...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7336477 | Electrical switching apparatus and heat sink therefor A heat sink is for an integrally fused low-voltage power air circuit breaker including a line terminal and electrical bus work coupled to a current limiter. The line terminal, electrical bus work, and current limiter contribute to the formation of a thermal dam. The... | 02/26/2008 |
| 7209027 | Fuse structure A fuse structure is described. The fuse structure includes a first region adapted to be coupled to a voltage source, a second region adapted to be coupled to a ground, and a current flow region disposed between the first and second regions. The current flow region h... | 04/24/2007 |
| 7176780 | Fuse unit A fuse unit includes first and second fuse devices. Each of the fuse devices includes a attaching portion to be attached to a battery terminal of a battery, a housing provided on the attaching portion and having a cavity which is opened forward and backward of the h... | 02/13/2007 |
| 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 |
| 7109839 | Fuse link, method for the production thereof and soldering substance A fuse link, especially for low voltage, high-breaking-capacity fuses, includes at least one fusible conductor having a soldering substance in a solder depot of a carrier, the solder being tin-based and the carrier being copper-based. The solder contains a tin alloy... | 09/19/2006 |
| 7106164 | Apparatus and method for electronic fuse with improved ESD tolerance Tolerance to ESD is increased in an electronic fuse by providing at least one non-conductive region adjacent to a conductive region on the surface of an insulator. Such an arrangement reduces the thermal stresses imposed on the insulator in high current applications... | 09/12/2006 |
| 7064648 | Alloy type thermal fuse and material for a thermal fuse element An alloy type thermal fuse is provided in which a Bi—Sn alloy is used as a fuse element, which has an operating temperature of about 140° C., which, even when used at a high power, can safely operate, and in which dispersion of the operating temperature can be su... | 06/20/2006 |
| 7046115 | Fuse box A fuse box includes a lower cover and an upper cover mounted on an intermediate case to form a box. A large-capacity fuse having an input terminal and an output terminal projecting in substantially opposite directions from one side surface of a body of the fuse is a... | 05/16/2006 |
| 6932650 | Fused battery terminal connector A battery terminal connector having at least one ferrule at one end of the connector; a body portion at the other end of the connector; a generally flat base portion between the ferrule and the body portion; and a removable fuse, having two terminals, and positioned... | 08/23/2005 |
| 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 |
| 6902434 | Battery fuse bus bar assembly A battery fuse assembly for a storage battery having a threaded post terminal is provided. The fuse assembly includes a bus bar having a planar surface and a first opening extending therethrough, at least one threaded terminal stud extending from the planar surface ... | 06/07/2005 |
| 6801433 | Method and apparatus for cooling electrical fuses An apparatus for cooling electrical protective devices comprises an electrical protective device mounted to at least one electrical terminal, wherein the electrical terminals are cooled to indirectly cool the electrical protective devices. A pressurized coolant sour... | 10/05/2004 |
| 6510047 | Conductive heat sink A conductive heat sink is electrically interposed between a fuse and a switching apparatus within a watertight case of a network protector. The heat sink is advantageously configured to conduct current between the switching apparatus and the fuse. During ... | 01/21/2003 |
| 6448882 | Large current fuse A large current fuse 21 which comprises a metallic fusing member 22 and a resin housing 23, the metallic fusing member 22 including a first conductive plate 25, a second conductive plate 26, and a fusing part 27, the resin housing 23 having an open space ... | 09/10/2002 |
| 6294978 | High-current fuse for vehicles A high-current fuse for vehicles is provided. This high-current fuse includes a conductive plate having a fuse and terminal connecting portions on both ends, and a resin case into which the conductive plate is insert-molded. A heat radiating portion for r... | 09/25/2001 |
| 6237698 | Terminal protection system for portable power tools A thermal control circuit (49) for inexpensively protecting the power interface of cordless and dual-mode powered devices (12), such as hand-held power tools and appliances. The powered device includes a motor (11) that is operable in a preselected voltag... | 05/29/2001 |
| 6144283 | Temperature detectable large-current fuse and method of assembling the same A temperature detectable current fuse comprises a temperature detecting fuse having a fusible portion, a current fuse having a fusible portion and a table portion provided at the fusible portion thereof, on which the fusible portion of the temperature det... | 11/07/2000 |
| 6011458 | Large-current fuse unit In large-current fuse unit, a large-current fuse has a pair of terminals interconnected by a fuse element, and a housing receives the large-current fuse therein, and a temperature fuse is mounted within the housing, and is disposed in close proximity to t... | 01/04/2000 |
| 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 |
| 5963122 | Large-current fuse unit In large-current fuse unit, a large-current fuse has a pair of terminals interconnected by a fuse element, and a housing receives the large-current fuse therein, and a temperature fuse is mounted within the housing, and is disposed in close proximity to t... | 10/05/1999 |
| 5927060 | Electrically conductive yarn A composite longitudinally balanced electrically conductive yarn has a textile fiber core yarn wrapped with a minimum of two, and a maximum four, filaments. One to four of the filaments are metal filaments with the remainder being synthetic filaments. Eac... | 07/27/1999 |
| 5900798 | Current limiting fuse having a non-directional fusing characteristic In the metal piece 32 which diffuses into the fuse element so that an alloy layer is generated, there is formed an expanding slot 30, which is inserted and pressured in the fusing portion 25b of the fusible body 25 which forms the fuse element. Due to the... | 05/04/1999 |
| 5898358 | Vermiculite-coated fuse Fuse comprising ceramic oxide fibers and vermiculite particulate.... | 04/27/1999 |
| 5821847 | Fuse and method of manufacturing same To effectively prevent the efflux at the time of depositing a fusible metal, a fuse includes a clamping piece in the longitudinal middle portion of a fusible element, a fusible metal having a low melting point is clamped by and deposited on the clamping p... | 10/13/1998 |
| 5790007 | Board fuse, and method of manufacturing the board fuse A board fuse includes an insulating board having a through-hole window in the middle of the insulating board and fusible elements laid over the insulating board. Further, the fusible elements are continuous metal wires substantially equal in cross section... | 08/04/1998 |
| 5745024 | Fuse element for slow-blow fuses For providing a fuse element for slow-blow fuses which uses no separate endothermic member, a fuse element for slow-blow fuses in which wings are formed on both sides of slender element portions connecting top ends of a pair of female terminals by way of ... | 04/28/1998 |
| 5661448 | Fuse-link chain and method of forming A chain of fuse-links is made from an electrically conductive metal plate. Each fuse-link P4. has an arc-shaped fusing portion 1 and a couple of terminal portions 4, 4 constituting a pair of wing-shaped members connected to each end of the arc-shaped fusi... | 08/26/1997 |
| 5631619 | Female automotive fuse having fuse clips electrically connected to conductive thermal blocks A female fuse having a one piece fuse link and thermal mass injection molded around a multifinger fuse clips. The fuse link, thermal mass, and fuse clip are enclosed in an insulating housing. The resulting fuse is smaller in size and operates at a cooler ... | 05/20/1997 |
| 5546066 | Delayed-fusion fuse The present invention provides a delayed-fusion fuse by which its predetermined durability can be reliably ensured, and its stable pre-arcing time-current characteristics can be obtained, even when a current exceeding the steady-state current such as a mo... | 08/13/1996 |
| 5528213 | Fuse An embracing portion is formed on a fusible body of metal, and a chip of low-melting metal is embraced by this embracing portion, and a constricted portion of a small cross-sectional area is formed at the fusible body, and a radiating plate is provided in... | 06/18/1996 |
| 5345210 | Time delay fuse A time delay fuse and various subassembly components for that time delay fuse. The fuse includes a housing made of an insulating material. The housing encloses a short-circuit fusible element, preferably a copper or copper alloy strip having a plurality o... | 09/06/1994 |
| 5187463 | Compact time delay fuse A time delay fuse including a fusible element for short circuit protection and a spring-loaded plunger partially contained in an enclosure and restrained by a solder mass for time-delayed overcurrent protection, the fusible element including a segment ext... | 02/16/1993 |
| 5150093 | Time delay fuse for motor starter protection A time-delay fuse having a fuse element with a series of weak spots surrounded by a loose sand filler. The fuse element is connected to a trigger mechanism by solder or other meltable alloy. The trigger section provides overload protection and the fuse el... | 09/22/1992 |
| 5084691 | Controllable fuse A controllable fuse (10; 40; 50; 60; 80) has a pair of isolated conductor pads (26, 27), a solder connection (32; 41; 51) connected to the pads and providing a circuit connection therebetween, and at least one heater (14; 70, 75) to produce heat in respon... | 01/28/1992 |
| 4994779 | Class J time delay fuse A time-delay fuse 10 having a circular fusible element 22 with stress relief section 24. The cylindrical fuse element 22 is connected to a trigger mechanism 30 by solder or other meltable alloy. The trigger section 30 provides overload protection and the ... | 02/19/1991 |
| 4992770 | Fuse with improved spring timer The dual element time delay fuse includes a circuit overload trigger which opens the fuse in response to long term medium circuit overloads, and a short circuit strip disposed in a solid matrix filler for opening the fuse in response to the presence of a ... | 02/12/1991 |
| 4972169 | Spiral wound sand fuse A spiral wound sand fuse has a non-reactive fiber core permitting use of the fuse to interrupt high fault currents in high voltage circuits.... | 11/20/1990 |
| 4839625 | Fuse A fuse comprising a body (20) encapsulating a fuse element (22), said body (20) including a baseplate (16) formed from a material having good thermal conductivity; a pair of elongate terminals (12) being connected at one end to the baseplate (16) through ... | 06/13/1989 |
| 4751490 | Fuse terminal A fuse terminal comprising a fusible conductor formed of a Cu alloy having a conductivity of 20--less than 60% (IACS), the fusible conductor being formed with a narrow fuse portion at an intermediate position, and a pair of connection terminals formed at ... | 06/14/1988 |
| 4680567 | Time delay electric fuse A time delay fuse (10) includes a tubular housing (12) of insulative material with first and second open ends (14, 16). First and second metallic or electrically conductive ferrules (18, 20) are mounted on the first and second ends, respectively, of the t... | 07/14/1987 |