuit.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: November 2, 1999
    Assignee: Littelfuse, Inc.
    Inventors: Steven Francis Ulm, Jr., Edwin James Harris, IV, Matthew Michael Rybka
  • Patent number: 5926084
    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.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: July 20, 1999
    Assignee: Wickmann-Werke GmbH
    Inventor: Bernd Frochte
  • Patent number: 5923239
    Abstract: A printed circuit board assembly comprising a printed circuit board having a plurality of conductive traces deposited on a surface thereof to define a plurality of electrical circuit geometries. A plurality of thin film fuses are deposited on the printed circuit board, each fuse providing circuit protection to one of the plurality of conductive traces.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: July 13, 1999
    Assignee: Littelfuse, Inc.
    Inventors: David J Krueger, Andrew J. Neuhalfen
  • Patent number: 5914648
    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.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: June 22, 1999
    Assignee: Caddock Electronics, Inc.
    Inventor: Richard E. Caddock, Jr.
  • Patent number: 5907559
    Abstract: A communications system is organized into a two or more levels of multiplexing modules. Each multiplexing module has a plurality of inputs from next level multiplexing modules, with the exception of the last level multiplexing modules. The last level multiplexing modules have a plurality of inputs from sensor modules outputting data. A default condition is set up to allow transmission of address information from the computer to all the multiplexing modules to allow the programming of each multiplexing module to select one of its inputs. At the appropriate time, timing circuitry in the multiplexing modules reverse the direction of communication of the multiplexing modules to allow a single sensor module to transmit its data to the computer, in accordance with the address information.
    Type: Grant
    Filed: November 9, 1995
    Date of Patent: May 25, 1999
    Assignees: The United States of America as represented by the Secretary of Agriculture, University of Florida
    Inventors: Dennis Shuman, Aharon Dagan
  • Patent number: 5901045
    Abstract: A device for isolating a hazardous connection on a circuit board includes an elongated enclosure having a bore extending therethrough and a slot extending longitudinally from a first end of the enclosure. A component such as a fuse, having leads on both ends, is advanced through the bore until one of the leads, bent orthogonally to the enclosure, becomes secured in a distal end (pocket) of the slot. The length of the enclosure is determined such that when the lead is engaged in the distal end of the slot, a portion of the enclosure extends over the lead to isolate any connections made by that lead from external contact. In a preferred embodiment, a second slot is provided on the other end of the enclosure wherein a second lead may then be bent orthogonally to the device, and parallel with the first lead, to isolate both leads of the component. The protective device is advantageously transparent to allow for monitoring of the component being isolated.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: May 4, 1999
    Assignee: Cabletron Systems, Inc.
    Inventors: Ernest Bencivenga, Ronald P. Fotino
  • Patent number: 5898358
    Abstract: Fuse comprising ceramic oxide fibers and vermiculite particulate.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: April 27, 1999
    Assignee: Minnesota Mining & Manufacturing
    Inventors: Thomas L. Tompkins, Margaret M. Vogel-Martin
  • Patent number: 5892427
    Abstract: A current limiting high voltage fuse wherein a hollow body 1 has conductive caps 2, 3 at either end and is filled with silica sand. A plurality of fusible strips 8 extend between the two caps. Each fusible strip has a low melting alloy spot 10. The locations of the spots are staggered and are positioned substantially one third of the way along a respective fusible strip. In an alternative construction, the fusible strips 13, 14 are wound around a pair of coaxial formers 11, 12, with the fusible strips 14 wound around the central former 12 having a smaller cross section than the fusible strips 13 wound around the outer former 11.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: April 6, 1999
    Assignee: Cooper Technologies Company
    Inventor: Harold John Handcock
  • Patent number: 5886612
    Abstract: A female fuse housing is provided for housing a fuse and includes a sidewall, a fuse insertion end, a terminal entry end, and a pliant partition. The sidewall has an inner surface and an exterior surface. The inner surface defines a fuse insertion area. The terminal entry end has first and second terminal sockets. The pliant partition is located within the fuse insertion area between the first terminal socket and the second terminal socket and substantially parallel to the longitudinal axis to define a first female receptor chamber and a second female receptor chamber.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: March 23, 1999
    Assignee: Littelfuse, Inc.
    Inventors: James J. Beckert, Seibang Oh, David M. Biggs, Sr.
  • Patent number: 5883562
    Abstract: There is disclosed an arcless fuse in which adverse effects on an equipment due to an arc discharge, produced when the fuse is melted, are prevented, and also melted metal is prevented from dissipating. An arcless fuse includes a fuse element 25 having opposite ends connected respectively to a pair of terminals 23 and 23, the fuse element being in the form of one of a wire and a strip. A part of the fuse element 25 intermediate the opposite ends thereof is formed into such a non-linear configuration that a plurality of portions are arranged in closely spaced relation to one another, and the fuse element 25 is molded in a housing 27 of a synthetic resin. Preferably, an amorphous resin is used as the synthetic resin molding the fuse element 25 therein.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: March 16, 1999
    Assignee: Yazaki Corporation
    Inventors: Naoki Matsuoka, Kenji Muramatsu
  • Patent number: 5880665
    Abstract: A holder (10) for a fuse (18) of the type typically used in automobile and marine applications. The fuse includes a fuse element encased within a generally rectilinear insulative fuse body (20), with a pair of parallel coplanar conductive blades (22, 24) in contact with opposite ends of the fuse element and extending out the fuse body. The holder is a unitary molded insulative plastic piece having a base member (12), a capture plate (14), and a cover member (16). The capture plate and cover member are hingedly secured to the base member on opposite sides thereof, with the capture plate adapted to overlie the base member and the cover member adapted to overlie the capture plate. The base member includes pockets with retention wings (50) for holding wire- terminating receptacles (28) and the capture plate locks the receptacles in place by means of blocks (62) extending into the pockets. The capture plate includes apertures (58, 60) aligned with the receptacles for receiving therethrough the fuse blades.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: March 9, 1999
    Assignee: The Whitaker Corporation
    Inventors: Gary Neil Yetter, Michael Scott Feher
  • Patent number: 5861793
    Abstract: A re-settable fuse is provided with a movable cartridge containing a plurality of fuse elements. When a fuse is blown, a replacement fuse element may be installed into a circuit by moving, rotating or otherwise altering the position of the cartridge such that a new fuse element is inserted between electrical contacts mounted within the interior of the housing of the fuse. The bottom of the housing is configured to conform to a standardized shape of a fuse so that it may be installed into ordinary fuse box. Within the housing is a conductor which connects the fuse and the fuse element with the circuit wired into the fuse box. This conductor is exposed at the bottom of the fuse for connecting with the circuit.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: January 19, 1999
    Inventor: Ken W. Hatton
  • Patent number: 5825274
    Abstract: A fusible link includes a housing which is made of insulating resin, the housing has an opening through which a fuse element is inserted into the housing, a fuse element having a pair of connecting terminal sections and a fusible body connected between the connecting terminal sections, and a lid of insulating resin which covers the opening of the housing while engaging with the housing. In the fusible link, the lid has resilient protruded pieces which are extended downwardly from the inner surface of the lid, and pressed against the fuse element so that the fused ends of the fuse element are away from each other when the fusible body is fused, thereby to positively prevent the occurrence of secondary short-circuiting of the fused ends.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: October 20, 1998
    Assignee: Yazaki Corporation
    Inventor: Mitsuhiko Totsuka
  • Patent number: 5818320
    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.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: October 6, 1998
    Assignee: Yazaki Corporation
    Inventor: Naoki Matsuoka
  • Patent number: 5812046
    Abstract: A method for manufacturing a subminiature fuse includes the steps of applying metallized coatings to surfaces at axially opposite ends of a hollow fuse body, placing a fuse element in an internal cavity in the fuse body, the fuse element extending from the first end to the second end of the cavity, placing a one of a solder and brazing preform and end termination at each of the first and second ends of the cavity, and heating the assembled fuse body, fuse element, solder preforms and end terminations to a temperature sufficient to cause the solder preforms to bond the fuse element to the end terminations and for the end terminations to bond with the metallized end portions of the fuse body, wherein the end terminations form hermetic seals closing the ends of the cavity. A subminiature fuse according to the invention includes a fuse body with a fuse element diagonally disposed in the body. The fuse body includes metallized end portions to which the end terminations are bonded.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: September 22, 1998
    Assignee: Cooper Technologies, Inc.
    Inventors: Russell Brown, Farid Ghaderi, Varinder K. Kalra, Keith A. Spalding, Joan L. Winnett, Stephen J. Whitney
  • Patent number: 5790007
    Abstract: A board fuse includes an insulating board having a through-hole window in the middle of the insulating board and fusible elements laid over the insulating board. Further, the fusible elements are continuous metal wires substantially equal in cross section. The fusible elements are uniform and accurate in cross section and accurate in current capacity. The fusible elements extend across the window in such a manner that, at the window, they are not in contact with the insulating board. Hence, when heat is generated in any one of the fusible elements by electric current, the heat generated at the window is not absorbed by the insulating board and is increased as required, thus blowing the fusible element accurately. Accordingly, the board fuse is free from the difficulties caused by the heat generation, that is, the production of a bad smell, at worst the production of white smoke.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: August 4, 1998
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Jun Yasukuni
  • Patent number: 5783985
    Abstract: The invention is a component for an electrical or electronic fuse. In one preferred embodiment of the invention, the component comprises a body of resilient, compressible material having a front face and a rear face. A fusible element is disposed within the body of resilient material, and the fusible element extends through a passageway within the body. At least one of the faces includes a flange section extending outwardly from that one face.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: July 21, 1998
    Assignee: Littelfuse, Inc.
    Inventors: Joseph W. Kowalik, Heraclio R. Gomez, G. Todd Dietsch
  • Patent number: 5781096
    Abstract: Separating walls are formed between adjacent grooves on the surface of a base. Circuits including fusible strips are mounted in the grooves. Thereafter, the separating walls are crushed so that they overlie the strips, retain them in the grooves, and protect them against foreign particles. Thus, if such a particle manages to impact a strip, no short-circuit will result, even if the strip should begin to peel.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: July 14, 1998
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Jun Yasukuni, Hidemi Tanigawa, Yutaka Furuno
  • Patent number: 5742221
    Abstract: An electric power disconnection apparatus for a microwave oven which is capable of simply disconnecting the electric power supply to the system when disassembling an outer casing from a frame of a microwave oven by attaching a fuse holder to the outer casing, which includes an outer casing covering the upper portion and both sides of a frame, a fuse holder having a fuse insertion groove formed in the lower portion of the fuse holder and fixed to the outer casing, with a fuse being detachably inserted into the fuse insertion groove, and a noise filter having a plurality of power terminals formed on the surface thereof and a pair of spaced-apart fuse contact members, with the noise filter serving to prevent a noise generated inside the frame, with the both ends of the fuse electrically contacting with the fuse contact portions of the fuse contact members.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: April 21, 1998
    Assignee: LG Electronics, Inc.
    Inventor: Yoon Gun Baeg
  • Patent number: 5739740
    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.
    Type: Grant
    Filed: February 28, 1996
    Date of Patent: April 14, 1998
    Assignee: Wickmann-Werke GmbH
    Inventors: Klaus Stark, Andre Jollenbeck
  • Patent number: 5736919
    Abstract: A spiral wound fuse includes an elongated housing, a supporting substrate formed of an electrically non-conducting, resiliently deformable, and flexible material, disposed in the housing, a fusible conductor wound around the supporting substrate and end caps mounted to the housing and connected to the conductor at the first and second ends of the supporting substrate. The fusible conductor may be impressed into the resiliently deformable substrate to form ridges of material between adjacent windings of the conductor. The ridges physically separate the windings and help to prevent arcing or bridging when the conductor melts to interrupt the circuit.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: April 7, 1998
    Assignee: Cooper Industries, Inc.
    Inventor: Conrad M. Reeder
  • Patent number: 5726620
    Abstract: A chip fuse is disclosed which includes a hollow insulating body and a fusible element extending through the body the respective ends thereof being engaged with end portions of the body. Two terminals are fitted onto the end portions of the body. Each terminal includes a projection for fixing the terminal to the end portion of the body. The body may include two grooves into which respective projections are fitted.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: March 10, 1998
    Assignee: SOC Corporation
    Inventor: Hiroo Arikawa
  • Patent number: 5699032
    Abstract: A surface-mount fuse for protecting a circuit, includes a substrate having first and second surfaces, each surface having first, second, third, and forth ends, the substrate also having first, second, third, and fourth sides. The fuse also includes a metal strip evenly attached to the first surface of the substrate with a layer of adhesive material, the layer of adhesive material being disposed between the metal strip and the first surface of the substrate, the metal strip having a first connection region, a second connection region, and a non-linear fuse link therebetween.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: December 16, 1997
    Assignee: Littelfuse, Inc.
    Inventors: Steven Francis Ulm, Jr., Edwin James Harris, IV, Matthew Michael Rybka
  • Patent number: 5668521
    Abstract: A female fuse assembly has a fuse housing, and first and second fuse-link terminals. Each fuse-link terminal includes a clip-receiving portion, and first and second clip abutments. The female fuse assembly also includes a fuse link connected between the first and second fuse-link terminals. The first and second female clips each include a clip body for operative engagement with the respective first and second fuse-link terminals. The first and second clips each also including first and second arm-connecting extensions, and first and second arms. The first and second arm-connecting extensions of the first clip are engaged with the respective first and second clip abutments of the first and second fuse-link terminals. The first and second arms of each first and second clip each have a first and a second branch.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: September 16, 1997
    Assignee: Littelfuse, Inc.
    Inventor: Seibang Oh
  • Patent number: 5659282
    Abstract: A cylindrical fuse holder assembled by uniting a molded holder body and a molded cap between which a fuse tube is steadily held by means of a socket movable axially in the holder, a coil spring for pressing the socket so as to bring the socket in contact with a side contact piece in the holder body, and another coil spring for pressing the fuse tube. The socket pressing spring for urging the socket is integrally connected to the fuse tube pressing spring. Thus, this fuse holder can be composed of a small number of parts, assure high stability of electrical connection, and be used in safety.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: August 19, 1997
    Assignee: SMK Co., Ltd.
    Inventor: Kazuhiro Nemoto
  • Patent number: 5631621
    Abstract: The thermal fuse comprises a fuse base having a wire fuse element of a fusible alloy connecting lead wires and a cartridge forming an enclosed space for accommodating the wire fuse element by surrounding the wire fuse element and closing both ends thereof at the lead wires. In this space, a sucker having a suction surface composed of an adhesive metal excellent in adhesion with the fusible alloy is disposed.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: May 20, 1997
    Inventor: Takuo Nakajima
  • Patent number: 5621375
    Abstract: A subminiature circuit protector includes an electrically insulating substrate, a layer of electrically conducting material on the top surface of the substrate, the electrically conducting layer having a narrow central part forming a fuse element, opposing end parts of the electrically conducting layer extending to end and lateral edges of the substrate, an electrically insulation cover over the fuse element and end parts, and end terminations formed over the end and a portion of the lateral surfaces of the substrate electrically connecting with the end parts.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: April 15, 1997
    Assignee: Cooper Industries
    Inventor: Leon Gurevich
  • Patent number: 5621602
    Abstract: A surge protector includes a housing having therein a wire wound resistor and a fuse separated by a partition wall. In one embodiment for use with high density information transmission, the resistor is of very low value and preferably is 5.6 ohms. The leads from the resistor and fuse are glued in position. The resistor wire is wound about a mandrel and is widely spaced to prevent arcing between adjacent coils of the resistor. A high temperature coating covers the resistor coils and mandrel effectively immobilizing the coils from movement in response to a magnetic field generated when high voltage is applied to the resistor. A cover closes the housing and conceals the components. The housing is empty of potting material.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: April 15, 1997
    Assignee: International Resistive Company, Inc.
    Inventor: Bernd D. Winkelmann
  • Patent number: 5617069
    Abstract: A microchip fuse is disclosed which includes a casing constructed from box-like upper and lower members. On the end surfaces of both members, electrode sections are provided which are formed by plating metal onto a sintered conductive paste on the end surfaces. Grooves are provided on the members and filled with insulating material. A fusible element extends through the insulating material and the inner surface as formed when the both members are jointed together. The end portions of the fusible element are soldered to the electrode sections. A hollow portion is provided in the casing adjacent to the inner space by way of a thin wall to dampen the pressure of a gas generated during the interruption process.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 1, 1997
    Assignee: Soc Corporation
    Inventors: Hiroo Arikawa, Akihiko Kanehara, Manabu Furusawa, Koh Ishimura