Glow Lamp Patents (Class 337/242)
  • Patent number: 8854174
    Abstract: A fusible switching disconnect device includes a switch housing and terminal cover therefore that blocks access to a line side fuse clip and prevents insertion of a rectangular fuse module when switch contacts in the device are closed. An interlock element further presents the fuse from being retracted when the switch contacts are closed.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 7, 2014
    Assignee: Cooper Technologies Company
    Inventors: Jiehua Su, Matthew Rain Darr
  • Patent number: 8674803
    Abstract: A fuse for a moderately hazardous environment comprising: (i) a fuse element; (ii) first and second terminals connected to the fuse element; and (iii) a metal enclosure placed around the fuse element, the enclosure configured to protect the environment from an opening of the fuse element, and wherein the first and second terminals extend from the metal enclosure.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: March 18, 2014
    Assignee: Littelfuse, Inc.
    Inventors: Daniel Stanek, Daniel Gilman, Nathan Siegwald, William G. Rodseth
  • Patent number: 8164411
    Abstract: A fuse structure includes a casing, a fuse component and a light emitting element having pins. The casing includes a top plate, a containing space disposed below the top plate and two openings formed on the top plate. The fuse component includes two electrically conductive plates and a fuse filament, and each electrically conductive plate has a conducting portion protruded from an upper end of the electrically conductive plate, and the conducting portions are inserted into the two openings respectively. The top plate includes two compressing portions protruded from the bottom of the top plate and arranged alternately with the two conducting portions, such that an interval is formed between an external edge of each compressing portion and an internal edge of each corresponding conducting portion, and the pins of the light emitting element are clamped in the interval.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: April 24, 2012
    Inventors: Wen-Tsung Cheng, Wen-Ho Cheng
  • Patent number: 7839258
    Abstract: A fuse assembly capable of indicating whether the fuse is blown or not includes a fuse body formed therein with an accommodating space. The accommodating space is provided with two conductive terminals connected to each other via a metallic fuse. A light-emitting diode is inserted into an accommodating hole of the fuse body, thereby electrically connecting two electrodes of the light-emitting diode to the two conductive terminals. By the above arrangement, the light-emitting diode can be lighted up when the fuse body is blown.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: November 23, 2010
    Inventors: Wen-Tsung Cheng, Wen-Ho Cheng
  • Patent number: 7808362
    Abstract: A fuse for a moderately hazardous environment comprising includes: (i) a fuse element; (ii) first and second terminals connected to the fuse element; and (iii) a metal enclosure placed around the fuse element, the enclosure configured to protect the environment from an opening of the fuse element, and wherein the first and second terminals extend from the metal enclosure.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: October 5, 2010
    Assignee: Littlefuse, Inc.
    Inventors: Daniel Stanek, Daniel Gilman, Nathan Siegwald, William G. Rodseth
  • Patent number: 7772959
    Abstract: A fuse seat having light-emitting module includes an insulating body, two electricity-conducting pieces and a light-emitting module. The insulating body is arranged with an accommodating space, in which two electricity-conducting pieces are fixed respectively. A fuse is plugged into the accommodating space and connected conductively to the electricity-conducting pieces. The light-emitting module is hidden in the insulating body and is connected electrically to the electricity-conducting pieces, thus a cost-saving effect is thereby achieved.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: August 10, 2010
    Inventors: Wen-Tsung Cheng, Wen-Ho Cheng
  • Patent number: 7679484
    Abstract: A fusible link unit includes a housing and two fuse circuit bodies overlapped with each other and received in the housing in a thickness direction of the housing. A coupling plate and terminals connected to each other via fuse elements integrally forms the fuse circuit body. An opening is formed on an outer wall of the housing. The housing includes a cover made of transparent material and having a U-shaped section for covering the opening. The cover integrally includes a projection projecting to an inside of the housing on a sidewall of the cover. The projection includes a reflecting wall sloping on the sidewall in a thickness direction of the housing 7.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: March 16, 2010
    Assignee: Yazaki Corporation
    Inventors: Shinya Onoda, Toshiharu Kudo
  • Patent number: 7570147
    Abstract: A fuse component with an optical indicator, which has a first terminal (2) and a second terminal (3) and also a fusible link (4), which connects the terminals (2) and (3) in an electrically conducting manner. Connected in parallel with the fusible link (4) is at least one LED (8), which indicates the failure of the fuse if the fusible link (4) is interrupted. Preferably two LEDs are connected in antiparallel with the fusible link.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: August 4, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Rüdiger Müller
  • Patent number: 7460004
    Abstract: A circuit protection device includes a case having a transverse top portion provided with a central receiving opening and two locating holes, and two wall portions downward extended from a middle part of the transverse top portion to define a receiving space therebetween for communicating with the receiving opening and locating holes; a cutout unit having two conducting plates connected via a bridge portion, and being inserted in the receiving space with the conducting plates engaged with the locating holes and partially projected from two longitudinal edges of the wall portions; and a bipolar LED mounted in the receiving opening and having a conducting portion in contact with two pins of the cutout unit, and a light source. In an overcurrent state, the bridge portion is burned out, and current flows through the bipolar LED for the same to emit light as a cutout warning signal.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: December 2, 2008
    Assignee: Photo-Top Technologies Co., Ltd.
    Inventor: Ming-Lin Yang
  • Publication number: 20080111658
    Abstract: The present invention discloses a safety power disconnection terminal apparatus with light indication that includes: a housing, having two inspecting openings and a light transmitting portion at the top of the housing and an opening at the bottom of the housing; a terminal pin installed in the housing through the openings and composed of two parallel conducting plates and a fuse connected between the two conducting plates and a terminal portion disposed at an upper end of the two conducting plates and extended into the two inspecting openings, and a L-shape stand disposed proximate to an internal side of an upper end of the two conducting plates and having a free end extended upward; a light emitting device, installed in the light transmitting portion, and having two electrodes in contact with the two L-shape stands respectively to achieve the effects of expediting the installation and lowering the manufacturing cost.
    Type: Application
    Filed: November 13, 2006
    Publication date: May 15, 2008
    Inventor: Ming-Lin Yang
  • Patent number: 7126488
    Abstract: Herein provided is a method and apparatus that allows a pre-existing fuse housing to be easily modified and adapted to include a blown fuse indicator light thereon. Whereby when the fuse housing and light in combination are installed within an electrical circuit and if the fuse is no longer functional, the light will automatically illuminate so as to visually notify a user that the fuse needs to be replaced. Also, any suitable light source may be used, such as an LED, a cartridge type having end contacts, a long lasting reusable incandescent lamp, fiber optics, neon, etc.
    Type: Grant
    Filed: April 2, 2005
    Date of Patent: October 24, 2006
    Inventor: Galen J. May
  • Patent number: 6983168
    Abstract: The present invention relates to a mobile phone including a main printed circuit board. A first connector and a second connector are welded respectively onto a first predetermined location and a second predetermined location of the main printed circuit board, wherein a first power supply and a second power supply are provided respectively by the first connector and the second connector. The main printed circuit board includes a first portion corresponding to a keypad module and a second portion corresponding to an LCM module. The mobile phone also provides a holder, wherein a space is included in the holder to accommodate the LCM module. A slit is formed at a predetermined location of the holder. The mobile phone further includes a secondary printed circuit board carrying a plurality of LEDs to provide a back light source. The secondary printed circuit disposed within the aforementioned slit includes a first contact point and a second contact point.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: January 3, 2006
    Assignee: BenQ Corporation
    Inventors: Wei-Chih Chen, Chin-Kai Sun
  • Patent number: 6859131
    Abstract: The present invention provides a blown fuse indicator. More specifically, the present invention provides a blown fuse indicator adapted for use with multiple element fuses, which provides a perceivable distinction between a blown fuse due to a current overload and a blown fuse due to a short circuit. To this end, in one embodiment of the present invention, a diagnostic blown fuse indicator is provided for a fuse having both a short circuit element and a current overload element. The indicator includes a short circuit indicator in electrical communication with the short circuit element, wherein the short circuit indicator provides visual indication of a short circuit condition. The indicator also includes a current overload indicator in electrical communication with the current overload element, wherein the current overload indicator provides visual indication of an overload condition.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: February 22, 2005
    Inventors: Dan Stanek, John Kennedy, Lawrence Mark Klinger
  • Patent number: 6717505
    Abstract: A fused switch unit is provided with two connecting contacts into which a fuse holder (20) can be inserted in order to hold a fuse link (30) with a head contact (31) and a foot contact (32). A first connecting contact (60) of the fused switch unit (10) can be connected via a controllable interruption contact (80) and by means of a bridging element (81) to a first of the contacts (31) of the fuse link (30). The fuse holder (20) or the fused switch unit (10) has a fuse state indicating device (40) with two contacts (42, 43) for an electrical connection for the connecting contacts (60, 70) of the fused switch unit (15).
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: April 6, 2004
    Inventor: Klaus Bruchmann
  • Publication number: 20030222753
    Abstract: An automobile safety cutout with a fault indicator comprises an electric light emitting object, a fuse, two electrodes that are linked by the fuse and are wired respectively to each terminal of the electric light emitting object, and an insulating case. The fuse blows when a circuit the automobile safety cutout protects experiences an anomalous electricity supply or a short circuit, which results in a difference in electric potential between the electrodes. Because automobile electricity supply is of direct current, this potential difference is steady. The electric light emitting object straddling the electrodes is then powered by the potential difference, and is lighted up.
    Type: Application
    Filed: May 29, 2003
    Publication date: December 4, 2003
    Inventor: Chwen-Ru Lin
  • Publication number: 20030067378
    Abstract: This inventive end-of-live indicator is useful to provide notice of the degree of exhaustion of a consumable component of a device or appliance. The end-of-live indicator provides an indicator circuit, which upon receiving an electrical signal from a sensing circuit causes polarization of a simple transistor, thereby facilitating a current flow in the indicator circuit sufficient to exceed the current flow capacity of a fuse link. By exceeding the current flow capacity of the fuse link the current potential of the indicator circuit becomes zero. A plurality of indicator circuits permits indication of a plurality of degrees of exhaustion of the consumable component.
    Type: Application
    Filed: October 4, 2001
    Publication date: April 10, 2003
    Inventor: David W. Baarman
  • Patent number: 6144284
    Abstract: A blown fuse indicator cap which is removably attachable to a pre-existing prior art cartridge type fuse housing, with the cap having indicator means thereon which notifies a user that the fuse has blown and needs replacing.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: November 7, 2000
    Inventors: Cathy D. Santa Cruz, Galen J. May
  • Patent number: 6107908
    Abstract: A blown fuse commutator strip which is removably attachable to a pre existing plug-in type fuse, with the commutator strip having an indicator thereon which will notify the user that the fuse has blown and needs replacing.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: August 22, 2000
    Inventors: Cathy D. Santa Cruz, Galen J. May
  • Patent number: 5874884
    Abstract: Apparatus to illuminate a light source when a fuse has blown and method of use. Apparatus including a circuit having: a power supply source, a switch, a load, a fuse housing containing a fuse and a light housing containing a light source.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: February 23, 1999
    Inventors: Harold L. Hull, Galen J. May, Cathy D. Santa Cruz
  • Patent number: 5786743
    Abstract: Between a rocking lever controlled by a striking pin of a cartridge and a resiliently loaded actuation knob of an alarm micro-switch, there is interposed an arm mounted on a pivot which pivot is spaced from the movement axis of the knob with result that the knob is engaged by the arm virtually without any mutual lateral sliding therebetween.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: July 28, 1998
    Assignee: Ferraz
    Inventor: Joel Viscogliosi
  • Patent number: 5300913
    Abstract: A contact spring clip for a cartridge fuse blown fuse light indicator wherein the spring clip is manually squeezable for the installation and removal of the clip on the barrel of a cartridge fuse. The spring clip is provided with a track for holding an electrical contact assembly connected to the ferrules of the cartridge and which can either be connected to a blown fuse light indicator positioned at a location remote from the fuse, or connected to a blown fuse light indicator mounted on the electrical contact assembly.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: April 5, 1994
    Assignee: FIC Corporation
    Inventor: John C. Linton
  • Patent number: 5294905
    Abstract: 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: Grant
    Filed: April 23, 1993
    Date of Patent: March 15, 1994
    Assignee: Gould Inc.
    Inventor: Robert M. Pimpis
  • Patent number: 5287080
    Abstract: A blown fuse indicator for a cartridge fuse wherein conductive brackets are mounted between electrical insulating end caps and the ends of a tube housing a lamp and associated resistors. Each conductive bracket includes a disc portion having a polygonal aperture for receiving a sleeve integral with the cap, the sleeve having a polygonal cross-sectional configuration corresponding to the disc aperture. The free ends of the lamp and resistor leads extend through the disc portion of the conductive bracket and are pressed and gripped between the cap and conductive bracket. The conductive bracket also includes a blade portion which may have a planar surface, a corrugated surface or a reversely bent portion to provide direct and positive contact with the end walls of the fuse ferrules, whether they be flat, concave or convex.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: February 15, 1994
    Assignee: FIC Corporation
    Inventors: John C. Linton, William Gingras
  • Patent number: 5004995
    Abstract: A fuse assembly for a car incorporates therein an indicating bulb having two electrodes in order that the user can easily know that the fuse therein is blasted. The assembly includes a crosssectionally generally rectangular housing having a central room and two side rooms, two conducting plates received in the rooms, and a fuse connected between and integrally formed with the plates, in which the housing and the plates clamp therebetween the electrodes in order to position the bulb in the central room.
    Type: Grant
    Filed: March 22, 1990
    Date of Patent: April 2, 1991
    Inventor: Ying C. Lo
  • Patent number: 4815993
    Abstract: A fuse carrier comprises a plurality of sockets for reed-type fuses, each socket being provided with a pair of electrode clips adapted to provide support and electrical connection for each fuse. The electrode clips configured to accommodate a microlamp which is connected in parallel to the fuse. The lamp therefore illuminates whenever the fuse burns out.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: March 28, 1989
    Assignee: Meccanotecnica Codognese S.p.A.
    Inventor: Umberto Falchetti
  • Patent number: 4712081
    Abstract: A fuse is arranged to glow brightly when it blows. The fuse incorporates a bulb positioned snugly in a pocket in a base of the fuse housing, the bulb being connected electrically in parallel with fusible metal strip.
    Type: Grant
    Filed: July 11, 1986
    Date of Patent: December 8, 1987
    Inventor: Sydney S. Bosley
  • Patent number: 4695815
    Abstract: An automobile fuse with damage indicator, in which two conductors of a small indicator bulb are connected in parallel with two conductors of a fusible link so that the bulb does not light as long as the fuse is in good condition; but will light immediately by current passing through the load after the fusible link is broken by an overload. The lighting of an indicator at the place where the fuse is installed directly indicates a burnt fuse, particularly at night or in a dark place and trouble shooting and replacement of fuse can be conducted quickly.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: September 22, 1987
    Inventor: Chern Hwang
  • Patent number: 4641120
    Abstract: A safety fuse assembly having a body of insulating material in which a fusible conductor extends embedded in a quenching medium between two electrical contacts. The assembly is provided with an electro-optical indicator connected in parallel with the fusible conductor via a high resistance circuit. To increase the fuse capacity of the safety fuse assembly, the circuit is formed as an electrically conductive, highly resistive thin layer having one or more tapping points and which acts as a voltage or current divider circuit. This makes it possible to maximize the internal volume of the fuse chamber, thereby enabling increases in the length of the fusible conductor and the amount of quenching material, whereby usage of the internal volume of the safety fuse assembly can be optimized.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: February 3, 1987
    Inventors: Karl-Walter Bonfig, Jorg Himmel, Ulrich Kuipers
  • Patent number: 4556874
    Abstract: A fuse-type circuit breaker having a fuse link which is manually pivotal in a housing between an on position and an off position. The fuse link has contact caps which, when in the open position, short-circuit two current contacts which are fixed to the housing. Also provided is an operating state indicator device which includes a light source for the fuse link. The indicator device, at least in the on position, is electrically connected with the two contact caps of the fuse link and with the two current contacts. The indicator device is in parallel with the latter and is provided with a very high electrical resistance relative to the fuse link. The indicator device is in the form of a blinker which incorporates a capacitor, a first diode connected ahead of the capacitor, and a charging resistor as well as a glow lamp connected in parallel with the capacitor and in series with a discharging resistor.
    Type: Grant
    Filed: August 20, 1982
    Date of Patent: December 3, 1985
    Assignee: Linder GmbH Fabrik Elektrischer Lampen und Apparate
    Inventor: Klaus Becker
  • Patent number: 4527143
    Abstract: A safety fuse cartridge having only a single through-bore necessary in a porcelain body that forms an inner chamber in which a fuse wire, which is embedded in a bed of sand in the chamber, extends between a lower contact base and an upper contact head. The cartridge is provided with an indicator which includes a glow lamp that is connected in parallel to the fuse wire via a high-valued resistor which is also embedded in the same bed of sand. The high-valued resistor can be surrounded by a sleeve or tube of insulating material, especially a tube of silicon or steatite. The resistance value of the resistor is preferably 500 to 1000 megaohms.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: July 2, 1985
    Inventor: Bernhard Thienel
  • Patent number: 4484185
    Abstract: A safety plug to an outlet box receptacle, which includes an overcurrent protection device, and engaging devices for engaging the safety plug adapter both to flanged portions of the outlet box face plate and to the electric cord so that it is difficult for a small child to remove the electric cord connecting plug from the adapter, or the adapter from the outlet box receptacle. The adapter may also include a voltage-actuated light-emitting device to indicate when the outlet box receptacle is energized, and a spring-loaded adapter receptacle cover plate.
    Type: Grant
    Filed: August 12, 1983
    Date of Patent: November 20, 1984
    Inventor: James D. Graves
  • Patent number: 4394602
    Abstract: An enclosed electrical device (42) includes an electrical circuit (50) having elements (48-68) which lie substantially in and along a plane (115). A member (70) is applied to a one side and a member (85) is applied to another side of the circuit (50) for at least partially enclosing the same. Conductors (48) and (49) of circuit (50) are fixedly penetrated, preferably by pins (74) which are fixedly engaged to enclosure members (70) and (85). Such engagement is advantageously provided by making the pins (74) an integral part of member (70), for example by including pins (74) in a premolded member (70). Such engagement is also advantageously provided by making pin-engaging sockets (94) an integral part of member (85), also for example by including the sockets (94) in a premolded member (85). By a preferred friction fit of pins (74) and sockets (94), the enclosure members (70) and (85 ) and circuit elements (48-68) are sufficiently fixed relative to one another to resist forces applied thereto in service.
    Type: Grant
    Filed: November 25, 1981
    Date of Patent: July 19, 1983
    Assignees: Western Electric Co., Inc., Bell Telephone Laboratories, Inc.
    Inventors: Waldo D. Apgar, Charles L. Davis, Loring D. Emery, Jr., Werner F. Esseluhn, Walter R. Holbrook
  • Patent number: 4157486
    Abstract: An electroluminescent display device includes at least two conductive leads spaced from each other with a light-emitting element electrically coupled between such leads. A transparent, insulating base is formed about and between the leads. The base encapsulates both the leads and the light-emitting element.At least one lateral portion of each lead extends beyond the base and substantially conforms to the configuration of the base. In conforming such lateral portions, they are preferably wrapped around the base and fixed to it. These lateral portions are arranged so that light from the light-emitting element may pass axially through the base and out of its ends. In addition, light may pass laterally out of the base.The device may also be used for circuit protection purposes. To so use the device, a protective element is electrically coupled between the leads so that upon the occurrence of an overload condition in an external circuit coupled to the lateral portions, the protective element decouples the leads.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: June 5, 1979
    Assignee: Western Electric Company, Inc.
    Inventor: Charles R. Fegley
  • Patent number: 4149215
    Abstract: A fused electrical terminal unit has a neon indicator lamp in parallel with the fuse, the lamp being mounted in a bayonet-fitting hole in a connector bar of the unit and being connected by a spring to the other connector bar of the unit.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: April 10, 1979
    Assignee: C. A. Weidmuller KG
    Inventor: Werner Strich
  • Patent number: 4035754
    Abstract: Fuse boxes for motor vehicles, in which fuse elements are carried on a support plate mounted on a box containing a light source. Each fuse element has a region of small cross-section overlying a respective one of a plurality of apertures in the support plate. When the small cross-section region of a fuse element melts the underlying aperture is exposed. Light from the light source passes out through said aperture to illuminate a circuit symbol adjacent the support plate thereby giving a visible indication of fuse element failure.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: July 12, 1977
    Assignee: General Motors Corporation
    Inventor: Helmut Kleinbohl