Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7417526 | Self-configuring component by means of arcing A component with an internal conductor is so configured that it is ruptured at a predetermined position while forming an arc, if predetermined current/voltage conditions occur at the terminals of the component. The component includes a circuit element which is so ar... | 08/26/2008 |
| 7286037 | Protective element A protective element with improved spherical segmentation performance during the melting of a low-melting metal member, has a heat-generating member and a low-melting metal member on a substrate, in which the low-melting metal member is heated and blown out by the h... | 10/23/2007 |
| 7265653 | Method of providing a protective component with an adjusted time characteristic of the thermal transfer from a heating element to a fusible element The invention relates to a method for producing a protective component, for example a fuse component or a fusing resistor, including a fusible element and a heating element, which are attached as stacking components to the surface of a substrate. The fusible element... | 09/04/2007 |
| 7088216 | Protective device Protective devices for preventing overcurrent and overvoltage are disclosed. The devices includes a base substrate, a pair of electrodes formed on the base substrate, and a low-melting metal element connected between the pair of electrodes to interrupt the current f... | 08/08/2006 |
| 6566995 | Protective element A protective element contains a heat-generating member and a low melting metal member on a substrate, in which the low melting metal member is molten by the heat generated by the heat-generating member and flows onto electrodes, which causes the low melti... | 05/20/2003 |
| 6489879 | PTC fuse including external heat source An improved PTC fuse assembly is described. The PTC fuse assembly includes a PTC fuse having a PTC material. To expedite heating of the PTC material, the improved PTC fuse assembly includes a die package in thermal communication with the PTC material. The... | 12/03/2002 |
| 6445276 | Electrical fuse for use in motor vehicles A fuse apparatus (1) is provided for selectively interrupting a load current (Ia) flowing between a pair of associated conductor leads. The fuse apparatus includes at least two spaced apart electrically conductive contact elements (5) operative... | 09/03/2002 |
| 6304166 | Low profile mount for metal oxide varistor package and method A low profile mount for a disc varistor. A thermally sensitive switch is provided both for single and multiple electrode embodiments. The switch may be placed in a shorting circuit and include a spring biased conductor prevented from closure by a heat sen... | 10/16/2001 |
| 5907272 | Surface mountable electrical device comprising a PTC element and a fusible link Circuit protection device having a PTC element in series with a fusible element. The device includes a PTC element having first and second electrodes in electrical contact with the PTC element. An insulating layer is disposed on the first and second elect... | 05/25/1999 |
| 5793274 | Surface mount fusing device A thermal fuse device for over-current protection includes a fusing element comprising a conductive strip having a fulcrum point between first and second ends. The fuse strip is connected to first and second terminal pads on a substrate by a first solder ... | 08/11/1998 |
| 5760676 | Electronic part such as PTC thermistor and casing for the same with a fuse In a positive temperature coefficient thermistor, a terminal holding member is provided between an outer casing and an elastic terminal electrically connected to the semiconductor ceramic element. The terminal holding member is formed of a thermoplastic r... | 06/02/1998 |
| 5663702 | PTC electrical device having fuse link in series and metallized ceramic electrodes Electrical devices with a PTC element including a polymer having conductive particles dispersed therein and at least one metallized ceramic electrode. The devices are made by dispersing conductive particles into a polymer to form a polymer PTC composition... | 09/02/1997 |
| 5287078 | Safety fuse apparatus for solid state power controllers A back-up safety device is shown for use with a power controller to prevent damage to circuits with which the controller is used in the event that the controller malfunctions. The safety device has performance characteristics which conforms to selected ci... | 02/15/1994 |
| 4821010 | Thermal cutoff heater A thermal cutoff includes a housing having a resistive coating bonded thereto, and defining a heater for heating the thermal cutoff to its firing temperature.... | 04/11/1989 |
| 4593262 | Time delay indicator fuse A fuse (12) for protecting a circuit and comprising a tube (14) of insulating material having an inner wall surface (16) and an outer wall surface (18) so as to form a fuse housing. The fuse includes two opposite axial ends (20) and (22), and a first (24)... | 06/03/1986 |
| 4328387 | Fail-safe thermostatically controlled circuit for use in apparatus for melting and dispensing thermoplastic material A fail-safe thermostatically controlled circuit is disclosed for use in high-throughput thermoplastic material melting and dispensing apparatus including a hopper into which solid thermoplastic material is deposited for feeding the thermoplastic material ... | 05/04/1982 |
| 4302662 | Control instrument for electric hot plates A control instrument is used for the manually continuously adjustable supply of electric power to electric hot plates in the form of individual power pulses. The control instrument contains a switch, operated by a bimetallic member, whose heater is contro... | 11/24/1981 |
