Housing, Casing Or Support Means Patents (Class 337/186)
  • Publication number: 20030218528
    Abstract: A current-limiting device is provided that defines a cavity of predetermined dimensions and an elongated circuitous path through the cavity. The device also includes provisions for supporting a current-limiting fusible element along the path. The cavity is filled with a pulverulent arc-quenching filler material. To increase the heat-withstand capabilities of the current-limiting device, heat withstand facilities are provided between the portions of the circuitous path to maximize the length of the path while minimizing the corresponding volume of the device, e.g. via heat resistant materials, the addition of heat shielding materials to the cavity-defining device structure or the structure of support portions of the cavity-defining structure. In one specific arrangement, the path of the fusible element is defined by one or more U-shaped sections. The fusible element includes a configuration of steps or bends along its length to maximize the path length of the fusible element.
    Type: Application
    Filed: October 9, 2002
    Publication date: November 27, 2003
    Inventors: Mark W. Stavnes, Glenn R. Borchardt, Jorge R. Montante, Raymond P. O'Leary, Martin A. Warszawa
  • Publication number: 20030201867
    Abstract: A fuse holder comprising: a housing defining an enclosed region, the housing comprises a base and a cover, the base and cover adapted to accept differently configured cage holders within the enclosed region; a pair of contacts within the housing at opposite ends of the enclosed region and spaced to engage terminals on ends of a fuse; and a first cage holder and second cage holder configured to fit within in the housing, each cage holder of the first and second cage holders includes either a single pole cage or a plurality of pole cages.
    Type: Application
    Filed: April 26, 2002
    Publication date: October 30, 2003
    Inventors: Madhu Sudan, Javier Gomez Martin, Jorge Vallejo, Anilkumar Dinker Pandit
  • Publication number: 20030189479
    Abstract: An improved fuse housing includes a main body and a cover and is configured to receive a fuse. The main body includes a plurality of fins that are configured to increase the surface area of the fuse housing in order to enhance heat dissipation. The main body is formed with a cavity for the fuse and a pair of conductors extending between the interior of the fuse housing and the exterior thereof for connection with the fuse. The cavity is configured to minimize the quantity of air between the fuse and the fuse housing to facilitates heat transfer. Each conductor includes excess studs for connection with the fuse to enhance heat conduction from the fuse. The cover is fastened to the main body with sufficient fasteners to permit the cover to be a stressed member to resist fracturing of the fuse housing from magnetic and other forces from the conductors.
    Type: Application
    Filed: April 8, 2002
    Publication date: October 9, 2003
    Inventors: Steven E. Meiners, Arthur J. Jur, Stephen W. Oneufers, Douglas M. Brandt
  • 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: 6593842
    Abstract: An insulator assembly for a polymeric cutout assembly has a core with first and second ends and an outer surface. First and second end caps are attached at the first and second core ends. The end caps have outer surfaces. A sleeve is disposed on the outer surface of the core. A projection extends laterally outwardly from an outer surface of the sleeve. An insulator is molded around the outer surface of the core, the sleeve and the first and second end caps. A center pin is attached to the projection to secure the cutout assembly to a support.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: July 15, 2003
    Assignee: Hubbell Incorporated
    Inventors: Jason R. Haynam, John A. Roche, John A. Krause, Mike J. O'Laughlin, Hester Mae McEuen
  • Patent number: 6587028
    Abstract: A fused disconnect switch assembly includes a switch housing assembly and a pull out fuse assembly. The switch housing assembly includes a housing defining a fuse receptacle, first and second terminal contacts within the housing and located adjacent the fuse receptacle, and an alarm terminal extending from the fuse receptacle to an exterior of the fuse housing. The pull out fuse assembly includes a housing, a line side terminal extending from the housing, a load side terminal extending from the housing, and a primary fuse having first and second conductive end caps. The fuse end caps are coupled to respective line side and load side terminals of the pull out fuse assembly housing, and the first and second terminal contacts of the switch housing assembly receive the load side and the line side terminal blades of the pull out fuse assembly.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: July 1, 2003
    Assignee: Cooper Technologies Company
    Inventors: Ronald Emil Mollet, Brian Corey Hall
  • Patent number: 6585541
    Abstract: An electrical connection box with a plurality of housings including those for a dark current provided therein. The fuse housing 4 for a dark current comprises a connecting portion 4a to which a fuse for a dark current is electrically connected, and an accommodating portion 4b in which the fuses for a dark current are accommodated.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: July 1, 2003
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Yasushi Higashida, Tomotaka Watanabe, Kazuo Miyajima
  • 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: 6566599
    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: December 1, 2000
    Date of Patent: May 20, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tatsuya Sumida, Shunji Taga
  • Patent number: 6556122
    Abstract: A thermal fuse reduced in size and thickness can be obtained. Further, the thermal fuse will not be degraded in characteristics, productivity, reliability, quality, etc. even after reduction in size and thickness. The thermal fuse includes a fuse main body including a substrate, a fusible metal and a cover, and paired terminals disposed protruding from the fuse main body. The other end of the first terminal has a first fusible metal connection, and the other end of the second terminal has a second fusible metal connection. The fusible metal is disposed between the first terminal and the second terminal, and one end of the fusible metal is connected to the first fusible metal connection, and the other end of the fusible metal is connected to the second fusible metal connection. The cover is disposed so as to cover the fusible metal, the first fusible metal connection, and the second fusible metal connection.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: April 29, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masatoshi Izaki, Takahiro Mukai, Shinichi Ohtsuka, Kenzo Isozaki
  • Patent number: 6556121
    Abstract: A fuse assembly which can securely halt an electric power supply to a load after a blowout of a fuse element in the fuse assembly is provided. The fuse assembly 1 has a pair of terminals 2, a housing 4 and a fuse element 5. Ends 3a of the terminals 2 are received into the housing 4. A pair of the terminals 2 and the fuse element 5 are formed integrally with each other. The fuse element 5 has a pair of supporting parts 39 and the central part 40. The supporting part 39 has a first extended part 41 connected to an end surface 8 of the terminal 2. The central part 40 connects a pair of the supporting parts 39 with each other and is situated at the center between a pair of the terminals 2. A thickness T2 of the fuse element 5 at the central part 40 is formed smaller than a thickness T1 of the fuse element 5 at the first extended part 41.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: April 29, 2003
    Assignee: Yazaki Corporation
    Inventors: Takayoshi Endo, Goro Nakamura, Hiroki Kondo, Takahiro Sato
  • Publication number: 20030071711
    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: Application
    Filed: January 25, 2002
    Publication date: April 17, 2003
    Inventors: Martin Haupt, Herbert Labitzke, Walter Csicser, Klaus-Uwe Mittelstaedt, Holger Scholzen, Karl-Otto Heinz, Holger Haussmann, Henning Stilke
  • Patent number: 6542063
    Abstract: A pair of electrodes are provided through a base. A cap and the base constitute a chamber, and are connected to each other by fitting projections provided on the base, into locking grooves formed in the cap. A fuse element is connected to upper portions of the electrodes, located in the chamber, by appropriate means such as soldering or welding. The base is in the form of a rectangle having long sides and short sides. A pair of semi-elliptic air pass holes are formed in substantially central portions of the base along the respective long sides, and opposed to each other.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 1, 2003
    Assignee: Nippon Seisne Cable, Ltd.
    Inventors: Kaoru Kawashima, Yoshihisa Tada, Wataru Ishii, Takahiro Matsuda
  • 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: 6522234
    Abstract: A plug-in fuse 200 comprises a body 201 with side indented portions 203 which allow secure gripping by the thumb and finger of a hand. The side indented portions define upper and lower extended portions 319, 321 allowing insertion and retraction forces to be exerted on the fuse. The improved body shape allows quick and easy insertion of the fuse in high-density fuse holders. A temperature-responsive material 323 in close proximity to the burnout portion of the fuse element provides visual and/or tactile indication of fuse condition.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: February 18, 2003
    Inventor: Edward G. Sturgill
  • Publication number: 20030020589
    Abstract: A fuse comprises a housing assembly, at least one primary fuse link extending within the housing assembly, at least a pair of fuse terminals connected to the primary fuse link and extending from the housing assembly, and a retractable handle assembly coupled to the housing assembly. The handle assists in removal of the fuse from a switch housing assembly.
    Type: Application
    Filed: September 25, 2002
    Publication date: January 30, 2003
    Inventor: B. Heath Scoggin
  • Patent number: 6504468
    Abstract: A method for highly reliable and durable electrical power distribution and a fusing block assembly for distribution of large electric currents to electricity-consuming devices. The invention is a machined block (10) of conductive material into which threaded connectors (20) for input wires are affixed through the use of slip-joint ferrules (23) which allow the connectors (20) to be tightened securely to block (10) without twisting the wires. Threaded output connectors (30) hold fuses (70) which are joined to output wire connector assemblies (40). The output wire connector assemblies (40) also include slip-joint ferrules (51) which allow the connectors (40) to be tightened securely without twisting the wires.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: January 7, 2003
    Assignee: Monster Cable Products, Inc.
    Inventors: Kendrew Lee, Noel Lee, Rusty Everett
  • Publication number: 20020190837
    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.
    Type: Application
    Filed: June 5, 2001
    Publication date: December 19, 2002
    Inventors: Varinder K. Kalra, Keith A. Spalding, Conrad M. Reeder
  • Patent number: 6486766
    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.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: November 26, 2002
    Assignee: Littlefuse, Inc.
    Inventors: Carl S. Reid, Seibang Oh
  • Patent number: 6483417
    Abstract: A bottom contact assembly for push-in connection with a line wire includes a bottom contact, a spring element and a spacer element. The bottom contact includes a base portion with gripping teeth for push-in connection of the line wire, and a rounded channel portion for engaging an end cap of a fuse element member. Positioning tabs extending from the base portion facilitate positioning of the base portion within the spacer element. The bottom contact assembly may be pre-assembled and inserted into an integral fuseholder body to reduce manufacturing costs.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: November 19, 2002
    Assignee: Cooper Technologies Company
    Inventors: David Allen Guthrie, Douglas Scott May, Nancy Darlene Amburgey
  • Patent number: 6459558
    Abstract: A power breaking device 20 includes a stationary box 21, a fuse carrying box 23 and a guide and restricting mechanism 25. The stationary box 21 consists of a fixed housing 26, a load-side bus bar 27 and a power-side bus bar 28. The fuse carrying box 23 consists of a carrying box body 60 detachable to the stationary box 21 and a fuse fixing part 61 for carrying a fuse 22. The mechanism 25 is constituted by slits 41, 41 formed in a partition wall 34. The partition wall 34 is formed integrally with the fixed housing 26 to define an accommodating part 39 in which the fuse 22 is accommodated and retained. When the fuse carrying box 26 is fitted to the stationary box 21, the slits 41, 41 serve to introduce both terminals 24, 24 of the fuse 22 to a power-connecting part and a load-connecting part of the stationary box 21 and also restrict the displacement of the terminals 24, 24.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: October 1, 2002
    Assignee: Yazaki Corporation
    Inventors: Shigemi Hashizawa, Hidehiko Kuboshima, Masayuki Karamatsu, Hitoshi Uesugi
  • Patent number: 6456187
    Abstract: A breaker apparatus comprises: a breaker switch including a pair of fixed electrodes standing upright on the breaker body, a plug detachably mounted on the breaker body, and a movable electrode provided on the plug for disconnecting and connecting between both fixed electrodes by being pulled out or pushed in to the both fixed electrodes; and a fuse mounted in parallel with the breaker switch, characterized in that a locking lever is pivotably mounted on one of the breaker body and the plug and the locking lever is pivoted to the locking position where the plug is locked in the fitted state, in that the breaker body is provided with a micro switch having a swinging strip for detecting whether or not the locking lever is pivoted to the locking position so that the micro switch is activated when the tip of the locking lever pivots along the length of the swinging strip and presses the swinging strip on the way to activate the micro switch, and in that the tip of the locking lever is formed so that the length is
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: September 24, 2002
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kazumoto Konda, Junji Muta, Tatsuya Sumitda, Yoshito Oka, Ichiaki Sano
  • Patent number: 6452474
    Abstract: The invention is a housing for a blade fuse, and a blade fuse that uses that housing. The housing includes a first generally planar wall and a second generally planar wall. The first and the second generally planar walls each have an outer surface and an inner surface, and the inner surface of the first generally planar wall faces the inner surface of the second generally planar wall. Each of the generally planar walls has at least one rib extending from its inner surfaces. The one or more rib on the inner surface of the first generally planar wall extends towards, and is generally aligned with, the one or more corresponding rib on the inner surface of the second generally planar wall. These generally aligned rib sets form a gap, and the gap is sized so as to permit the close-fitting insertion of a fuse element between that gap.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: September 17, 2002
    Assignee: Littelfuse, Inc.
    Inventor: Seibang Oh
  • 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
  • Publication number: 20020105407
    Abstract: A method for highly reliable and durable electrical power distribution and a fusing block assembly for distribution of large electric currents to electricity-consuming devices. The invention is a machined block (10) of conductive material into which threaded connectors (20) for input wires are affixed through the use of slip-joint ferrules (23) which allow the connectors (20) to be tightened securely to block (10) without twisting the wires. Threaded output connectors (30) hold fuses (70) which are joined to output wire connector assemblies (40). The output wire connector assemblies (40) also include slip-joint ferrules (51) which allow the connectors (40) to be tightened securely without twisting the wires.
    Type: Application
    Filed: January 4, 2001
    Publication date: August 8, 2002
    Inventors: Kendrew Lee, Noel Lee, Rusty Everett
  • Patent number: 6426867
    Abstract: A protection device for an electrical component that has a protective housing and a terminal cap. The protective housing has a base with a contact hole therethrough for accommodating an electrical terminal pin. A projecting perimeter wall extends from the base. Attached to the perimeter wall is an inwardly extending tapered rib. Each rib is tapered such that the end of each rib closest to the base surface extends from the perimeter wall further than the end of the rib furthest from the base surface. A terminal cap is placed within the perimeter wall and forced toward the base surface until the tapered ribs engage and are deformed by the terminal cap to provide an interference fit between the ribs and the terminal cap. A method of assembling a battery and an electrical component with such a protection device is also disclosed.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: July 30, 2002
    Assignee: Wilson Greatbatch, Ltd.
    Inventor: Robert Zayatz
  • Patent number: 6418005
    Abstract: The power circuit breaker has an igniter unit disposed in a cylindrical wall formed in a main housing. A holder is disposed in the cylindrical wall so as to oppose to the igniter unit. The holder has a boss engaged with the cylindrical wall, and a fuse element is held by the holder. Each end of the fuse element is electrically connected to one of a pair of interconnection terminals disposed in the main housing. The holder is locked by a locking lance formed in the main housing when each end of the fuse element has engaged with one of the interconnection terminals. The holder rests on the locking lance when the fuse element has been released from the interconnection terminals after activation of the igniter unit. The fuse element is engaged with and stopped by an insertion hole of the holder.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: July 9, 2002
    Assignee: Yazaki Corporation
    Inventors: Takayoshi Endo, Norio Matsumura, Goro Nakamura
  • Patent number: 6407656
    Abstract: In the breaker device, a pair of stationary electrodes 20, 21 are arranged on the front and the rear side of the protruding wall 18, that is, the pair of stationary electrodes 20, 21 are collected at one place. Therefore, the pair of stationary electrodes 20, 21 have a space round both the stationary electrodes in common. Accordingly, the size of the breaker device can be reduced. Further, when the radius of curvature of the continuity section 73 connecting the pinching pieces 71, 72 is made large, concentration of stress in the movable electrode 70 can be relieved. Therefore, the pinching forces of both the pinching pieces 71, 72 can be increased. Accordingly, it is possible to ensure a sufficiently high contact pressure between the movable electrode 70 and the stationary electrodes 20, 21.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: June 18, 2002
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kazumoto Konda, Junji Muta, Tatsuya Sumida, Yoshito Oka, Ichiaki Sano
  • Patent number: 6304429
    Abstract: The accessory mounting assembly for supporting a plurality of fuses for electrical distribution equipment has a mounting bracket having a mid-portion and top and bottom bent ends. A mounting board, for supporting at least one fuse, is attached to the mounting bracket. The mounting board has a series of notches in one end of the mounting board and a multiplicity of bolt holes at a distal end from at least one of the notches. This mounting board configuration provides a compact holding formation for fuses or lightning arresters.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: October 16, 2001
    Assignee: General Electric Company
    Inventors: Guillermo A. Locht, Ralph D. Keech, Louis Liu
  • Patent number: 6294978
    Abstract: A high-current fuse for vehicles is provided. This high-current fuse includes a conductive plate having a fuse and terminal connecting portions on both ends, and a resin case into which the conductive plate is insert-molded. A heat radiating portion for releasing heat generated from the fuse and the conductive plate when energized is provided on the outer surface of the resin case. The heat radiating portion is made up of a plurality of thin plates arranged on the resin case at regular intervals. The thin plates are situated in parallel with the energizing direction so as to strengthen the resin case. To keep the fuse away from both ends of the conductive plate, a pair of assisting plates facing to each other are formed in the middle of the conductive plate, and the fuse is disposed between the assisting plates. The fuse between the assisting plates is in the direction perpendicular to the energizing direction of the conductive plate.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: September 25, 2001
    Assignee: Yazaki Corporation
    Inventors: Takayoshi Endo, Norio Matsumura, Shigemitsu Inaba, Atsushi Hikage, Shinya Onoda
  • 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
  • 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: 6157287
    Abstract: A fuse system includes a fuse holder having an outer surface; a pair of fuse clips mounted inside the fuse holder, the pair of fuse clips being recessed from the outer surface of the fuse holder a predetermined distance; an insulative fuse housing; a fuse element mounted within the insulative fuse housing; blade terminals electrically connected to the fuse element and extending from the fuse housing; and an insulative sleeve on each of the blade terminals, the insulative sleeves extending from the fuse housing and covering a portion of each of the respective blade terminals and leaving a remaining portion of the blade terminals exposed; wherein the exposed portions of the blade terminals are less than the predetermined distance so that when the blade terminals make an electrical contact with the fuse clips, the exposed portions of the blade terminals are within the fuse holder and only the insulative sleeves are exposed.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: December 5, 2000
    Assignee: Cooper Technologies Company
    Inventors: Robert Stephen Douglass, Matthew Rain Darr, Daniel Eugene Rowton
  • 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: 6075435
    Abstract: A disconnect box is provided in the present invention that has a rear wall and perimetrically bounding side walls connected thereto. A line wire and a load wire are received in the disconnect box, which comprises a line terminal mounted in the disconnect box and to which the line wire is connected, a load terminal mounted in the disconnect box and to which the load wire is connected, and a fuse releasably secured in the disconnect box. The fuse has an operational position wherein the fuse contacts the line terminal and the load terminal thereby creating mechanical and electrical connection between the line wire and first load wire, and a non-operational position such that when the fuse is disconnected from the line terminal and the load terminal the mechanical and electrical connection between the line wire and the load wire is broken.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: June 13, 2000
    Assignee: Thomas & Betts International, Inc.
    Inventor: Walter Jeffcoat
  • 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: 6054915
    Abstract: A fuseblock is compact, and electrically conductive components of the fuseblock do not extend beyond a length of a fuse in the fuseblock. The fuseblock can be assembled easily and quickly without tools, and can be easily configured in different ways using the same components. The fuseblock can be snapped onto a mounting rail using mounting projections that are integral with the fuseblock. The fuseblock can include wire end connectors that each have two or more openings for receiving wire ends. The fuseblock also effectively conceals live electrical contacts from accidental touch when the fuseblock is closed and operational, and also when the fuseblock is opened to replace or inspect the fuse, thereby preventing a person servicing the fuseblock from accidentally receiving an electrical shock.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: April 25, 2000
    Assignee: Cooper Industries, Inc.
    Inventors: Daniel Eugene Rowton, David R. Marach, Sean V. Ciesielka
  • Patent number: 6046665
    Abstract: An improved cable assembly for electrical overload protection, the cable assembly having a first cable, a second cable, a fusible link, and a protective housing. The first and second cables have a protective covering and an end portion extending past the protective covering. The fusible link is located between the first and second cables such that the end portions of the cables are electrically connected to opposing ends of the fusible link. The protective housing encases a portion of the fusible link, with an intermediate section of the protective housing being spaced away from a portion of the fusible link to form a cavity. The protective housing also engages a portion of the first and second cables to form a rigid interconnecting housing around the fusible link and portions of the first and second cables.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: April 4, 2000
    Assignee: Littelfuse, Inc.
    Inventors: Seibang Oh, Demetrios Thanopoulos
  • Patent number: 5990439
    Abstract: A multiphase switch support base including a molded top cover and a molded bottom base each having interior and exterior walls which when assembled together, the base is divided into compartmentalized arc chambers which function to isolate each line contact and each load contact of each phase of the switch from each other as well as from each other line and each other load contact of each of the other phases of the switch.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: November 23, 1999
    Assignee: Siemens Energy & Automation, Inc.
    Inventor: Steven E. Pever
  • Patent number: 5982267
    Abstract: The present invention provides a fuse holder for supporting a plurality of fuses for electrical distribution equipment such as a distribution transformer. The fuse holder comprises a first end plate attached to a first distal end of the fuses; and a second end plate attached to a second distal end of the fuses. The first and second end plates have a plurality of relief cuts to permit an increased surface creep distance and are constructed of an electrically non-conductive material. A top plate, having wire routing openings for retaining wire bundles of the electrical distribution equipment, is attached to the top of the first and second end plates.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: November 9, 1999
    Assignee: General Electric Company
    Inventor: Guillermo Locht
  • Patent number: 5969587
    Abstract: An auxiliary switch for a circuit-breaker includes a casing containing at least one contact blade member mobile under the control of a pivoting and sliding actuator lever between a closed position and an open position. The actuator lever has a lateral actuator pin which projects out of the casing through a slot in the latter. The slot has a localized escape lobe away from its main part and which receives the actuator pin.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: October 19, 1999
    Assignees: Legrand, Legrand SNC
    Inventor: Christian Combas
  • 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: 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: 5883561
    Abstract: A secondary short preventing mechanism of a fuse is constituted by a pair of female terminal members in which male terminal receiving portions are formed at their longitudinally one ends respectively so that the male terminal receiving portions are to be engaged with and electrically connected to male terminal portions, and a fuse fusing portion is formed between their longitudinally other ends connected to each other; and a housing for housing the female terminal portions, and having a vertically extending insulation partition for horizontally separating the female terminal portions from each other. Each of the male terminal receiving portions has raised pressing contact portions which face each other at different levels, that is, at upper and lower positions in its longitudinal direction, the upper pressing contact portion being projected toward the insulation partition and having elasticity, respectively.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: March 16, 1999
    Assignee: Yazaki Corporation
    Inventors: Goro Nakamura, Kenji Muramatsu, Naoki Matsuoka
  • Patent number: 5883560
    Abstract: A fusible member of a fusible link element used as a large-current fuse comprises a sealed box-shaped structure having a pouring hole through an upper wall thereof. Molten tin is poured into this sealed box-shaped structure through the pouring hole, and is solidified to be integrated with the sealed box-shaped structure.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: March 16, 1999
    Assignee: Yazaki Corporation
    Inventors: Goro Nakamura, Kenji Muramatsu
  • Patent number: 5880666
    Abstract: A fuse 15 includes a housing 2 of an insulative resin having a lid 13 and a housing body 11, and a fuse body 1 having a melting portion formed between a pair of press-connecting terminals 4 and 5 arranged in a staggered manner, the fuse body being received in the housing 2. A sheathed wire is press-connected to and retained by the press-connecting terminals 4 and 5 of the fuse body 1, a portion of the sheathed wire, mounted between the press-connecting terminals 4 and 5, being cut, to thereby provide a fuse which has a simple construction, and can be easily mounted at an existing circuit, and also to provide a method of mounting such a fuse.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: March 9, 1999
    Assignee: Yazaki Corporation
    Inventors: Naoki Matsuoka, Kenji Muramatsu
  • Patent number: 5841337
    Abstract: A safety fuse system includes a safety fuse including a fuse casing having a bottom surface and opposing end surfaces at each end of the bottom surface; a fuse element inside the fuse casing; a pair of electrical contacts connected to the fuse element, the electrical contacts extending through openings in the bottom surface of the fuse casing to an exterior of the fuse casing; the openings being located at a distance from the opposing end surfaces so that the electrical contacts are remote from the opposing ends; a fuse holder including a fuse holder casing having a top surface, the top surface including apertures for receiving the electrical contacts of the safety fuse, the apertures being in alignment with the safety fuse openings when the safety fuse is engaged with the fuse holder; metal contacts within the fuse holder casing for receiving the electrical contacts.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: November 24, 1998
    Assignee: Cooper Technologies Company
    Inventor: Robert Stephen Douglass
  • Patent number: 5798683
    Abstract: An improved fuse plug is provided. The fuse plug includes a housing, a pair of first and second fuse chambers formed in opposite side of the housing, a first blade directly connected with a first cord, a second blade indirectly connected with a second cord via a cartridge fuse disposed in the first fuse chamber, a stand-in cartridge fuse reserved in the second fuse chamber and both the fuse chambers are closed by a pair of waterproof safety fuse doors. A sleeve member made in conforming with the housing is sleeved on the housing and a fuse pick which is made from flexible plastic wraps on the cartridge fuse for facilitating a ready removal of the fuses from the chambers.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: August 25, 1998
    Inventors: Mei-Mei Lin, Li-Wen Liu