Peculiarly Adapted For Cartridge Fuse Patents (Class 337/213)
  • Patent number: 10586672
    Abstract: A touch-safe fuse module includes a built-in slidable handle movable between extended and retracted positions relating to a housing of the fuse module. In the extended position, the handle assists with removal of the fuse from a base housing assembly by improving mechanical leverage to apply extraction force to the housing. Fuse modules having high current ratings may be effectively removed by hand without separately provided tools.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: March 10, 2020
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Matthew Rain Darr, Xuecheng Zhang, Rui Guo
  • Patent number: 9437985
    Abstract: A connector with an integral fuse holder is described herein. The connector can include a portion having a fuse receiver disposed within a cavity and coupled to an electrical connection feature. The connector can include an end coupled to the portion, where the end includes a wall that forms a cavity. The connector can further include a fuse assembly having a contact member, a fuse, a fuse holder, and a conductor receiver. The contact member can couple to the electrical connection feature. The fuse holder can include a first end that couples to a top end of the fuse and the contact member, and a second end that couples to a bottom end of the fuse. The conductor receiver can couple to the second end of the fuse holder and to the bottom end of the fuse. A receiving feature of the conductor receiver can couple to a conductor.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 6, 2016
    Assignee: Cooper Technologies Company
    Inventors: Rahul Natwar Goyal, Surind Gulrajani
  • Publication number: 20130187747
    Abstract: The aim in the case of a fuse terminal is to reduce the terminal spacing and to improve handling. This is achieved by the fuse terminal having a housing, a fuse carrier, which is arranged in a pivotable manner on the housing, and a fuse element, wherein the fuse carrier has a pivoting arm, on which an accommodating element, in which the fuse element is inserted, is arranged such that the fuse element has its longitudinal axis arranged at an angle of essentially 90° to the longitudinal axis of the pivoting arm, and therefore the fuse element can be introduced, by means of a pivoting movement of the fuse carrier, into an opening formed vertically in the housing.
    Type: Application
    Filed: July 25, 2012
    Publication date: July 25, 2013
    Applicant: PHOENIX CONTACT GmbH & Co. KG
    Inventor: Heinz Reibke
  • Patent number: 8169293
    Abstract: The fuse element retaining device is an L-shaped bracket having a long leg and a short leg. The short leg has a notch and a plurality of vent holes surrounding the notch. At least one clip is provided for mounting the long leg of the L-shaped bracket to a fuse holder barrel. The fuse holder barrel has a top end and a bottom end. When the long leg of the L-shaped bracket is mounted to the fuse holder barrel, the short leg is positioned with the vent holes over the bottom end of the fuse holder barrel. The vent holes are for venting propellant gases during a discharge when a fuse element blows. The notch receives a part of the fuse element from the fuse holder barrel and minimizes projectiles from the fuse element heading towards the ground at very high speeds when the fuse element blows during the discharge.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: May 1, 2012
    Inventors: Wayne Hemmingway, Henry D. Henderson
  • Patent number: 8164412
    Abstract: The invention relates to a thermal link (1) for electrical appliances, comprising an insulating part (10) with electrical terminals (11) and contact springs (12) for providing electrical contact between said terminals (11), a fusible material insert (15) that acts as the thermal trip element and a transmission pin (13), which is displaceably mounted in the insulting part (10), one end of which engaging with the fusible material insert (15) and the other end with the contact springs (12). Said link is characterised in that the fusible material insert (15) is situated in a casing (141) that is configured as one piece with the heat transfer plate (14).
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 24, 2012
    Assignee: Inner Control Hermann Kohler Electrik GmbH & Co. KG
    Inventors: Peter Sieber, Roland Wolf, Lutz Pahlke
  • Publication number: 20090261940
    Abstract: The invention relates to a thermal link (1) for electrical appliances, comprises an insulating part (10) with electrical terminals (11) and contact springs (12) for providing electrical contact between said terminals (11), a fusible material insert (15) that acts as the thermal trip element and a transmission pin (13), which is displaceably mounted in the insulting part (10), one end of which engaging with the fusible material insert (15) and the other end with the contact springs (12). Said link is characterised in that the fusible material insert (15) is situated in a casing (141) that is configured as one piece with the heat transfer plate (14).
    Type: Application
    Filed: June 27, 2006
    Publication date: October 22, 2009
    Inventors: Peter Sieber, Roland Wolf, Lutz Pahlke
  • Patent number: 6781809
    Abstract: A fused electrical disconnect device includes a housing defining a cartridge receptacle. A line interface and a load interface are disposed within the receptacle. A line terminal extends into the body and is in electrical communication with the line interface. A load terminal also extends into the body and is in electrical communication with the load interface. A fuse holding cartridge is removably insertable into the cartridge receptacle and releasably accommodates a load protection fuse. The fuse holding cartridge establishes an electrical current path between the line and load interfaces when the fuse holding cartridge accommodates a load protection fuse and is inserted into the cartridge receptacle. An alarm signal circuit is also in electrical communication with the line and load terminals. The alarm signal circuit generates an alarm signal when the electrical current path is interrupted and the line and load terminals are electrically coupled to a power source and a load respectively.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: August 24, 2004
    Assignee: Canadian Shunt Industries Ltd.
    Inventor: Edwin Milanczak
  • 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
  • Patent number: 5963411
    Abstract: A power supply disconnect device includes a main housing that fits within a power supply distribution panel; a receptacle in the main housing; a detachable fuse holder that fits within the main housing receptacle; first electrical contacts within the main housing that are engagable with a fuse in the fuse holder when the fuse holder is inserted in the main housing receptacle; the fuse holder includes two parts that are moveable relative to each other, and which can be moved into an open position for receiving the fuse and into a closed position for securing the fuse in the fuse holder; and an alarm fuse connected to the first electrical contacts so as to provide an alarm in the event that a fuse in the fuse holder is blown, the alarm fuse being located in the receptacle in the main housing.
    Type: Grant
    Filed: May 27, 1998
    Date of Patent: October 5, 1999
    Assignee: Cooper Technologies Company
    Inventors: Ronald Mollet, Thomas C. Stevens
  • Patent number: 5670928
    Abstract: A fuse box including an insulative bottom shell having a locating block and fixedly mounted with a metal common receptacle, a cover shell covered on the bottom shell and secured thereto by hooks, a plurality of spring supported jacks mounted in respective through holes in the locating block of the bottom shell, a plurality of cartridge fuses respectively connected between the jacks and respective plug holes in the metal common receptacle, a plurality of first electric wire connectors respectively fastened to respective electric wires and then connected to the jacks by a respective screw joint, and a plurality of second electric wire connectors respectively fastened to respective electric wires and then respectively threaded into a respective screw hole in the metal common receptacle.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: September 23, 1997
    Inventors: Wen-Tzung Cheng, Wen-Huoh Cheng
  • Patent number: 5594404
    Abstract: An fuse orientation device for an alarm indicating type fuse includes an orientation ring removably positionable on a cylindrical fuse body adjacent to a selected end having an axially extendable alarm indicator pin, and a fuse element holder having fuse mounting clips, a shoulder and receiving gap in the fuse holder allowing a fuse carrying the ring to be mounted in a particular orientation so that the indicator pin will cooperate with an alarm indicating circuit in the event the fuse element interrupts the circuit.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: January 14, 1997
    Assignee: Cooper Industries
    Inventors: Lawrence R. Happ, Conrad F. Alfaro, Bruce B. Grossmann
  • Patent number: 5576682
    Abstract: A fuse holder (2) for use in electrical apparatus includes a tubular body (6) having outer and inner ends (10, 16). A first electrical contact element (22) and a mounting flange (8) are secured to the inner and outer ends, preferably using resilient retaining rings (53, 68) engaging circular grooves (52, 20; 62, 20) formed in the opposed surfaces. A tubular second electrical contact element (32) is secured within the tubular body and preferably has a flexible electrical terminal strap (24) which extends out through an opening (23) formed in the tubular body. Fluid-tight seals are provided between the inner surface (14) of the tubular body and the outer surfaces (46, 58, 30) of the first and second electrical contact elements and the mounting flange assembly by using pairs of O-rings (38, 50 and 70); an adhesive (39) is also used to secure these elements to the body.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: November 19, 1996
    Assignee: Kuhlman Electric Corporation
    Inventors: John L. Fisher, J. Donald Richerson, Ronald F. Dornbrock, John E. Cloyd, Stephen D. Smith
  • Patent number: 5559489
    Abstract: The present invention provides a fuse holder as part of an integrated switch base assembly for attachment to a fusible switch having one or more phases between the line and load side of a circuit. The fusible switch has a switch base assembly for opening and closing a switch contact. The switch base assembly has a mounting surface. The fuse holder includes a generally planar base made of electrically-insulating material. The base has a top and bottom face. The top face has a plurality of upstanding walls integrally formed therewith which define a compartment corresponding to each phase. The bottom face has a contoured surface adapted to abut the mounting surface of the switch base assembly. A first and second fuse clip correspond to each phase and are secured on opposite ends of the top face within the compartment. A terminal connects to the load side of the circuit and electrically and mechanically connects to the first fuse clip. The fuse holder includes an elongated connector having two ends.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: September 24, 1996
    Assignee: Square D Company
    Inventor: Conrad Weiden
  • Patent number: 5515023
    Abstract: An overcurrent protection module includes a base unit and a removable fuse holder. The base unit is mountable on a panel or a DIN rail so that a containing space for the fuse holder stands perpendicular to a plane of the panel or the DIN rail, and in line with a conventional wiring orientation. The fuse holder includes at least three fuse slots arranged in a single plane, so that in a position inserted in the base unit, the fuse slots are perpendicular to the plane of the panel or DIN rail. Line terminals are singularly located on a first side wall of the base unit and load terminals are singularly located on a second side wall, opposite to the first side wall. The overcurrent protection module according to the invention is simpler to mount and requires less surface mounting space than a conventional fuse block. The overcurrent protection module also provides protection from shock hazard by shielding an operator from contact with live terminals or fuses.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: May 7, 1996
    Assignee: Cooper Industries
    Inventors: David R. Marach, Angelina M. Bernardi, Ruel E. Davis, Steven R. Goble
  • Patent number: 5338228
    Abstract: A fuse holder retains and removably connects a fuse to fuse clips within an electrical device. The fuse holder includes a fuse drawer having an open top to hold the fuse. Openings in the fuse drawer are adapted to receive the fuse clips. A guide within the electrical device facilitates sliding the fuse drawer between an open position outside of the electrical device and a closed position within the device. In the closed position, the fuse clips extend through the openings in the fuse drawer and engage the fuse within the fuse drawer to close the electrical circuit within the electrical device. An individual is unable to contact the fuse when the fuse drawer is closed within the electrical device. Similarly, the fuse is disengaged from the fuse clips and the electrical circuit is broken when the fuse drawer is opened so that it is not possible for an individual to contact the fuse while the fuse is connected to the electrical circuit.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: August 16, 1994
    Assignee: Amprobe Instrument
    Inventors: Austin J. Wright, Jr., Joseph P. Pecukonis
  • Patent number: 5134382
    Abstract: This support is for mounting on structure of electrical apparatus a fuse or other device that comprises a cylindrical tube. The support comprises a base adapted to be secured to said structure, the base having a length and a width dimension. Two legs project laterally from the base at its longitudinally-opposite ends, each leg comprising a body portion that has a proximate end and a distal end. The base and the legs are of rigid polymeric insulating material, and the body portion of each leg is integrally joined to the base at the proximate end of the body portion. At its distal end the body portion of each leg carries a flange that projects from the body portion longitudinally with respect to the base. Each flange has a concave arcuate surface facing away from the base that is adapted to receive a portion of the above cylindrical tube. The arcuate surface includes a first curved portion for receiving a relatively large diameter tube and another curved portion for receiving a relatively small diameter tube.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: July 28, 1992
    Assignee: General Electric Company
    Inventors: Gary D. Davis, Michael G. Nolte, Timothy G. Tillery, Robert W. Scheu, John R. Castonguay
  • Patent number: 5002505
    Abstract: A shock-safe fuse holder for a cartridge fuse is provided which can be readily installed in a mating receptacle and removed therefrom for fuse replacement. The fuse holder includes a visual indicator for denoting a blown or missing fuse. The cartridge fuse is substantially enclosed within the holder to limit the access to the electrical contacts of the cartridge fuse to minimize the danger of electrical shock. The holder has a configuration for retaining the holder in a mating fuse receptacle even in the absence of an installed fuse.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: March 26, 1991
    Assignee: Reed Devices, Inc.
    Inventors: William H. Jones, Clayton D. Heidorn
  • Patent number: 4962363
    Abstract: A surface mountable leadless fuse generally includes a tubular fuse sub-assembly with an insulating body molded thereto in intimate sealing relation. The tubular fuse sub-assembly includes a nonconductive tubular housing, cup-shaped metal end caps enclosing the housing. The insulating body includes an upper and lower portion which are integral as molded. The end caps protrude from a bottom surface of the insulating body so that the fuse can engage the flat conductive areas of a circuit board for soldering thereto without obstructiion of the insulting body. The end caps also protrude from the end surfaces so that visual inspection and solder wetting are unobstructed. The lower portion of the insulating body covers an exposed portion of the tubular housing. A pair of anti-rolling legs depend from opposed margins of the bottom surface to prevent the fuse from rolling off of the circuit board once placed there.
    Type: Grant
    Filed: April 10, 1989
    Date of Patent: October 9, 1990
    Assignee: Littelfuse, Inc.
    Inventor: William F. Sexton, Jr.
  • Patent number: 4861285
    Abstract: The disclosed switching fusible apparatus includes a fuse-holding device receivable in a receptacle and rotatable to "ON", "OFF" and "RELEASE" positions. The fuse-holding device comprises a fuse holder for containing a larger fuse and it may comprise the fuse holder containing an adapter which, in turn, contains a smaller fuse. A slot in the exposed end of the fuse holder receives a screw-driver for selectively turning the fuse-holding device when tool-operable apparatus is required, or a knob is interlocked with the slot in high-profile apparatus. Contact is made to each end cap of each fuse in the "ON" position of the fuse-holding device by a contact tab that is not significantly yielding per se but which is rendered prominently resilient by oppositely extending resilient torsion supports extending along the elongated fuse-holding device.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: August 29, 1989
    Assignee: Connectron, Inc.
    Inventor: Alexander R. Norden
  • Patent number: 4826454
    Abstract: Two axially spaced contact pieces extend radially inwardly through an opening into a receiving tube provided in a housing and contact end caps of a fuse insert or fuselink, when the latter is in a locked position within the receiving tube. To release the fuse insert, a cradle-like carrier is rotated through an angle of approximately 180.degree., so that the fuse insert together with the end caps thereof are spaced and insulated from the contact pieces by the cradle of the cradle-like carrier. The cradle-like carrier including the fuse insert can now be pulled out of the housing to such an extent that barb-like elements of the cradle-like carrier abut against a stop provided at the housing. The cradle-like carrier retains the receiving tube closed by means of a closure portion of the cradle-like carrier. There is thus ensured absolute electrical shock-proof safety, in other words, there is afforded complete safety against electrical shocks.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: May 2, 1989
    Assignee: Schurter AG
    Inventors: Rene Kissling, Werner Staubli
  • Patent number: 4820195
    Abstract: A sneak current protector comprises a block of non-conductive, preferably plastic material having at least two slots extending therethrough which are sized to receive adjacent terminals extending from a terminal block, such as 66 type terminals. An opening is provided through the block which is transverse to the slots and which communicates between the slots. A small cylindrical fuse element is loaded into this opening such that the opposed conductive ends of the fuse are exposed within the respective slots. The block is provided with a handle so that the slots of the block may be mounted directly onto a pair of adjacent terminals. During such mounting, the conductive ends of the cylindrical fuse will contact the terminals providing both a bridging function and a current overload protective function.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: April 11, 1989
    Assignee: The Siemon Company
    Inventor: John A. Siemon
  • Patent number: 4759730
    Abstract: A fuseholder assembly includes a two pole fuseholder having load side and line side sections housing a pair of inline fuses which connect respective load and line side terminals, and a breakaway receptacle that releasably joins the line side terminals to corresponding line conductors. The line side section of the fuseholder includes a boss on one side thereof and the load side section and breakaway receptacle each include mating grooves formed therein. The boss is received within both grooves when the fuseholder assembly is properly assembled to polarize the fuseholder sections with respect to one another and to polarize the attachment of the breakaway assembly to the line side fuseholder terminals.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: July 26, 1988
    Assignee: Cooper Industries, Inc.
    Inventors: Gayle L. Sappington, Angelo Urani
  • Patent number: 4755785
    Abstract: A fuse assembly in which a molded cover is affixed over a standard tubular fuse. The cover is specially configured to allow the caps of the fuse to be surface mounted to solder points on a printed circuit board. The cover includes a pair of ears which contact the surface of the printed circuit board to prevent the assembly from rolling laterally. The cover has a flat face which may be printed to identify the fuse.
    Type: Grant
    Filed: January 29, 1987
    Date of Patent: July 5, 1988
    Assignee: Bel Fuse Inc.
    Inventor: Elliot Bernstein
  • Patent number: 4690648
    Abstract: A cartridge fuse holder having a stationary electrical contact adapted to engage one of the end terminals of a cartridge fuse and a movable electrical contact adapted to engage the other end terminal of the fuse. The moveable contact includes a T-shaped electrical contact formed from an integral sheetmetal blank which is reciprocably mounted within the fuse holder in a fashion biasing it against its respective fuse terminal.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: September 1, 1987
    Assignee: Cooper Industries, Inc.
    Inventor: Angelo Urani
  • Patent number: 4592613
    Abstract: A fused plug (12) of the add-on type includes a body shell (13') formed of integral one-piece molded construction. The shell has a recess (23) opening forwardly. A fuse site body (27) is receivable within the recess. The fuse site body includes longitudinal recesses (39, 39') at opposite sides for receiving blade plugs (20, 20') in mutually secured relationship. Fuse-receiving recesses (32, 32') are defined in the forward end of the fuse site body for receiving a pair of miniature cartridge fuses (33, 33') with one end of each of the fuses electrically contacting a respective blade plug. The fuse site body also provides for electrical connection of wire leads (36, 36') with opposite ends of the fuses, such leads extending through an opening in the shell. The fuse site body is provided with projections (29) which fit into apertures (30) on opposite walls of the body shell for locking the fuse site body within the body shell in mutually secured relationship.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: June 3, 1986
    Assignees: Chane Hwa Manufacturing Co. Ltd., Tung Ming Electrical Co. Ltd., Chane Hwa Electrical Co. Ltd.
    Inventor: George K. K. Tong
  • Patent number: 4568137
    Abstract: An electrical connector has an arrangement for holding and connecting at least one fuse cartridge within the body of the connector, the arrangement including a fuse cartridge holder slideably received within a recess in the connector body, in a rectilinear manner, and secured in place in the connector body by a selectively disengageable latch mechanism.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: February 4, 1986
    Assignee: Feller AG
    Inventor: Karl Leuthold
  • Patent number: 4559504
    Abstract: A series or multiple-contact terminal having a socket in which stationary contacts are arranged for cooperative engagement with switching contacts on an operating element. The switching contacts are formed through a retainer for fuse inserts with two contact elements which are located spaced apart opposite each other on a fuse carrier; wherein the fuse carrier is retained so as to be rotatable and lockable within a guide member, with the guide element being guided within the base so as to displaceable and withdrawable therefrom; and wherein the fuse carrier cover the stationary contacts in the socket secure against touching by means of cover rails in the inserted as well as in the raised position, and whereby in the raised and transversely rotated position these rails provide an access for the retention of the fuse insert.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: December 17, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventor: Zdenek Krec
  • Patent number: 4543557
    Abstract: A fuse holder includes a fuse carrier insertable into a passageway in a fuse holder body mountable in a vertical panel opening. The fuse carrier supports an active fuse in a U-shaped recess loosely holding the fuse in a horizontal position extending parallel to the panel. The fuse holder body includes a shoulder adjacent the front end thereof for preventing the complete withdrawal of the fuse carrier from said fuse holder body when the fuse carrier is pulled to the front of the body. The fuse carrier has pivot pins for pivotally engaging this shoulder so that the carrier drops into a position where it hangs downwardly from said fuse holder body where a fuse releasably held on the carrier is exposed for removal. The fuse holder body and fuse carrier have releasable interlocking parts which become interlocked when the fuse carrier has been pushed into a fully retracted position within the fuse holder body where the fuse terminals engage with terminal clips.
    Type: Grant
    Filed: November 30, 1983
    Date of Patent: September 24, 1985
    Assignee: Littelfuse, Inc.
    Inventor: Rudolf K. Schaefer
  • Patent number: 4504815
    Abstract: A fuseholder of the bayonet-type for retaining tubular fuses is provided with a cap insert having a radial projection adjacent its open end, and a radially-projecting tab means adjacent its open end. The projection and tab cooperate with a body contact having a tip portion and a notch, the tab latching in the notch, and the radial projection bearing against the tip portion, so that electrical continuity is not lost if the cap portion of the fuseholder is accidentally depressed. A symmetrical spring means having a central portion and identical reduced-diameter end portions may be used in such a fuseholder, and simplifies the assembly of the fuseholder by eliminating the necessity for a predetermined endwise alignment of the spring at assembly.
    Type: Grant
    Filed: December 2, 1982
    Date of Patent: March 12, 1985
    Assignee: Allied Corporation
    Inventor: Frank A. Harwath
  • Patent number: 4488767
    Abstract: An improved fuse holder system which incorporates a rejection feature in the fuse holder, as well as its receptacle. The fuse holder and receptacle are arranged to reject standard fuses, as well as rejection type fuses, having a lower interrupt rating as may be used in control circuits of contactors and starters.
    Type: Grant
    Filed: May 4, 1983
    Date of Patent: December 18, 1984
    Assignee: Square D Company
    Inventors: Lewis M. Lehman, Joseph J. Gribble
  • Patent number: 4481496
    Abstract: The disclosed fusible apparatus has a one-piece molded fuse holder of insulation that receives and largely encloses a glass fuse and enters the cavity of a fuse-holder receptacle endwise, then to be rotated about its longitudinal axis for carrying the fuse in an eccentric orbital path from the initial insertion position into an OFF position and into an ON position, carrying exposed portions of the fuse terminals into engagement with contacts in the fuse-holder receptacle, the fuse holder being detented in its OFF and ON positions and being biased by a spring for ejection in its insertion (release) position.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: November 6, 1984
    Inventor: Alexander R. Norden
  • Patent number: 4448476
    Abstract: A fuseholder and method for manufacturing thereof, the fuse holder having a cap and a molded body to receive a fuse. The fuse holder has a first contact located at one end of the body to engage one end of the fuse. A cylindrical second contact having opposed J-shaped slots is disposed near the other end of the body. Engaging the other end of the fuse is a connector having a pair of tabs receivable by the J-shaped slots to form a conductive bayonet connection between the connector and the second contact. Protrusions on the connector slidably engage the second contact to maintain conductive contact therebetween if the bayonet connection is broken. The fuse holder can be adapted by modifying the connector or by using an adaptor to accommodate shorter fuses. To manufacture the fuse holder, the first and second contacts are insert-molded into the body.
    Type: Grant
    Filed: May 11, 1982
    Date of Patent: May 15, 1984
    Assignee: Permonite Mfg. Co.
    Inventors: Stanley Perlman, William G. Herbert, Donald Layton, James S. Hanafee
  • Patent number: 4411486
    Abstract: A fuse holder for an electrical cartridge fuse (5), has an insulating housing (1") having a mounting recess (4) for the fuse (5) and a pair of contacts (2, 3) in the housing (1") for engaging respective end caps of the fuse (5). The housing (1") includes a pair of slots (6, 7) extending substantially parallel with the longitudinal axis of the mounting recess (4), the contacts (2, 3) being arranged one in each of the slots (6, 7). Each contact (2, 3) has a spring contact tongue (22', 27') which projects inwardly out of the respective slot (6, 7) to engage the associated contact cap on the fuse (5).
    Type: Grant
    Filed: February 19, 1981
    Date of Patent: October 25, 1983
    Assignee: Wickmann-Werke AG
    Inventor: Martin Behrendt
  • Patent number: 4390225
    Abstract: An improved fuse cap (11) which grasps an end of an elongated fuse (13) and mates with a fuse block (12) is disclosed. The fuse cap comprises a spring-loaded electrical terminal structure (32) which can be readily assembled into the fuse cap housing (31). The terminal structure serially connects the fuse element between the terminals (24,28) in the fuse block and provides connection to an alarm terminal (25) in the block when the fuse overloads.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: June 28, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Kevin N. Coyne, Hazen Curtis, III
  • Patent number: 4329006
    Abstract: A fuse holder for a miniature cartridge fuselink, comprises a hollow body and a fuse carrier, formed as plastic mouldings, and two spring metal contact members engagable witih the outside of the body and having central parts which project into the cylindrical chamber of the body through slots in the body wall. The construction is such that the fuse carrier can only be inserted into the body when it is oriented in one predetermined position relative to the body and, in this position, there are barriers of insulation material between the end caps of a fuselink snapped into the fuse carrier and the potentially live electrical terminals on the body. When the fuse carrier is fully inserted into the body, it can be rotated through one half turn to engage the end caps of the fuselink with the contacts. The fuse holder prohibits a user from touching any live terminals, and the end caps of the fuselink cannot engage the contacts of the holder while the fuse carrier is being inserted into or removed from the holder.
    Type: Grant
    Filed: February 1, 1980
    Date of Patent: May 11, 1982
    Assignee: Kenneth E. Beswick Limited
    Inventor: James A. S. Gale
  • Patent number: 4299435
    Abstract: A receptacle for replaceably holding a replaceable fuse in an electrical circuit includes a forwardly inwardly tapered tubular member closed at its front end by a contact-defining metal cap and provided at its rear end with an internally threaded enlarged section, a contact-defining metal collar telescoping the rear of the tapered tube forward of the enlarged section and having a terminal tab projecting outwardly through an opening in the enlarged section. An externally threaded closure plug separably engages the tubular member threaded section and has in its front face a well whose axis is transversely offset from the plug axis and whose peripheral face is rearwardly inwardly tapered. A transversely crescent shaped wedge member projects forwardly from the well border and is integrally formed with the plug and has a tapered inside face coplanar with the well peripheral face.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: November 10, 1981
    Assignee: Duracell International Inc.
    Inventor: Gordon E. Kaye
  • Patent number: 4117440
    Abstract: A circuit interrupter characterized by a stationary contact, a movable, elongated, tubular fuse in which one end of the fuse is swingably mounted about the other end in a predetermined path to open and close a circuit through the contact, and the other end of the fuse being pivotably seated between supporting conductors which are peripherally spaced around the fuse and one of which conductors is a leaf spring biased against said other end of the fuse.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: September 26, 1978
    Assignee: Westinghouse Electric Corp.
    Inventors: Thomas A. Wilsdon, William P. Heim, Glenn A. Barlis
  • 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: 4052688
    Abstract: A fuse clip assembly is disclosed for use with alarm type fuses. The assembly includes a forward spring tension clip, a rear spring tension clip and an alarm terminal. The rear clip is shaped to thrust the fuse forward while the forward clip is designed with a shoulder to position the fuse. The alarm terminal is positioned to catch an extended fuse alarm terminal and is shaped to securely capture the terminal to insure positive electrical contact for alarm purposes. An arrangement is disclosed which provides visual-only alarm indications.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: October 4, 1977
    Assignees: Bell Telephone Laboratories, Incorporated, Western Electric Company, Inc.
    Inventors: Ernest Gerard DeNigris, Albert John Tutko
  • Patent number: 4032878
    Abstract: A cartridge fuse carrier assembly has a housing with a recess for receiving a cartridge fuse. The fuse is held between a contact member co-operable with one end of the fuse at the bottom of the recess and a cap at the opening of the recess, the cap carrying a contact member co-operable with the other end of the fuse. The cap also carries locking means which are moved into the cap-securing position by a transverse movement of the cap relative to the recess, after the cap has been fitted into the opening of the recess. One or more wall surfaces of the recess, and adjacent surface or surfaces of the cap, define a rib and groove coupling arrangement, with the or each rib and co-operating groove being relatively displaced with respect to each other by a distance substantially equal to the length of the transverse movement.
    Type: Grant
    Filed: January 22, 1976
    Date of Patent: June 28, 1977
    Assignee: Bassani S.p.A.
    Inventor: Pierluigi Ranzanigo