Cartridge Or Tube Patents (Class 337/228)
  • Patent number: 11158478
    Abstract: A safety fuse for use in a motor vehicle includes which fuse comprises a first contact metal portion, a second contact metal portion and a melting metal section connecting the first contact portion to the second contact portion. The melting section is enclosed by a casing made from a non-conductive material and includes two hollow half-shells provided with mutual coupling elements, each half-shell having an inner surface facing the melting section and an outer surface facing outside of the fuse. At least one of the half-shells is provided on at least part of the inner surface of an alveolar structure with open cells in the direction of the melting section. The alveolar structure is formed by a plurality of walls protruding from the inner surface and intersected with each other.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: October 26, 2021
    Inventor: Bruno Betti
  • Patent number: 10957508
    Abstract: A recyclable fuse includes a first contact and a second contact, and a current control unit allowing current to flow by electrically connecting the first contact and the second contact with each other when a temperature of the current control unit is less than a predetermined first temperature and preventing the current from flowing by electrically interrupting the first contact and the second contact from each other when the temperature of the current control unit is equal to or more than the predetermined first temperature.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyuhwan Oh, Yeonsoon Choi, Sunwoo Yun, Young Ho Hwang
  • Patent number: 9148948
    Abstract: An electronic control device includes a substrate, component-mounted wires disposed on the substrate, electronic components mounted on the respective component-mounted wires, a common wire disposed on the substrate and coupled with each of the electronic components, and an interrupt wire coupled between one of the component-mounted wires and the common wire. The interrupt wire melts in accordance with heat generated by an overcurrent. The interrupt wire includes a first wire section and a second wire section shorter than the first wire section. The first wire section and the second wire section is coupled with each other at a predetermined angle that is determined so that one of the wire sections is coupled with the common wire and the other is coupled with the one of the component-mounted wires.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: September 29, 2015
    Assignees: DENSO CORPORATION, Murata Manufacturing Co., Ltd.
    Inventors: Ryoichi Shiraishi, Toru Itabashi, Takahiko Furuta, Yuuki Mikami, Hiroaki Nakamura, Shigeki Nishiyama
  • Patent number: 8629750
    Abstract: Fuse element and bridge assemblies include a length of fuse wire being wrapped around first and second end edges of a nonconductive bridge to define a winding around the nonconductive bridge element extending for at least one complete turn having a first linear segment and a second linear segment each extending entirely between the first end edge and the second end edge of the nonconductive bridge element. The winding of the fuse wire allows for construction of small fractional amp fuses with larger fuse element wires that are less prone to breakage in automated manufacturing processes.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: January 14, 2014
    Assignee: Cooper Technologies Company
    Inventor: Keith Allen Spalding
  • Patent number: 8629749
    Abstract: The fuse assembly contains a first casing member with a first chamber, and a second casing member with a second chamber. An enclosed space is thereby formed by joining the first and second casing members together. A disconnection member is sandwiched between the first and second casing members. The disconnection member contains two electrodes and a fuse element between the two electrodes. Each electrode contains a first lateral section, a vertical section, and a second lateral section, jointly and integrally forming a C-like shape. The electrodes are positioned at two opposing ends of the second casing member and the fuse element is housed in the enclosed space. The enclosed space allows the fuse element to break off completely, thereby avoiding electrical arc and achieving enhanced usage safety.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: January 14, 2014
    Inventor: Hung-Chih Chiu
  • Publication number: 20120255162
    Abstract: The present invention provides a temperature-sensitive pellet type thermal fuse, a manufacturing method of the temperature-sensitive pellet type thermal fuse and a mounting method of the temperature-sensitive pellet type thermal fuse which, when the fuse is mounted on a temperature control target object having a planar portion, can ensure a high heat response speed, can decrease the difference in a heat response time for every product, can ensure high operational reliability, reduces the number of parts, and can reduce a manufacturing cost.
    Type: Application
    Filed: June 23, 2010
    Publication date: October 11, 2012
    Applicant: The Hosho Corporation
    Inventor: Yukio Tamura
  • Publication number: 20120161919
    Abstract: A safety fuse holder assembly includes a retaining member. The retaining member is selectively configurable to retain the fuse in an interior space of a first fuse holder component such that the entirety of the fuse remains in the interior space when the first fuse holder component is removed from a second fuse holder component. The safety fuse holder may be IP 20 compliant.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 28, 2012
    Inventor: Patrick A. von zur Muehlen
  • Publication number: 20120133478
    Abstract: The fuse assembly contains a first casing member with a first chamber, and a second casing member with a second chamber. An enclosed space is thereby formed by joining the first and second casing members together. A disconnection member is sandwiched between the first and second casing members. The disconnection member contains two electrodes and a fuse element between the two electrodes. Each electrode contains a first lateral section, a vertical section, and a second lateral section, jointly and integrally forming a C-like shape. The electrodes are positioned at two opposing ends of the second casing member and the fuse element is housed in the enclosed space. The enclosed space allows the fuse element to break off completely, thereby avoiding electrical arc and achieving enhanced usage safety.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventor: HUNG-CHIH CHIU
  • Patent number: 8188627
    Abstract: A temperature protection device for a brushless DC Motor, wherein a thermal fusing type protector is provided at a depression formed on a casing of the plastic-packaged brushless DC Motor. In this way, the thermal fusing type protector can be provided conveniently at a position where the casing temperature is highest after plastic packaging, and if the protector is fused due to high temperature, it can be replaced easily.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: May 29, 2012
    Assignees: Panasonic Corporation, Panasonic Ecology Systems Guangdong Co., Ltd.
    Inventors: Decong Yang, Zewei Rao, Hanzhong Zhou, Zhengnan Zeng, Shufeng Shi, Hitoshi Taya
  • Patent number: 8169292
    Abstract: A high voltage fuse which includes at least one fuse terminal located at a distal end of the fuse housing. One face of the fuse terminal includes an elongated groove and an opposite face includes at least two elongated grooves. An aperture extends through the fuse terminal from the first face to the second face. The first face is adapted for use with an eyebolt connector component to attach a single conductor to be in direct contact with the fuse terminal. The second face is adapted for use with a parallel groove connector clamping component to attach a pair of conductors in direct contact with the fuse terminal. Alternatively, the grooves on the first and second faces may be provided on a single face of the fuse terminal. The fuse terminal may also serve the function of a spade connector. Thus, the fuse terminal provides improved versatility to allow a variety of connectors to be used therewith.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: May 1, 2012
    Assignee: Thomas & Betts International, Inc.
    Inventors: Dan Gardner, Gene Wood
  • Patent number: 8154376
    Abstract: A configuration for fuses and a method of manufacturing is disclosed. A fuse body is made with slots on the ends, allowing solder a greater surface area to grip the body and form an excellent bond. The slots communicate with a central cavity in the fuse body. The improvements relate primarily to surface mount fuses because of the great volume of such fuses in commerce, but may be applied to fuses of any size.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: April 10, 2012
    Assignee: Littelfuse, Inc.
    Inventors: Edwin Aberin, Edwin Silvederio, Jerico Caliboso, Albert Enriquez, Ronald Auza
  • Publication number: 20120068809
    Abstract: Fuse element and bridge assemblies allow for construction of small fractional amp fuses with larger fuse element wires that are less prone to breakage in automated manufacturing processes.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 22, 2012
    Inventor: Keith Allen Spalding
  • Patent number: 8035473
    Abstract: A mounting assembly couples a current limiting fuse to an element that defines a longitudinal axis. The mounting assembly includes a mounting member on the element; a first attachment member coupled to the mounting member in a fixed position relative to the mounting member; and a second attachment member coupleable to the current limiting fuse. The first and second attachment members are configured to be attached to one another in a plurality of discreet positions about an axis that is non-parallel to the longitudinal axis.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 11, 2011
    Assignee: Cooper Technologies Company
    Inventors: Frank J. Muench, Allen LeRoy Johnson, Gordon Thomas Borck, Russell John Lenz
  • Patent number: 7834738
    Abstract: A mounting assembly couples a current limiting fuse to an element that defines a longitudinal axis. The mounting assembly includes a mounting member on the element; a first attachment member coupled to the mounting member in a fixed position relative to the mounting member; and a second attachment member coupleable to the current limiting fuse. The first and second attachment members are configured to be attached to one another in a plurality of discreet positions about an axis that is non-parallel to the longitudinal axis.
    Type: Grant
    Filed: November 17, 2008
    Date of Patent: November 16, 2010
    Assignee: Cooper Technologies Company
    Inventors: Frank J. Muench, Jr., Allen LeRoy Johnson, Gordon Thomas Borck, Russell John Lenz
  • Publication number: 20100148914
    Abstract: Radial fuses for protecting an electrical circuit include a nonconductive base provided with inverted flat faces sloped obliquely relative to one another that define a wider receiving area for installation of a fuse element. Restricted freedom of movement of the fuse element is accomplished, and greater fuse reliability is ensured.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 17, 2010
    Inventors: Essie Rahdar, Seong Kook Kim
  • Patent number: 7570148
    Abstract: A low resistance fuse includes a fuse element layer, and first and second intermediate insulation layers extending on opposite sides of the fuse element layer and coupled thereto. The fuse element layer is formed on the first intermediate insulation layer and the second insulation layer is laminated to the fuse element layer.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: August 4, 2009
    Assignee: Cooper Technologies Company
    Inventors: Robert Parker, Joan L. Winnett Bender, Daniel M. Manoukian
  • Publication number: 20090179728
    Abstract: A blade fuse includes a first terminal includes an outer edge and an inner edge, the inner edge includes a first portion notched away from the inner edge beneath the first portion; a second terminal includes an outer edge and an inner edge, the inner edge include a second portion notched away from the inner edge beneath the second portion; an element extending from the first portion of the inner edge of the first terminal to the second portion of the inner edge of the second terminal; and a housing covering the element.
    Type: Application
    Filed: January 14, 2008
    Publication date: July 16, 2009
    Applicant: LITTELFUSE, INC.
    Inventors: Julio Urrea, James J. Beckert, Gary M. Bold, Seibang Oh, Juergen Scheele
  • Publication number: 20090027155
    Abstract: A small-sized fuse is provided that has a large breaking capability and is easy to manufacture. When a fusible element 18 melts and turns into metal vapor, arc discharge occurs in a large space 40 across which the fusible element 18 extends, of an inner space 26, and a pressure in the large space 40 rises instantaneously to an extremely large degree. Due to this pressure rise, the breaking member 24 moves from a position shown in FIG. 5A to a position shown in FIG. 5B. With the movement of the breaking member 24, the breaking member 24 closes instantaneously link holes 36 and 38 in a main body, whereby a flow of electrons is interrupted and the arc discharge is extinguished instantaneously.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 29, 2009
    Inventors: Hiroo Arikawa, Koh Ishimura
  • Patent number: 7477129
    Abstract: A housing for a current limiting fuse that includes a metal fuse element and a non-conductive filler material. The fuse element is configured to melt to create an open circuit when an applied current exceeds a threshold amount. The housing includes first and second cylindrical members. The first cylindrical member has an open end portion and the second cylindrical member has an integrally formed closed end portion and an open end portion configured to be attached to the open end portion of the first cylindrical member to close the housing. The housing also includes a fastening member configured to prevent the open end portion of the first cylindrical member from separating from the open end portion of the second cylindrical member when the fuse element melts.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: January 13, 2009
    Assignee: Cooper Technologies Company
    Inventors: Frank J. Muench, Jr., Allen LeRoy Johnson, Gordon Thomas Borck, Russell John Lenz
  • Patent number: 7436284
    Abstract: A low resistance fuse includes a polymer membrane, a fuse element layer formed on the polymer membrane, and first and second intermediate insulation layers extending on opposite sides of the fuse element layer and coupled thereto. At least one of the first and second intermediate insulation layers comprises an opening therethrough, and the polymer membrane supports the fuse element layer in the opening. A heat sink, heater elements, and arc quenching media may be used in combination with the fuse, and the fuse may be fabricated with an adhesive lamination process.
    Type: Grant
    Filed: January 29, 2004
    Date of Patent: October 14, 2008
    Assignee: Cooper Technologies Company
    Inventors: Joan Leslie Winnett Bender, Daniel Minas Manoukian
  • Patent number: 7385475
    Abstract: A low resistance fuse apparatus and methods of manufacture includes a first intermediate insulation layer, a second intermediate insulation layer, and a free standing fuse element layer independently formed and fabricated from each of the first and second intermediate insulation layers, The fuse element layer includes first and second contact pads and a fusible link extending therebetween. The first and second intermediate insulation layers extend on opposite sides of the free standing fuse element layer and are laminated together with the fuse element layer therebetween.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: June 10, 2008
    Assignee: Cooper Technologies Company
    Inventors: Joan Leslie Bender, Hundi Panduranga Kamath, Varinder Kumar Kalra, Daniel Minas Manoukian, Peter York So
  • Patent number: 7348872
    Abstract: A fuse having a plurality of configurable thermal ceilings. The fuse includes a housing, a first conductive cap, a second conductive cap, a plurality of conductive elements extending through the housing, and a conductive connector that is electrically coupled to a conductive element. One or more conductive elements are electrically connected to the first conductive cap at any one time.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: March 25, 2008
    Assignee: Eaton Corporation
    Inventors: Robert N. Parry, James J. Benke, Chad A. Eckhardt, Kenneth W. Sanner, Jianqiang Zhu
  • Patent number: 7320171
    Abstract: A fuse component (1) includes a hollow body (2) which is formed from a tubular wall that encloses an inner area (5) and which has two open faces that are situated opposite one another. The fuse component also includes a fuse-element (4) which extends inside the inner area (5) between both faces of the hollow body (2) and two contact caps (3) each provided with a bottom (7) and lateral walls (8) connected thereto. Two end section (10) of a conductor of the fuse-element (4) are led out of the inner area (5) through the faces and around the wall of the hollow body (2). The end sections (10) of the conductor of the fuse element (4) are fastened by an adhesive bond (11) so that the surfaces abutting the inner area (5) are essentially free from organic materials. The end sections (10) of the conductor are preferably fastened to a conductive plastic that, in turn, fastens the contact caps (3) to the outer wall (9) of the hollow body (2).
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: January 22, 2008
    Assignee: Wickmann-Werke GmbH
    Inventors: André Jöllenbeck, Frank Althoff, Karin Koch, Ute Lehnhardt
  • Patent number: 7250843
    Abstract: A fuse component (1) has a fusible conductor (2) which extends in a gas filled cavity (3) within a cylindrical tube (4) between two end surfaces (8). Two end caps (5) of an electrically conductive material are applied to the ends of the tube (4) so that an electrical contact is produced with the fusible conductor (2). At at least one of the two ends of the tube (4), a sealing body of a plastic material, which is predominantly elastically compressible but at the same time capable of creep, is introduced into a gap between the base of the end cap and the end surface (8) of the tube (4) and into a portion of the cavity adjacent to the cap base. The sealing body has been compressed between the end surface (8) and the cap base during the manufacture of the fuse component (1) when positioning the end cap (5). The compressed sealing body (7) attempts to expand again, whereby it expands principally into the cavity (3).
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: July 31, 2007
    Assignee: Wickmann-Werke GmbH
    Inventors: Ludger Richter, Andreas Baus, André Jöllenbeck
  • Patent number: 6967560
    Abstract: A compact fuse (1) for an automobile is provided. The fuse is formed by a fuse element (2) and an insulative housing (3) having a cutaway portion (8). The fuse element includes two base plates (4) and a melting portion (5) connecting the base plates. The melting portion is accommodated in the housing and parts of the base plates are exposed from the housing. The length of the base plate is the sum of the length (A) of the melting portion in the longitudinal direction of the base plate, the length (B) of a notch (4c) in the longitudinal direction of the base plate, and the length (C) of a cover supporting portion in the longitudinal direction of the base plate.
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: November 22, 2005
    Assignee: Pacific Engineering Corp.
    Inventors: Hideki Andoh, Iwao Murakami
  • Patent number: 6798330
    Abstract: A miniature fuse of surface mount type having a stable pre-arcing time-current characteristic and a strong time lag characteristic The fuse is easy to produce, and provides a constant pre-arcing time. The main body of the fuse is of rectangular ceramic construction of split type. A fusible member (60) wound around a ceramic rod (58) and is rested on a recessed portion (62) of the lower ceramic casing (54). The end portion (76) of the fusible member (60) is engaged with the side surface of the casing. The upper ceramic casing (52) is laid on the lower casing, so that the caps (56) are fit onto the opposite ends of the main body. The end portion (76) of the fusible member (60) and the cap (56) are connected by welding. At the time of welding, projections (74) to be fit in the recessed portions (72) provided at the main body, is formed at the cap (56), so that the cap (56) can be fixed to the main body.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: September 28, 2004
    Assignee: SOC Corporation
    Inventors: Hiroo Arikawa, Koh Ishimura, Seiji Norisue
  • Publication number: 20040183646
    Abstract: A fuse element includes a fusible conductor which extends within a gas filled cavity in a cylindrical tube. The fuse element includes a cylindrical tube comprising, an electrical insulator between two end faces of the tube, two end caps of an electrically conductive material being applied to the two ends of the tube such that an electrical contact is produced with the fusible conductor. At least one respective sealing element is inserted in at least one of the two ends in a space between the cap base and the end face of the tube and/or into a portion of the cavity of the tube adjacent to the end face such that one or more pressure balancing passages remain between the gas filled cavity within the tube and the external surroundings of the fuse element. The one or more pressure balancing passages are of such small cross-section that changes in pressure in the cavity are balanced only very slowly.
    Type: Application
    Filed: February 26, 2004
    Publication date: September 23, 2004
    Inventors: Andre Jollenbeck, Uwe Roder, Andreas Baus, Frank Althoff, Werner Barz, Peter Possnicker
  • Patent number: 6778061
    Abstract: A fuse that can be made small while improving its breaking performance. An element 3 is securely held between the two lengthwise ends of a tubular fuse casing 2 and a pair of metal plates 4 having a melting point of more than 1000° C. The ends of the fuse casing 5 are respectively pushed into caps 5 so that the caps are fitted to the fuse casing 2 in such a manner as to cover the metal plates 4. The metal plates 4 protect the caps 5 from direct exposure to an arc discharge, which occurs when the element 3 fuses due to an overcurrent. Even if the fuse casing is made small, the metal plates 4 reliably interrupt overcurrent by absorbing the energy of an arc discharge.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: August 17, 2004
    Assignee: Daito Communication Apparatus Co., Ltd.
    Inventors: Mitsuhiko Nakano, Takeshi Sakai
  • 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
  • Patent number: 6642833
    Abstract: A high-voltage current-limiting fuse comprises an elongated housing, an auto-centering connector centrally located about the elongated axis of the housing, and an elongated fusible element attached to the connector and secured along the elongated axis of the housing by the connector. The auto-centering connector is located about the elongated axis of the housing by a surface near one end of the housing, and the elongated conductive fusible element is connected to the connector and contained within the housing. The auto-centering connector is connected to an end of the fusible element, and mechanically located but electrically insulated relative to the housing.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: November 4, 2003
    Assignee: General Electric Company
    Inventors: Radhakrishnan Ranjan, Eli Valle, Constance Moore Dotson, Arthur Thomas Ehmke, Cesar Eliut Lopez
  • Patent number: 6577222
    Abstract: A fuse is disclosed having terminal leads electrically connected by a fusible link, and insulated within a housing. The housing is preferably made from a material which burns cleanly and has improved ablative qualities to prevent accelerated arcing within the plasma generated by the housing during high energy periods. The desired material should have an arc resistance of about 60 to about 120 seconds, a CTI of about 250 to about 400 volts, an arc ignition resistance of greater than 120 arcs, an arc tracking rate of about 25 to about 80 millimeters per minute, and a hot wire ignition value of greater than 120 seconds. Such material being capable of increasing the voltage rating of a standard 32 volt fuse almost ten-fold to about 300 volts.
    Type: Grant
    Filed: March 30, 2000
    Date of Patent: June 10, 2003
    Assignee: Littelfuse, Inc.
    Inventors: David J. Krueger, Seibang Oh
  • Patent number: 6538550
    Abstract: A high current fuse includes a housing with electrically-conductive caps attached at opposite ends. At least two winding supports are positioned in the housing, extending between the caps, and spaced from one another. Each winding support is wound by at least one electrically-conductive element. These elements are electrically connected to the caps.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: March 25, 2003
    Assignee: McGraw-Edison Company
    Inventors: Frank John Muench, Jr., Gordon Thomas Borck, Allen Leroy Johnson
  • Patent number: 6459356
    Abstract: A subminiature time delay fuse device (300) that is capable of withstanding higher current ratings includes at least one time delay fuse (310) for receiving a power signal and for providing an open circuit when the power signal is determined to be excessive for a predetermined period of time. The subminiature time delay fuse device (300) has a high-temperature housing (320) that has a plurality of vent holes formed therein, and wherein the housing partially encloses at least one time delay fuse (310). There are two conductive terminals (305) with an upper end for mounting the time delay fuse (310) and a lower end for mating into a socket (235) on an electrical device, such as an amplifier (125).
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: October 1, 2002
    Assignee: Scientific-Atlanta, Inc.
    Inventors: Jonathon Dout, Doyle Dowd, Paul Rossetti
  • 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
  • Publication number: 20010028294
    Abstract: A fuse 1 includes a pair of terminals 2, a housing 4 and a fusible body 5. The one ends 3a of the terminals 2 are housed within the housing 4. The housing 4 includes a pair of end walls 12a, 12b, a pair of side walls 13a, 13b, a first partition wall 21 and a pair of second partition walls 22. The inner faces 15a, 15b of the pair of end walls 12a, 12b are opposite to each other in a direction orthogonal to the direction of arranging the terminals in parallel and extend along the end faces of the terminals. The inner faces 16a, 16b of the side walls 13a, 13b are opposite to each other in a direction of arranging the terminals in parallel. The first partition wall 21 is located between the pair of terminals 2. The pair of second partition walls 22 are located between the first partition wall and the inner faces 16a, 16b, respectively.
    Type: Application
    Filed: March 20, 2001
    Publication date: October 11, 2001
    Applicant: Yazaki Corporation
    Inventors: Takayoshi Endo, Takahiro Sato, Hiroki Kondo, Norihiro Ohashi, Goro Nakamura
  • Patent number: 6194989
    Abstract: A fuse includes a tube, a pair of blade terminals projecting from opposite ends of the tube, at least one fuse element disposed in the tube and electrically coupled between the terminals, and a pair of metallic end caps disposed on opposite ends of the tube. Electrically insulative elements are disposed between the end caps and the terminals. The tube is filled with an arc-quenching material inserted through a fill hole that is plugged by a plastic drive rivet. Each terminal is attached to a metallic end plate by means of a staking tang inserted into a slot of the end plate, and by means of a separate solder joint. Each insulative element includes an axial sleeve through which a respective terminal extends for a part of its length. The fuse element comprises a one-piece metal element bent to form a pair of parallel, superimposed strips divided into sections by means of fusible weak points.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: February 27, 2001
    Assignee: Cooper Technologies Company
    Inventor: Robert S. Douglass
  • 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: 5994994
    Abstract: The present invention relates to a fuse for improving the reliability and facilitating automation the process and, in this fuse, an inner cap 14 is provided between a glass tube 12 and a cap terminal 13; a passage 22 for ventilating the inside of the glass tube 12 is provided between the inner cap 14 and the glass tube 12; an end portion 15a of the fuse element 15 is taken out between the cap terminal 13 and the inner cap 14 through an element insertion hole 14b formed on a bottom plate 14a of the inner cap 14 in order to electrically connect the end portion 15a with at least the cap terminal 13; and the cap terminal 13 is fixed to the inner cap 14.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: November 30, 1999
    Assignee: Kabushiki Kaisha Sinzetto
    Inventors: Hideo Ito, Tomohiro Shinzawa
  • Patent number: 5963123
    Abstract: A fuse includes a tube, a pair of blade terminals projecting from opposite ends of the tube, at least one fuse element disposed in the tube and electrically coupled between the terminals, and a pair of metallic end caps disposed on opposite ends of the tube. Electrically insulative elements are disposed between the end caps and the terminals. The tube is filled with an arc-quenching material inserted through a fill hole that is plugged by a plastic drive rivet. Each terminal is attached to a metallic end plate by means of a staking tang inserted into a slot of the end plate, and by means of a separate solder joint. Each insulative element includes an axial sleeve through which a respective terminal extends for a part of its length. The fuse element comprises a one-piece metal element bent to form a pair of parallel, superimposed strips divided into sections by means of fusible weak points.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: October 5, 1999
    Assignee: Cooper Technologies Company
    Inventor: Robert S. Douglass
  • Patent number: 5905426
    Abstract: A fuse includes a tube, a pair of blade terminals projecting from opposite ends of the tube, at least one fuse element disposed in the tube and electrically coupled between the terminals, and a pair of metallic end caps disposed on opposite ends of the tube. Electrically insulative elements are disposed between the end caps and the terminals. The tube is filled with an arc-quenching material inserted through a fill hole that is plugged by a plastic drive rivet. Each terminal is attached to a metallic end plate by means of a staking tang inserted into a slot of the end plate, and by means of a separate solder joint. Each insulative element includes an axial sleeve through which a respective terminal extends for a part of its length. The fuse element comprises a one-piece metal element bent to form a pair of parallel, superimposed strips divided into sections by means of fusible weak points.
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: May 18, 1999
    Assignee: Cooper Technologies Company
    Inventor: Robert S. Douglass
  • Patent number: 5903208
    Abstract: A fuse includes a solid silicone rod that has a fuse element stitched repeatedly through the rod so that the stitches extend longitudinally along the length of the rod. The stitched silicone rod is secured within a fiberglass tube, and a silica sand pulverant is provided around the stitched silicone rod so as to provide further arc quenching capability.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: May 11, 1999
    Assignee: Cooper Technologies Company
    Inventor: Hermann Sorger
  • 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: 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: 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: 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: 5235307
    Abstract: A solderless cartridge fuse comprises an open-ended insulating housing made of a relatively rigid, unyielding material. End caps close the open ends of the housing. Each end cap comprises an end wall confronting the adjacent housing end and a flexible yieldable side wall which, in its pre-formed state, has a lesser size than the periphery of the adjacent end of the housing so that there is a tight interference fit between the conductive end cap side wall and the housing periphery. A fuse element extends diagonally across the interior of the housing. Prior to application of the end caps to the housing ends during fuse assembly, the fuse wire ends are bent back around the housing ends so to be tightly sandwiched between the side walls of the end caps and the housing when the end caps are applied thereover.
    Type: Grant
    Filed: August 10, 1992
    Date of Patent: August 10, 1993
    Assignee: Littelfuse, Inc.
    Inventor: Seibang Oh
  • Patent number: 5166656
    Abstract: SMD fuses having consistent operating characteristics are fabricated by forming a repeating lithographic fuse element pattern on an insulative substrate, passivating the structure, bonding a protective glass plate over the passivation layer, slicing the assembly so formed, terminating the slices and cutting the slices into individual fuses. Fuses thus manufactured may be of any desired dimensions, including standard and non-standard chip sizes.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: November 24, 1992
    Assignee: AVX Corporation
    Inventors: Avner Badihi, Robert W. Franklin, Barry N. Breen
  • Patent number: 5142262
    Abstract: A slow blowing fuse includes an open-ended rigid housing defining a fuse element-containing space therein. Conductive end caps close off the ends of the housing and act as electric terminals for the fuse. A spiral wound fuse element in said space extends between the end caps. The spiral wound fuse element comprises a core of flexible material around which is spirally wound a fuse filament which is electrically connected to the end caps. The spiral wound fuse element is sandwiched between the end caps to provide a configuration where at least the central portion thereof is located adjacent to the housing walls.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: August 25, 1992
    Assignee: Littelfuse, Inc.
    Inventor: Daniel Onken