"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 8179224 | Overcurrent protection structure and method and apparatus for making the same The overcurrent protection structure according to the present invention mainly comprises a fusible fuse structure unit disposed in a coating, and the both ends of the fusible fuse structure unit extend outwardly beyond the coating and form a first electrode and a se... | 05/15/2012 |
| 7268661 | Composite fuse element and methods of making same A composite fuse element includes a network or matrix of conductive material that is in contact and interspersed with arc suppressing materials at a particle level. In such a matrix, the conductive (e.g., metal) network and the arc suppressing material particles pro... | 09/11/2007 |
| 7138899 | Fuse element with a temporary quasi-hermetic seal of its interior A fuse element includes a fusible conductor which extends within a gas filled cavity in a cylindrical tube. The fuse element includes a cylindrical tube comprising, an electrical insulator between two end faces of the tube, two end caps of an electrically conductive... | 11/21/2006 |
| 7119652 | Method of avoiding arc prolongation on current interruption, particulary a fuse A fuse assembly is disclosed. The fuse assembly includes an electrically insulating hollow casing of a substantially rectangular parallelepiped shape in outline, a fuse element provided within the casing and supported by the casing, the casing having first and secon... | 10/10/2006 |
| 6946608 | Pyromechanical battery pole disconnect element A pyromechanical battery pole disconnect element, includes a housing (1) in which an electrical conductor is located, a pyrotechnic active element (14) including a breaking piston with a disconnect element (7) to sever the electrical conductor a... | 09/20/2005 |
| 6903649 | Fuse with fuse link coating A fuse that includes an arc energy reducing coating to reduce arc energy during a short-circuit and/or a full voltage overload current interrupt is described. The fuse includes end conductor elements, and at least one fuse element secured between and making electric... | 06/07/2005 |
| 6888440 | Fuse with fuse link coating A fuse that includes an arc energy reducing coating to reduce arc energy during a short-circuit and/or a full voltage overload current interrupt is described. The fuse includes end conductor elements, and at least one fuse element secured between and making electric... | 05/03/2005 |
| 6873243 | Small-footprint fuse A method and an apparatus for protecting an electrical circuit against excessive currents by a fuse assembly. The fuse assembly is configured to interrupt the flow of current through the electrical circuit by increasing dielectric separation between two ends of a fu... | 03/29/2005 |
| 6710699 | Fusible link The fuse is used in the medium- and high-voltage sector and has two spaced-apart power supply connections (2, 3) and an active part (1). The active part comprises a fusible, current-carrying fuse element and an arc-extinguishing medium. The fuse elemen... | 03/23/2004 |
| 6642834 | High voltage automotive use The invention is a blade fuse having a housing section and a fusible element. The housing includes an insulating portion or tab extending from the housing section, and disposed between opposite ends of the fusible element. One aspect of the invention is a... | 11/04/2003 |
| 6614339 | Exhaust control device for use with circuit interrupter An exhaust control device for use with a circuit interrupter includes a casing having a first expansion chamber and a second expansion chamber that are operationally disposed upstream of a heat sink and a damper, with the second expansion chamber being in... | 09/02/2003 |
| 6590490 | Time delay fuse In an exemplary embodiment of the invention, a fuse element for a time delay fuse includes a conductive fuse element member, a fuse link formed within the member, and a heat sink coupled to the member. The heat sink draws heat from the fuse element member... | 07/08/2003 |
| 6577222 | Fuse having improved fuse housing 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... | 06/10/2003 |
| 6507265 | Fuse with fuse link coating A fuse that includes an arc energy reducing coating to reduce arc energy during a short-circuit and/or a full voltage overload current interrupt is described. The fuse includes end conductor elements, and at least one fuse element secured between and maki... | 01/14/2003 |
| 6452474 | Barrier fuse The invention is a housing for a blade fuse, and a blade fuse that uses that housing. The housing includes a first generally planar wall and a second generally planar wall. The first and the second generally planar walls each have an outer surface and an ... | 09/17/2002 |
| 6160471 | Fusible link with non-mechanically linked tab description The invention is a fusible link-containing structure for an electrical fuse. The structure includes an metallic or other conductive element having a fusible link. The structure further includes at least one arc-quenching tab secured to the metallic elemen... | 12/12/2000 |
| 6157286 | High voltage current limiting device A high voltage, current limiting device is connected in series with a high voltage power source and a protected load to interrupt current for an over-current condition [Typically 50 kA]. The current limiting device includes a current sensor/isolator and a... | 12/05/2000 |
| 6005470 | Arc-quenching filler for high voltage current limiting fuses and circuit interrupters A high voltage circuit interrupter has a surface modified pulverulent arc-quenching filler composition, with gas-evolving material is bound to the surfaces of the arc-quenching filler by a binder. The pulverulent arc-quenching filler can be selected from ... | 12/21/1999 |
| 5986534 | Dropout fuse having electrical energy absorbing device The present invention relates to a fuse arrangement, which is particularly suited to high voltage applications, but also has applications across a broad voltage range. The fuse arrangement comprises a fuse link arranged to be connected in a current carryi... | 11/16/1999 |
| 5903208 | Stitched core fuse A fuse includes a solid silicone rod that has a fuse element stitched repeatedly through the rod so that the stitches extend longitudinally along the length of the rod. The stitched silicone rod is secured within a fiberglass tube, and a silica sand pulve... | 05/11/1999 |
| 5889458 | Fuse assembly having radiation reflecting means A fuse assembly including a housing and a fuse element which fuses open for protection against overcurrent or short-circuit current flows. The fuse assembly also includes reflecting means such as metal polished surfaces for reflecting radiation rays gener... | 03/30/1999 |
| 5883562 | Amorphous resin arc suppression fuse There is disclosed an arcless fuse in which adverse effects on an equipment due to an arc discharge, produced when the fuse is melted, are prevented, and also melted metal is prevented from dissipating. An arcless fuse includes a fuse element 25 having op... | 03/16/1999 |
| 5793275 | Exothermically assisted arc limiting fuses There is described a fuse comprising a housing and a current carrying strip of metal comprising a fuselink enclosed in the housing, each end of which electrically extends through the housing as an electrical connection. There being at least one first sect... | 08/11/1998 |
| 5770994 | Fuse element for an overcurrent protection device A fuse element having a substantially planar strip formed of an electrically conductive metal having a central portion and opposite end portions. The central portion is provided with a plurality of diamond-shaped perforations. The perforations form a plur... | 06/23/1998 |
| 5713124 | Method of assembling a fuse housing A current-limiting device is provided having a low profile configuration (generally flat polyhedron) that defines a cavity of predetermined dimensions and an elongated circuitous path through the cavity. The device also includes provisions for supporting ... | 02/03/1998 |
| 5631621 | Cartridge thermal fuse with an adhesive metal excellent in adhesion with the melted fusible alloy The thermal fuse comprises a fuse base having a wire fuse element of a fusible alloy connecting lead wires and a cartridge forming an enclosed space for accommodating the wire fuse element by surrounding the wire fuse element and closing both ends thereof... | 05/20/1997 |
| 5572181 | Overcurrent protection device An overcurrent protection device and a method for the production thereof is provided wherein a fusible link is bonded across a pair of electrodes. A composite layer envelops the fusible link and is formed from a gelatinous composition. The composite layer... | 11/05/1996 |
| 5485136 | Load break disconnecting device with solid arc suppression means An improved load break disconnecting device is disclosed, comprising a conductive portion having a non-gassing fuse, a fuse cartridge having first and second ends and enclosing said fuse, a conducting hinge assembly and conducting stationary contact means... | 01/16/1996 |
| 5479147 | High voltage thick film fuse assembly A thick film fuse assembly for high voltage, high amperage, high reliability applications. In a first embodiment the fuse assembly consists of an insulative substrate on which a parallel array of low mass thick film fusible elements are disposed. Thick fi... | 12/26/1995 |
| 5446436 | High voltage high power arc suppressing fuse A high voltage high power fuse (5) for use in a low pressure environment such as space. The fuse (5) comprises a fuse element (1) which is electrically connected to two conductive pads (2) and surrounded by an elastic medium (3). When the fuse element (1)... | 08/29/1995 |
| 5426411 | Current limiting fuse A fuse that includes an insulative 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 include... | 06/20/1995 |
| 5420560 | Fuse An improved compact fuse has a fusible metal wire stretched between a pair of metal terminals. The wire and the portion of the terminals to which the wire is connected are enclosed in an envelope made of insulation material. The ends of the terminals prot... | 05/30/1995 |
| 5406245 | Arc-quenching compositions for high voltage current limiting fuses and circuit interrupters Arc-quenching coating compositions are provided with effective arc-extinguishing properties and improved track resistance properties, and are relatively easy to apply in liquid form. The coating compositions are used, for example, in high voltage current ... | 04/11/1995 |
| 5262750 | Ceramic coating material for a microfuse A ceramic coating for a subminiature fuse includes sodium silicate and silicon dioxide applied over a subminiature fuse wire in slurry form. The coating gives the fuse arc quenching properties.... | 11/16/1993 |
| 5245308 | Class L fuse A Class L fuse comprises a pair of conductive elements at the opposite ends of the fuse. A fusible element is secured to and makes electrical contact with each of the conductive elements. A generally cylindrical housing encloses the fusible element. Final... | 09/14/1993 |
| 5153553 | Fuse structure A fuse having a rated current for protecting electric or electronic circuitry comprises a body having a blow chamber. A fusible element is contained within the body and extends through the blow chamber. A contact is disposed on the body electrically conne... | 10/06/1992 |
| 5148140 | Electrical fuses having improved short-circuit interruptions characteristics The disclosed electrical fuse has a fuse link in a filling of sand and a binder that imparts high thermal conductivity to the filler. The binder is a shiny coating on the grains of sand extending from grain to grain. It is an amorphous coating. The exempl... | 09/15/1992 |
| 5140294 | Safety fuse element and method of manufacturing such safety fuse element A continuous hollow compartment open at both opposite ends thereof is arranged within an electrically insulating housing. Tubular portions of end contacts extend into ends of the hollow compartment and are completely covered at their inner surfaces by an ... | 08/18/1992 |
| 5027101 | Sub-miniature fuse An electrical component, particularly a fuse for a surface-mount component, is formed by sputtering an aluminum conductor onto a square tube, sleeving the tube into an outer tube, filling the assembly with a room-temperature vulcanizing silicone sealant, ... | 06/25/1991 |
| 5017740 | Fused hermetic terminal assembly including a pin guard and lead wire end connection securing device associated therewith A hermetic terminal assembly for a housing including a fuse-like area positioned in the outer pin segment of a terminal pin extending in sealed relation through the body member of the terminal assembly which body member can be sealed to a housing wall, th... | 05/21/1991 |