...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 |
| 7292130 | Fusible link and battery fuse unit containing the fusible link A fusible link adapted to be connected to a battery terminal and a compact and thin battery fuse unit that contains the fusible link and battery terminal. The link, formed by punching out an electrically conductive metallic plate, includes an input side connecting-s... | 11/06/2007 |
| 6992560 | Fuse structure The invention relates to a fuse structure, which includes a non-conductive tube connecting both ends with two respective metal caps and an inner resistance filament being inside. The improvement is an aperture being formed on the non-conductive tube for exhausting i... | 01/31/2006 |
| 6930585 | Miniature fuse A box-like case for a miniature fuse comprises a first and second plastic assembling members having the same form, each of the assembling members has a base part provided with a pair of first grooves, a side plate part formed as a unitary one-piece structure as the ... | 08/16/2005 |
| 6762670 | Fuse apparatus with explosion-proof structure The present invention relates to a fuse apparatus with explosion-proof structure, which includes a connector connecting with two conductive legs, a fuse mounted on the connector, and a cap covering the connector. The characteristic is to provide a horizontal hole an... | 07/13/2004 |
| 6624736 | Fuse housing with rate release control plug A fuse housing assembly is disclosed that includes a rate release plug that prevents the emission of large quantities of dielectric oil from a transformer tank upon removal of a fuse holder from a bayonet-type fuse holder. The rate release plug allows pre... | 09/23/2003 |
| 6542063 | Electric fuse A pair of electrodes are provided through a base. A cap and the base constitute a chamber, and are connected to each other by fitting projections provided on the base, into locking grooves formed in the cap. A fuse element is connected to upper portions o... | 04/01/2003 |
| 5179436 | Electric fuse The invention relates to an electric fuse with a fuse element located in a housing which encases a fuse element chamber. The fuse element melts and thus cuts out the fuse under an overcharge, whereby the temperature and pressure in the interior of the cas... | 01/12/1993 |
| 5097244 | Bus mounted capacitor expulsion-type fuses An electrical fault protective device for providing power interruption in electrical circuits rated up to 10,000 amperes and above. The device comprises a single- or double-vented expulsion-type fuse, connected at one vented end to a hollow bus and at the... | 03/17/1992 |
| 4970619 | Electrical fault protective device An electrically conductive expulsion fuse manifold and bus for connecting and mounting a plurality of fuses which upon operation expel gases into the manifold is shown and described. The expulsion fuses are attached to the manifold by means of clamps, fla... | 11/13/1990 |
| 4904977 | Supersonic expulsion fuse This invention provides a supersonic expulsion fuse for interrupting fault currents in high voltage alternating current networks. It creates an arc interruption region with a long length of supersonic turbulent flow and little or no subsonic plasma. This ... | 02/27/1990 |
| 4857879 | Drop-out expulsion fuse An ejecta trap for a drop out expulsion fuse of the type comprising an elongate insulating body with a conductive head fitting and tail socket. The tail socket is pivotally connected to the tail fitting and the head and tail fittings are adapted to electr... | 08/15/1989 |
| 4808962 | Fuse A fuse comprises a housing formed of synthetic resin, and the housing including a peripheral wall having an upper opening, a fuse-element, which is melted by an excessive electrical current flowing therethrough, fixedly disposed in the housing and at leas... | 02/28/1989 |
| 4736181 | Fuse link A fuse link for an expulsion fuse used in connection with high voltage electrical transmission lines. The fuse link has an outer assembly in the form of a tube, a fuse element housed within the outer assembly, electrical connecting means serially connecte... | 04/05/1988 |
| 4628291 | Full range oil expulsion fuse An oil expulsion fuse having a pair of contacts solidly secured to the ends of a high strength outer insulating tube. A resilient non-conducting inner sleeve is mounted within the bore of the insulating tube and contact assembly, the sleeve and tube being... | 12/09/1986 |
| 4628292 | Under oil expulsion fuse cartridge assembly An under oil expulsion fuse cartridge assembly includes a tubular housing of non-electrical conductive material, an electrically conductive contact removably threadedly mounted on each end of the housing, and a replaceable fuse assembly removably received... | 12/09/1986 |
| 4275372 | Protected electrical inductive apparatus Protected liquid-filled electrical inductive apparatus having a dry well fuse assembly which includes a dry well fuse holder sealingly disposed through an opening in the associated metallic casing, separate from the electrical bushings, and a removable fu... | 06/23/1981 |
| 4205295 | High continuous current capacity oil expulsion fuse An oil expulsion fuse has multiple rupture-resistant fuse wire arc bores for providing fault current protection in high voltage distribution circuits in the 25-35 KV range. In preferred forms, the fuse has a Teflon core defining three discrete, small diam... | 05/27/1980 |
| 3946351 | Shielded fuse assembly Two housing halves are joined to form a housing surrounding an electrical fuse, a sealing gasket being provided at the joint between the housing halves. A corona shield is embedded wholly within each housing half, each shield terminating on its respective... | 03/23/1976 |