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 |
| 7301433 | Fuse and truck cable assembly for a rail vehicle third rail current collector A fuse and truck cable assembly for a rail vehicle third rail current collector comprising a truck cable, a cable-engaging element, a fuse canister, a canister closure, a fuse contact element, and a flexible gland arranged so that the fuse can be replaced in the fus... | 11/27/2007 |
| 7209336 | Double-protection circuit protector A circuit protector is connected in a circuit to protect the circuit from overloading. The circuit protector includes a casing inside which first and second terminals electrically connected to the circuit are fixed. A first cantilever member is fixed to the first te... | 04/24/2007 |
| 6995648 | Fuse barrier and power circuit employing the same A power circuit includes a first low voltage power bus, a second low voltage power bus, a fuse electrically connected between the first low voltage power bus and the second low voltage power bus, and a fuse barrier. The fuse has a non-interrupted state and an interr... | 02/07/2006 |
| 6388553 | Conductive polymer current-limiting fuse Conductive polymer current-limiting fuses. when connected in series with conventional mechanical circuit breakers, exhibit extremely low let-through values. Particularly, conductive polymer current-limiting fuses based on conductive elastomeric material a... | 05/14/2002 |
| 5945903 | Resettable automotive circuit protection device with female terminals and PTC element A circuit protection device including a pair of terminals to be electrically connected into an electrical circuit, a pair of spaced current-carrying extensions of the terminals, and an initially low resistance current limiting device extending between the... | 08/31/1999 |
| 5929739 | Fusible link A fuse includes a fuse element having a pair of terminal portions interconnected by a fusible portion, pivot pawls provided between the fusible portion and each of the terminal portions, seat surfaces respectively supporting the pivot pawls thereon, there... | 07/27/1999 |
| 5825274 | Fusible link A fusible link includes a housing which is made of insulating resin, the housing has an opening through which a fuse element is inserted into the housing, a fuse element having a pair of connecting terminal sections and a fusible body connected between th... | 10/20/1998 |
| 5682130 | Circuit protection device with female terminals and PTC element The invention is a circuit protection device comprising a first and a second female terminal. The device further comprises a first fuse clip in electrical contact with the first fuse terminal and a second fuse clip in electrical contact with the second fu... | 10/28/1997 |
| 5670929 | Fusible link A fusible link in which the overlooking of a half-fitted condition of a spacer is positively prevented, and the strength of retaining of the spacer on a housing is increased. Guide walls are formed on an inner surface of the housing (which houses a fuse e... | 09/23/1997 |
| 5629664 | Blade fuse with bifurcated gripping pieces Bifurcated gripping pieces, each having a clearance in a thickness direction of a terminal, are projected from inner edge portions of respective terminals so as to confront each other. An inserting opening of an inserting space is made on a lower surface ... | 05/13/1997 |
| 5608372 | Fuse locking construction for fuse box A fuse locking construction for a fuse box, in which a fuse having a fuse member insert molded in a base made of synthetic resin and a pair of terminal plates projecting out of the base from the fuse member is inserted into a fuse mounting portion so as t... | 03/04/1997 |
| 5583734 | Surge arrester with overvoltage sensitive grounding switch A surge arrester for protecting power distribution equipment from overvoltages has a varistor as the active surge-arresting element. In the event of a persistent overvoltage, an amorphous conductor electrically in series with the varistor heats up to or a... | 12/10/1996 |
| 5311393 | Transient voltage surge suppressor with I2 R/I2 T overcurrent protection switch A transient voltage surge suppressor comprises a first series circuit formed of a normally-off voltage surge-responsive gas discharge tube and a first voltage clamping device connected across input terminals to which a line voltage is applied. It also inc... | 05/10/1994 |
| 4885561 | Transformer overload and fault protection apparatus An overload and fault protector for a distribution transformer or the like is disclosed. A series-connected high range current-limiting fuse and a low range expulsion type fuse is provided with a transformer lead disconnect or ejection mechanism to insure... | 12/05/1989 |
| 4751603 | Safety devices Hand-held electrical apparatus having an electrical detector in the form of a conductive sensor adjacent to any exposed electrical part so that if the apparatus becomes wet or damp the water will form path of conduction between the exposed electrical part... | 06/14/1988 |
| 4460886 | Pressure-operated switch for a current-limiting, high-voltage interrupting module An improved switch in which a contact is moved away from a stationary contact by ignition of a power cartridge. The ignited power cartridge pressurizes a chamber defined by the stationary contact and an insulative trailer mounted to the movable contact to... | 07/17/1984 |
| 4158830 | Fitting for a circuit-interrupting device An end fitting for a high-voltage fuse is disclosed. A conductive end ferrule of the fuse has an enlargement formed near one end thereof, the enlargement having a shoulder remote from the fuse end which defines an exhaust port. The end fitting has a pair ... | 06/19/1979 |
| 4057775 | Support assembly for fusible element of a high voltage fuse A support assembly for a helically wound fusible element of a high voltage fuse is fabricated from two identical pieces of insulating material that are formed with mating center slots so that the pieces can be reversed and joined one over the other along ... | 11/08/1977 |
