Cartridge Or Tube Structure Or Material Of Construction Patents (Class 337/246)
  • Patent number: 11462361
    Abstract: A capacitor assembly includes a capacitor having ends. A terminal covers less than an area of one end. A wire bond has opposing ends with one end being coupled to the terminal and is configured to break connection with a circuit when an electrical current through the wire bond reaches a fusing current. An energy storage module includes at least two capacitor assemblies. The wire bond of one capacitor is electrically connected to the second terminal of an adjacent capacitor. An energy storage assembly includes two energy storage modules stacked one on top of the other. A pulse forming network includes conductors and at least two energy storage modules. A method of making a module includes charging each of the capacitors, removing each capacitor that fails, connecting one end of a wire bond to one terminal and connecting the other end to an adjacent capacitor or to a conductor.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 4, 2022
    Assignee: Presidio Components, Inc.
    Inventor: Alan Devoe
  • Patent number: 10431411
    Abstract: The invention relates to a melting fuse, especially for a motor vehicle that has a high-voltage circuit, comprising an electrically insulating housing inside of which there is a fusible conductor that connects two contacts with each other, whereby, between two longitudinal areas that are adjacent to each other, the fusible conductor has a rotation point around which the longitudinal areas can be rotated in case of a thermo-mechanical expansion.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: October 1, 2019
    Assignee: PACIFIC ENGINEERING CORPORATION
    Inventors: Pedro Fernández, Jürgen Freytag, Sascha Schulte, Akihiko Shimizu, Hartung Wilstermann
  • Publication number: 20120019347
    Abstract: A fuse link auxiliary tube comprises at least one inner layer of paper, at least one layer of polymer film over the at least one inner layer of paper, and at least one outer layer of paper over the at least one layer of polymer film. The at least one inner layer of paper, the at least one layer of polymer film, and the at least one outer layer of paper are wound into a tube shape. An acrylate or acetate layer over the at least one outer layer of paper may be used to structurally reinforce the fuse link auxiliary tube. The paper may be high dielectric strength Kraft paper, fish paper, etc. The polymer film may be polyester film, e.g., MYLAR®.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 26, 2012
    Applicant: COOPER TECHNOLOGIES COMPANY
    Inventor: Gary Lee Goedde
  • Patent number: 7646282
    Abstract: An insulator for a cutout switch and fuse assembly used in connection with an electrical power grid, including a body including a first end and a second end, a guide connector, a conductor strip, and a tool structure is located, a pivot connector is located at the second end of the body, and a mounting connector is located on the body between the first end and the second end. In an alternative embodiment, universal connectors are located at the first end and the second end. The body is manufactured by a filament winding process.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: January 12, 2010
    Inventor: Jiri Pazdirek
  • Patent number: 7532103
    Abstract: The present invention relates to an electrical fuse cutout comprising: (i) an insulator having a composite body and at least two connectors, wherein a first connector couples the composite body to a fuse assembly and a second connector couples the body to a utility structure; (ii) a housing containing the composite body; and (iii) a fuse assembly.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: May 12, 2009
    Assignee: MacLean-Fogg Company
    Inventors: Victor Almgren, Scott Henricks, Michael J. Schomer
  • 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: 6952154
    Abstract: The present invention relates to an electrical fuse cutout comprising: (i) an insulator having a composite body and at least two connectors, wherein a first connector couples the composite body to a fuse assembly and a second connector couples the body to a utility structure; (ii) a housing containing the composite body; and (iii) a fuse assembly.
    Type: Grant
    Filed: June 16, 2002
    Date of Patent: October 4, 2005
    Assignee: MacLean-Fogg Company
    Inventors: Victor Almgren, Scott Henricks, Michael J. Schomer
  • 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
  • Patent number: 6774760
    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: Grant
    Filed: June 5, 2001
    Date of Patent: August 10, 2004
    Assignee: Cooper Technologies Company
    Inventors: Varinder K. Kalra, Keith A. Spalding, Conrad M. Reeder
  • 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: 5774037
    Abstract: A subminiature circuit protector includes a substrate carrying a metal fuse element hermetically sealed in a glass sleeve cartridge. The fuse element may comprise a film deposited on the substrate, or, alternatively a metal strip or wire. Leads extend from opposing ends of the sleeve for connection in a circuit, and a gas is sealed in the sleeve to provide a suitable environment to improve operating lifetime and interrupting capability. A method for making a circuit protector includes placing a substrate carrying a fuse element in a glass sleeve and placing leads in contact with the fuse element. The assembly is heated in the presence of a gas below atmospheric pressure to a temperature sufficient to soften the glass. The pressure is then increased to cause the ends of the glass sleeve to form a hermetic seal about the leads.
    Type: Grant
    Filed: October 7, 1996
    Date of Patent: June 30, 1998
    Assignee: Cooper Industries, Inc.
    Inventor: Leon Gurevich
  • Patent number: 5357234
    Abstract: A fuse that includes an insulating housing made from two housing pieces made of thermoplastic material, terminals extending through slots in the ends of the housing, and a fusible element having ends connected to both of the terminals. The housing includes a tubular portion and slotted end portions located at each of the two ends of the tubular portion. Each of the terminals has an internal portion inside the housing to which a fusible element is attached, an external portion outside of the housing, and a middle portion between the internal and external portions and located within one of the slots.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: October 18, 1994
    Assignee: Gould Electronics Inc.
    Inventors: Robert M. Pimpis, Richard J. Perreault, George F. Walker, Jr., David E. Suuronen, Edward J. Knapp, Jr.
  • Patent number: 5122774
    Abstract: A sub-miniature fuse for electrical protection includes an assembly of an outer tube and an inner tube made of insulating material. The inner tube has electrodes and a fusible metal link sputtered onto its outer surface. The assembly of inner and outer tubes is terminated electrically at its ends with axial leads, or with surface mounting pads, or with radial leads.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: June 16, 1992
    Assignee: Morrill Glasstek, Inc.
    Inventors: Vaughan Morrill, Jr., John H. Scandrett, David K. Hudson
  • Patent number: 5015514
    Abstract: Improved arc-suppressing fuse tubes of the type used in electrical cutouts is provided which includes a fluid epoxy resin matrix core designed, upon experiencing high temperature arcing conditions, to generate sufficient moisture and arc-suppressing gases to safely and efficiently interrupt an arc. The fuse tubes of the invention completely eliminate the use of expensive and difficult to fabricate bone fiber conventionally used in fuse tubes of this type. The preferred fuse tube construction is an integrated, synthetic resin body having an outer tubular shell including an epoxy fiberglass-reinforced synthetic resin matrix, together with an inner tubular arc-suppressing core having an epoxy resin matrix with respective quantities of an organic fiber and an inorganic filler therein. An anhydride curing agent for the epoxy is incorporated at an anhydride to epoxide ratio from about 1.0 to 1.4:1.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: May 14, 1991
    Assignee: A. B. Chance Company
    Inventor: William M. Rinehart
  • Patent number: 4963850
    Abstract: A fuse body encloses a fuse element of a current-limiting fuse wherein the fuse body is formed from an inexpensive material and provided with a shield between the inner surface of the fuse body and the fuse element. Thus, when the fuse element melts and arcs during interruption, the fuse body is protected from the hot gaseous arc products by the protective shield thereby preventing burning of the fuse body. The protective shield can be a spray coating such a ceramic spray coating applied to the inner surface of the fuse tube, a glass coating, or ceramic paper. The fuse body can be made from glass filament wound epoxy material.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: October 16, 1990
    Assignee: General Electric Company
    Inventors: Radhakrishnan Ranjan, William E. Lazenby
  • Patent number: 4947149
    Abstract: An electrical fuse including a fuse casing having a tubular wall including multiple-filament reinforcing yarns that have been braided in the tubular shape of the wall and a synthetic resin bonding the yarns together and impregnating the yarns, a pair of terminals secured to the ends of the fuse casing, and a fusible element inside the casing and connected to the terminals.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: August 7, 1990
    Assignee: Gould, Inc.
    Inventors: Robert M. Pimpis, Richard T. Oakes, Michael D. Ellery, Edward J. Knapp, Jr.
  • Patent number: 4855705
    Abstract: A high power current-limiting fuse comprises a cylindrical envelope which closely surrounds a metallic fusible element in the form of a wire or ribbon. The cylindrical envelope is made of high density rigid ceramic such as Alumina of formula Al.sub.2 O.sub.3, and Beryllium oxide of formula BeO. The two ends of the envelope are metallized to form two terminals respectively connected to the ends of the fusible element, whereby the current-limiting fuse is connectable to an electric circuit to be protected through the two so formed terminals. A sheath of fiberglass or ceramic can be mounted around the cylindrical envelope so as to increase the mechanical rigidity of the current-limiting fuse.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: August 8, 1989
    Assignee: Hydro-Quebec
    Inventors: Vojislav Narancic, Gilles Fecteau
  • Patent number: 4808963
    Abstract: A drawout fuseholder 10 is made, containing two electrically conductive contacts 11 and 12 and having an insulating tube 13 connected thereto and disposed therebetween, where the tube tube has a smooth, hard inner surface 15 and outer surface 16 of glass free cycloaliphatic epoxy resin and a central glass fiber member 14 impregnated with cycloaliphatic epoxy resin, where a metallic fuse element is connected to the contacts through the interior of the tube.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: February 28, 1989
    Assignee: Westinghouse Electric Corp.
    Inventors: Joseph M. Stunzi, James R. Sellers
  • Patent number: 4713645
    Abstract: A fiber reinforced composite composed of a scrim/mat. The scrim/mat includes a layer of fiber scrim to which is bonded a layer of fiber mat. This product can be formed into a tubular member such as a fuse tube. The tube is made by pultruding the scrim/mat.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: December 15, 1987
    Assignee: Monogram Industries, Inc.
    Inventor: Fereidoon Razavi
  • Patent number: 4703299
    Abstract: The high current interrupting fuse of the invention includes an envelope free of sand or similar arc quenching material. The envelope preferably has terminal end caps enclosing the ends of the envelope between which caps a fuse element extends. The envelope has an arc-quenching gas-releasing material at least at the inner surface of the envelope. Arc barrier plugs made of an ablative material surround each end of the fuse element which for ease of assembly freely pass through bores of plugs. The fuse element also preferably passes through metal plates externally of the plugs and adjacent to the end caps.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: October 27, 1987
    Assignee: Littelfuse-Tracor B.V.
    Inventor: Leendert Vermij
  • Patent number: 4646053
    Abstract: A fillerless electric fuse having a tubular casing with open ends is provided with a fusible element in the form of an extremely fine wire extending from one of the open ends to the other. The casing is provided with a pair of annular sections of reduced diameter at opposite ends thereof which receive a pair of metal contact rings having an outside diameter substantially the same as the outside diameter of the fuse casing. The fusible element extends through each of the open ends of the casing and is welded into electrically conductive relationship with the axially outwardly facing surfaces of the respective metal contact rings. End terminals are press fitted over each of the metal contact rings and are permanently secured to the fuse casing. Means are provided inside the fuse to establish an impermeable barrier of insulating material within the fuse casing around the fusible element and between the end caps.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: February 24, 1987
    Assignee: Gould Inc.
    Inventor: Jerry L. Mosesian
  • Patent number: 4564830
    Abstract: An expulsion type fuse cutout fuseholder structural assembly (10) including a fuse tube assembly (12) having a bone fiber liner (40) and a sleeve insert (36) coaxially disposed entirely interiorly within an insulative outer covering or wrapping (14). A rabbet joint is defined between the mated ends of the liner (40) and sleeve insert (36) by means of a counterbored portion (48) of the liner (40) and an axially projecting tubular portion (44) of the sleeve insert (36). In addition, each of the bone fiber liner (40) and sleeve insert (36) components is provided with a spiral groove (42,38) within which the inner layers of the outer covering or wrapping (14) are disposed during the wrapping fabrication of the fuse tube assembly (12).
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: January 14, 1986
    Assignee: Cooper Industries, Inc.
    Inventors: Dean C. Warner, James R. Marek
  • Patent number: 4467308
    Abstract: An improved fuse assembly having a unique structure comprising a rigid tubular member having preformed solder-receiving recesses on its outer surface at each end of the tubular member. A fusible element is stretched between the ends of the tubular member and a preformed notch on the rim at each end of the tubular member serves to pick up each end of the fusible element and bent thereover for embedding it into the preformed outer recesses of the tubular member.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: August 21, 1984
    Assignee: San-o Industrial Co., Ltd.
    Inventors: Hiroo Arikawa, Akira Taniguchi
  • Patent number: 4419651
    Abstract: A high voltage fuse with an element operating at relatively high temperatures and having such element comprised of a metallic material which is highly susceptible to oxidation at such temperatures is disclosed. The fuse element has predetermined dimensions so as to have a predetermined time-current characteristic. The high voltage fuse has a sealed environment for housing the fuse element. The fuse element has a thickness dimension sufficiently great so that any oxide layer that may accumulate on the fuse element over a service period of 15 years does not significantly affect the predetermined time-current characteristic of the fuse element during the period.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: December 6, 1983
    Assignee: General Electric Company
    Inventor: John G. Leach
  • Patent number: 4326185
    Abstract: An electric fuse having a cartridge formed of a pair of semi-cylindrical casings, i.e., a body casing and a cover casing. The cover casing has a circumferential flat edge surface and a central ridge protruding above the flat surface, and the body casing has a circumferential flat edge surface and a central channel recessed therein for receiving the ridge section of the cover casing so as to form a passageway between the ridge section of the cover casing and the channel when the two casings are coupled to form the fuse cartridge. A fusible element is stretched diagonally between the ends of the body casing, passing through a pair of grooves in the edge surfaces at the end of the body casing, extending through the passageway and out through a pair of grooves disposed at the ends of the body casing, approximately in the middle thereof. The ends of the fusible element are soldered and capped or they may be soldered to the respective ends of a lead wire without end caps.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: April 20, 1982
    Assignee: San-O Industrial Company, Ltd.
    Inventor: Hiroo Arikawa
  • Patent number: 4081778
    Abstract: A dry well fuseholder for use with electrical apparatus containing a dielectric liquid. The holder has an outer, liquid-tight, tubular shell and a number of components inside the shell abutting coaxially in the following order: an annular fitting adapted for supporting the fuseholder on the apparatus; an insulating tube; an annular fuse terminal; another insulating tube; and an annular fuse terminal closed at one end. Glass fibers bonded together with epoxy resin are wound over the peripheral surface of the fitting-tube assembly to produce the shell. Seals are located between the fittings and shell near the joints of fittings and tubes. These seals are composed of a material which swells on contact with the dielectric liquid.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: March 28, 1978
    Assignee: Canadian General Electric Company, Ltd.
    Inventors: Stanley F. Sack, Morris Mattuck
  • Patent number: 4074219
    Abstract: A mount for a circuit breaker for mounting the circuit breaker in a holder of the type typically used for fuses and a method of making the mount is disclosed. Engaging means such as metallic screw threads or a bayonet ferrule are bonded to the envelope of the circuit breaker with one of the circuit breaker leads attached thereto. The other circuit breaker lead is attached to an eyelet. A spacer is molded between the base of the circuit breaker and the eyelet to hold the eyelet in a fixed position relative to the circuit breaker so that when the screw threads or bayonet ferrule is engaged with a holder, the eyelet contacts a contact in the base of the holder.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: February 14, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Svein T. Nordberg, Donald R. Shaner
  • Patent number: 4068370
    Abstract: A method for making a mount for a circuit breaker for mounting the circuit breaker in a holder of the type typically used for fuses and a method of making the mount is disclosed. Engaging means such as metallic screw threads or a bayonet ferrule are bonded to the envelope of the circuit breaker with one of the circuit breaker leads attached thereto. The other circuit breaker lead is attached to an eyelet. A spacer is molded between the base of the circuit breaker and the eyelet to hold the eyelet in a fixed position relative to the circuit breaker so that when the screw threads or bayonet ferrule is engaged with a holder, the eyelet contacts a contact in the base of the holder.
    Type: Grant
    Filed: April 14, 1977
    Date of Patent: January 17, 1978
    Assignee: GTE Sylvania Incorporated
    Inventors: Svein T. Nordberg, Donald R. Shaner
  • Patent number: 3986158
    Abstract: A fuse having a composite casing. It includes a radially inner tubular portion that is circular in cross-section, of uniform wall thickness, and houses the fusible element means and a body of pulverulent arc-quenching filler. The casing structure further includes a plurality of angularly displaced rods of an electric insulating material having substantially the same length as the tubular portion of uniform wall thickness of the casing arranged parallel to the axis of said tubular portion, in abutting relation to the outer surface thereof, and adhesively affixed to said outer surface. A pair of spaced external terminal plates closes the tubular portion of the casing and is provided with fasteners having shanks projecting into the end surfaces of said plurality of rods.
    Type: Grant
    Filed: September 18, 1975
    Date of Patent: October 12, 1976
    Assignee: The Chase-Shawmut Company
    Inventor: Erwin Salzer