Contact Or Terminal Structure Patents (Class 337/268)
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Patent number: 11749483Abstract: A fuse including a fuse body having a base with a central portion and first and second sidewalls, the central portion having first and second fastening holes formed therethrough, a mid-body disposed atop the central portion and having first and second troughs formed in a top surface thereof and separated by a partition wall, the mid-body further having first and second through holes formed therethrough, and a cover disposed atop the mid-body and having a central portion and first and second sidewalls, the central portion having first and second fastening bosses extending therefrom and through the first and second through holes of the mid-body and the first and second fastening holes of the base, and a conductive portion including first and second terminal portions connected by parallel first and second fuse members disposed within the first and second troughs of the mid-body and separated by the partition wall.Type: GrantFiled: April 19, 2022Date of Patent: September 5, 2023Assignee: Littelfuse, Inc.Inventors: Lily Espenilla Rosios, Ralph Pechon Labonite, Arnel Alibuyog Ramos
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Patent number: 9490095Abstract: A fusible link unit includes a conductive busbar, a resin housing, and a resin cover. The conductive busbar includes a fusible part. The resin housing is integrally formed at a predetermined position of the busbar. The resin cover is locked so as to cover an exposure window of the resin housing which is formed so that the fusible part is observed. The resin housing has an integral wall at the back position of the exposure window which faces the fusible part.Type: GrantFiled: January 11, 2011Date of Patent: November 8, 2016Assignee: YAZAKI CORPORATIONInventor: Yusuke Matsumoto
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Patent number: 8026786Abstract: A fuse module includes a wiring lug. The wiring lug includes a fuse clip member comprising a first pressure plate and a fuse clip, a lug box comprising a second pressure plate, and a securing member operably coupled to the lug box. The securing member operates between a first position and a second position to move the second pressure plate of the lug box with respect to the first pressure plate of the fuse clip member. The first pressure plate and the second pressure plate have a clamping relationship when the securing member is in the first position and have a non-clamping relationship when the securing member is in the second position.Type: GrantFiled: July 25, 2008Date of Patent: September 27, 2011Assignee: Cooper Technologies CompanyInventors: Matthew R. Darr, Jiehua Su
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Patent number: 7876193Abstract: A fuse circuit assembly having a power distribution bar for distributing power from a power input and an electrical terminal integral with the power distribution bar. The electrical terminal has a fuse element that is configured to open at an over current threshold in order to prevent current flow therethrough. The electrical terminal portion also has a female terminal portion.Type: GrantFiled: April 4, 2008Date of Patent: January 25, 2011Assignee: Lear CorporationInventors: Slobadan Pavlovic, David Menzies, Mohamad Zeidan
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Publication number: 20100219930Abstract: A fuse employing a plurality of tuning fork terminal configurations with an improved current capacity within a smaller footprint and a housing design to provide the terminals with insert protection and strain relief.Type: ApplicationFiled: February 25, 2010Publication date: September 2, 2010Applicant: LITTELFUSE, INC.Inventors: Seibang Oh, Julio Urrea, James J. Beckert
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Patent number: 7710236Abstract: A fuse system has both a non-serviceable fuse and a fuse terminal system for selectively installing a serviceable fuse. When installed, the serviceable fuse provides a current flow path parallel to the non-serviceable fuse.Type: GrantFiled: July 10, 2007Date of Patent: May 4, 2010Assignee: Delphi Technologies, Inc.Inventor: Andrew J. Jozwiak
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Publication number: 20090251274Abstract: A fuse circuit assembly having a power distribution bar for distributing power from a power input and an electrical terminal integral with the power distribution bar. The electrical terminal has a fuse element that is configured to open at an over current threshold in order to prevent current flow therethrough. The electrical terminal portion also has a female terminal portion.Type: ApplicationFiled: April 4, 2008Publication date: October 8, 2009Applicant: LEAR CORPORATIONInventors: Slobadan Pavlovic, David Menzies, Mohamad Zeidan
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Patent number: 7564337Abstract: In one aspect of the present invention, subminiature fuses are soldered to a PCB via clips attached to the fuse end caps. The clips are physically attached to the PCB pads, enabling the fuse to be replaced if needed and providing thermal decoupling between the fuse and the heating sinking solder/PCB pads. The fuse and clips can also be picked and placed in one operation. In another aspect, improved fuse clips are provided that include tabs that separate the housing portions of the clips from the heating sinking solder/PCB pads. Such improved clips further enhance thermal decoupling. In a further aspect, an improved fuse is provided, in which the thermal decoupling tabs just described are provided directly with the fuse. In yet a further aspect, a thermally insultive fuse body is provided to further decouple the fuse element from its surroundings.Type: GrantFiled: March 3, 2005Date of Patent: July 21, 2009Assignee: Littelfuse, Inc.Inventors: Stephen J. Whitney, Gordon T. Dietsch, Vincent Minh-Tu Tran
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Patent number: 7532102Abstract: The blade fuse comprises a fuse body, a pair of significantly parallel blades connecting the fuse body and partially extending thereof to form electric connections, and a blade box for receiving the fuse body and the parallel blades.Type: GrantFiled: September 21, 2006Date of Patent: May 12, 2009Assignee: K.S. Terminals, Inc.Inventor: Yuan-Feng Lu
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Patent number: 6753755Abstract: An electrical safety connector fuse for insertion into a two- or three-pin electrical socket comprises a sealed, tamper-proof housing having live and neutral apertures, and live and neutral receptacles for receiving the prongs of a plug, live and neutral prongs for insertion into the socket, and a fuse disposed within the housing. The connector fuse desirably has an internal light which lights up when the fuse is connected to a live socket, a blocking member or gate to prevent a user from receiving an electric shock by inserting objects into the live aperture of the fuse, and an insulting coating on at least a part of the live prong to prevent electric shocks as the fuse is inserted into a socket.Type: GrantFiled: February 28, 2002Date of Patent: June 22, 2004Assignee: Safer Home, Inc.Inventor: William A. Montague
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Patent number: 6707369Abstract: In a casing (2), there are accommodated a power-source side bus-bar (5) connected to a power source, a plurality of load side bus-bars (7) having respective terminals connected to respective electrical loads, a plurality of power devices (8) interposed between the power-source side bus-bar (5) and the load side bus-bars (7) to control power supply for the electrical loads; and a circuit base plate (9) having a built-in driver circuit for transmitting control signals to the power devices (8). In the form of bare tips, the power devices (8) are arranged on and connected to the load side bus-bars (7) respectively. The power devices (8) are connected to the circuit baseplate (9) through wire bondings (11). The power devices (8) are also connected to the power-source side bus-bar (5) through wire bondings (12). Each load side bus-bar (7) has a tuning-fork type terminal (6) allowing an insertion of a plate-shaped terminal (50a) of a fuse (50).Type: GrantFiled: October 18, 2002Date of Patent: March 16, 2004Assignee: Yazaki CorporationInventors: Mitsuaki Morimoto, Yoshinori Ikuta
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Patent number: 6653925Abstract: There is provided a method for insulating leads of a thermal fuse with an insulating tube that can reduce the quantity of the adhesive and prevent the defect of appearance and the lowering of the value of the product, by applying an adhesive on the circumference of the leads, and putting the insulating tube on the lead from the outer end of the lead while rotating the insulating tube, so that the adhesive is present inside the insulating tube. There is also provided a low-cost, downsized thermal fuse with excellent heat resistance, by using the alloy that has a melting point of 190° C. or above as the fusible alloy, and a copper wire plated with an Sn—Cu alloy for the lead.Type: GrantFiled: October 13, 2000Date of Patent: November 25, 2003Assignee: Anzen Dengu Kabushiki KaishaInventors: Yoshio Asami, Shinichi Kato
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Publication number: 20030090358Abstract: In a casing (2), there are accommodated a power-source side bus-bar (5) connected to a power source, a plurality of load side bus-bars (7) having respective terminals connected to respective electrical loads, a plurality of power devices (8) interposed between the power-source side bus-bar (5) and the load side bus-bars (7) to control power supply for the electrical loads; and a circuit baseplate (9) having a built-in driver circuit for transmitting control signals to the power devices (8). In the form of bare tips, the power devices (8) are arranged on and connected to the load side bus-bars (7) respectively. The power devices (8) are connected to the circuit baseplate (9) through wire bondings (11). The power devices (8) are also connected to the power-source side bus-bar (5) through wire bondings (12). Each load side bus-bar (7) has a tuning-fork type terminal (6) allowing an insertion of a plate-shaped terminal (50a) of a fuse (50).Type: ApplicationFiled: October 18, 2002Publication date: May 15, 2003Applicant: YAZAKI CORPORATIONInventors: Mitsuaki Morimoto, Yoshinori Ikuta
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Patent number: 6483417Abstract: 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: GrantFiled: February 25, 2000Date of Patent: November 19, 2002Assignee: Cooper Technologies CompanyInventors: David Allen Guthrie, Douglas Scott May, Nancy Darlene Amburgey
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Patent number: 6147586Abstract: An insulation plate (20) is provided with a window or a slot (21). A fusible element or circuit (31) is laid on a surface of the insulation plate (20) across the window (21). When the circuit (31) is heated by current-conduction, a fusible path (33) of the circuit (31) spanned in air across the window (21) melts at a predetermined current level, since heat generated in the fusible path (31) is not absorbed in the insulation plate (20). It is possible to transform the plate fuse depending on the conditions of use, and its configuration is substantially flexible.Type: GrantFiled: July 13, 1998Date of Patent: November 14, 2000Assignees: Sumitomo Wiring Systems, Ltd., Harness System Technologies Research, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Yasushi Saitoh, Jun Yasukuni
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Patent number: 5923240Abstract: A temperature fuse for use in an electric circuit provided in an automobile or the like. The temperature fuse includes a pressure-contact terminal having a pressure-contact blade, a temperature opening and closing member having one end connected electrically to the pressure-contact terminal, a signal wire connecting terminal connected electrically to the other end of the temperature opening and closing member, and an insulating case for receiving therein the pressure-contact terminal and the temperature opening and closing member in such a manner that at least the pressure-contact blade and the signal wire connecting terminal are exposed outwardly from the insulating case.Type: GrantFiled: June 9, 1998Date of Patent: July 13, 1999Assignee: Yazaki CorporationInventors: Takayoshi Endo, Goro Nakamura
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Patent number: 5859580Abstract: A service plug includes a circuit accommodating body that has circuit terminals internally arranged therein, the circuit terminals being connected to end portions of an open electric circuit; and a plug main body that has a fuse and that is fitted with the circuit accommodating body. The plug main body has a pair of terminals that are electrically connected to fuse terminals of the fuse and that are engageable with the circuit terminals, respectively.Type: GrantFiled: September 5, 1997Date of Patent: January 12, 1999Assignee: Yazaki CorporationInventors: Shigemi Hashizawa, Hidehiko Kuboshima
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Patent number: 5805048Abstract: An insulation plate (20) is provided with a window or a slot (21). A fusible element or circuit (31) with reinforced portion (22) is laid on a surface of the insulation plate (20) across the window (21). When the circuit (31) is heated by current-conduction, a fusible path (33) of the circuit (31) spanned in air across the window (21) melts at a predetermined current level, since heat generated in the fusible path (31) is not absorbed in the insulation plate (20). It is possible to transform the plate fuse depending on the conditions of use, and its configuration is substantially flexible.Type: GrantFiled: August 8, 1996Date of Patent: September 8, 1998Assignees: Sumitomo Wiring Systems, Ltd., Harness System Technologies Research Ltd., Sumitomo Electric Industries, Ltd.Inventors: Yasushi Saitoh, Jun Yasukuni
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Patent number: 5680089Abstract: A fuse in which molten metal can be positively held or retained in a housing when a fuse element melts, and the melting of the fuse element can be easily confirmed. The fuse includes the fuse element including opposite side portions respectively defining a pair of metal terminals which are connected together through an element having a fusible portion, and are disposed in a generally common plane, and a flap of a metal material which is bendable at the boundary between the flap and the element, an insulating member being formed on at least one face of the flap; and a housing including opposite side portions respectively defining a pair of terminal receiving portions for respectively receiving the pair of terminals, and a central portion defining an element receiving portion for receiving the element, the element receiving portion having an open portion at its upper side. When the flap is bent, that face of the flap having the insulating member formed thereon is exposed to the exterior.Type: GrantFiled: October 18, 1996Date of Patent: October 21, 1997Assignee: Yazaki CorporationInventor: Naoki Matsuoka
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Patent number: 5398015Abstract: An inexpensive delay-breaking fuse which assures that when an electric current having an intensity in excess of a value representing a steady-state current such as a motor lock electric current or the like flows through the delay-breaking fuse, durability of the fuse is left unchanged, a stable prearching time/current characteristic is maintained, and moreover, there does not arise a malfunction that a housing is thermally deformed or the color of the housing is changed to other one. The delay-breaking fuse includes a fuse element having a pair of female terminal portions arranged on the opposite sides thereof with an electrical conductive melting portion having a reduced width bridged therebetween with a melting/breaking part located at the intermediate position of the electrical conductive melting portion.Type: GrantFiled: December 1, 1993Date of Patent: March 14, 1995Assignee: Yazaki CorporationInventors: Toshiharu Kudo, Mitsuhiko Totsuka
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Patent number: 5294905Abstract: A fuse that includes an insulative housing, terminals extending through gaps in the bottom of the housing, and a fusible element having ends connected to both of the terminals. The housing includes a four-sided box that is closed at the top and open on the bottom, and a lid for closing the open bottom of the box that is smaller than the open bottom of the box so that, when the lid is in place, two gaps are formed in the bottom and at opposite ends of the housing.Type: GrantFiled: April 23, 1993Date of Patent: March 15, 1994Assignee: Gould Inc.Inventor: Robert M. Pimpis
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Patent number: 4800358Abstract: A fuse to be connected to cable terminals with bolts comprises an electrical insulating housing, a fuse-element disposed in the housing and a pair of fuse contacts each connected at one end to both ends of the fuse element, respectively, and the other ends of the fuse contacts being protruded from the bottom of the housing in parallel with each other, and a notch to which a bolt for connecting a cable terminal to the fuse contact is fitted therein is formed in each fuse contact, and the notch is extended from the other end of the fuse contact toward the other end thereof. The fuse can be replaced without removing the bolt due to the provision of the notches in the fuse contacts, so that the operation efficiency when replaced is improved.Type: GrantFiled: November 19, 1987Date of Patent: January 24, 1989Assignee: Yazaki CorporationInventors: Kenji Takenouchi, Tomohiro Ikeda, Mitsuhiko Tozuka
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Patent number: 4536046Abstract: Assembly systems for compact N-pole fusible pull out switches of different ratings use the same two part insulator bases and the same insulator pull out heads in all switches. In one system, for switches of a given current rating but two different voltage ratings, there are two types of fixed contacts in the base but the contacts are the same for both voltage ratings; the fuseholder/stab contact members in the head are all the same for both switch ratings, and all mounting hardware and incidental hardware is the same for all switches. The voltage ratings are differentiated from each other only by different base terminals and by different insulator barriers over the base contacts.Type: GrantFiled: March 29, 1984Date of Patent: August 20, 1985Assignee: Boltswitch, Inc.Inventor: John W. Erickson
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Patent number: 4161714Abstract: A cartridge type fuse having a casing. A pair of terminal plugs is press-fitted into the ends of said casing and conductively interconnected by a fusible element. Each of said pair of terminal plugs has a knurled lateral wall. A pair of annular fasteners is mounted on said casing each adjacent one of the ends thereof. Said fasteners press the wall of said casing radially inwardly into firm engagement with said knurled lateral walls of said pair of terminal plugs. The casing preferably includes an outermost ply of woven glass cloth, an innermost ply of woven glass cloth, and at least one intermediate ply of relatively loose non-woven fibers sandwiched between said outermost ply and said innermost ply, and the constituent plies of said casing are preferably integrated by polyester resin.Type: GrantFiled: October 25, 1977Date of Patent: July 17, 1979Assignee: Gould, Inc.Inventor: Philip C. Jacobs, Jr.
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Patent number: 4071837Abstract: A fuse cartridge has a hollow casing of insulated material having an internal chamber filled with quartz sand and being of a parallelepiped form having two transverse walls and two pairs of longitudinal walls. One of the transverse walls is integral with the housing, and the other transverse wall is removable therefrom and has holes, through which electrically conducting pins extend into the chamber. A partition wall is located in the chamber parallel to a plane of symmetry of a first pair of the longitudinal walls. At least one substantially flat fuse strip is located in the chamber and has two opposite ends, each electrically connected to a respective pin. The fuse strip is U-shaped and has two portions parallel to the second pair of the longitudinal walls and a third portion connecting the two portions of the fuse strip to one another and parallel to the transverse walls.Type: GrantFiled: December 6, 1976Date of Patent: January 31, 1978Assignee: Bassani Ticino S.p.A.Inventor: Pierluigi Ranzanigo