| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Magnet switch for starters | US653269 | 1996-05-24 | US5656981A | 1997-08-12 | Masami Niimi; Tsutomu Shiga; Nobuyuki Hayashi |
| In a starter, when a magnet switch is operated for starter operation, an auxiliary movable contact connected to a main movable contact by a holding member comes into contact with an auxiliary stationary contact to supply an electric current from a battery through resistors, auxiliary stationary contact and auxiliary movable contact to apply a low voltage to a motor for low speed rotation. Subsequently, as a plunger of the magnet switch moves further, the main movable contact comes into electrical contact with a main stationary contact, so that the resistors are short-circuited and the electric current from the battery flows to the motor without flowing through the resistors to drive the motor for high speed rotation. | ||||||
| 162 | Integral electrical circuit controller | US161040 | 1993-12-03 | US5541561A | 1996-07-30 | Kurt A. Grunert; John A. Wafer |
| An integral electrical circuit controller apparatus selectively connects a load to a power source and includes an electrical contactor having contacts, a circuit breaker having separable contacts connected in series with the electrical contactor and a trip mechanism responsive to current flowing through the separable contacts for tripping the contacts open in response to predetermined current conditions, and a current throttle impedance for limiting short circuit current. The trip mechanism and the electrical contactor independently interrupt current flowing through the electrical contactor and the circuit breaker. The current throttle impedance limits short circuit current flowing through the electrical contactor and the circuit breaker until current is interrupted. The electrical contactor may include an overload relay. The current throttle may include a coiled conductor of nichrome or iron wire enclosed in a dielectric housing. The coiled conductor may have a generally cylindrical shape and may be user-modifiable. | ||||||
| 163 | Electric switch device with separable contacts including fixed contact mounted current limiter and shunt conductor | US362911 | 1994-12-23 | US5495083A | 1996-02-27 | Juan Aymami-Pala; Joel Devautour; Jean-Pierre Guery; Michel Rapeaux |
| An electrical switch device with separable contacts is provided with a shunt conductor adapted to receive one end of the arc that is struck when the contacts separate after it has jumped a dielectric gap. The shunt conductor determines an interim arc current path in which is a current limiter device. | ||||||
| 164 | Current throttle technique | US947236 | 1992-09-18 | US5268661A | 1993-12-07 | Kurt A. Grunert; John A. Wafer; Ronald A. Cheski, deceased |
| A circuit interrupter characterized by a movable contact on a contact-carrying arm movable between open and closed positions of a stationary contact mounted on one leg of a U-shaped conductor with another leg secured to the circuit breaker housing with a current throttling resistive element being disposed within the U-shaped conductive element for limiting the amount of fault let through current. | ||||||
| 165 | Electrical current interrupter | US894844 | 1992-06-04 | US5193041A | 1993-03-09 | Louis M. J. Chanois |
| An electrical circuit interrupter for connection between two conductors has a first fixed contact electrically directly connected to one of the conductors, a second fixed contact adjacent the first fixed contact, a movable contact electrically directly connected to the other of the conductors, and a positive-temperature-coefficient resistor connected between the first and second fixed contacts. The movable contact is displaceable between a first closed position engaging only the first fixed contact, a second position engaging only the second contact, and an open position engaging neither of the fixed contacts, so that in the first position current can flow between the conductors without passing through the resistor, in the second position current flows through the resistor and current flow is limited thereby, and in the open position current cannot flow between the conductors. | ||||||
| 166 | Oxide resistor | US168136 | 1988-03-14 | US4943795A | 1990-07-24 | Takeo Yamazaki; Satoru Ogihara; Tetsuo Kosugi; Shingo Shirakawa; Shinichi Owada |
| A composite sintered oxide resistor comprising crystal grains of zinc oxide and crystal grains of a zinc oxide compound of other metal or semi-metal element than zinc, and a grain boundary layer having an electric resistance equal to or lower than that of the crystal grains of zinc oxide between the individual crystal grains and which has a very large withstanding capacity against switch surge, a small non-linear coefficient of voltage in the voltage-current characteristics, a positive, smaller resistance-temperature coefficient, and a small percent change in resistivity after heat treatment at 500.degree. C. in the atmosphere. | ||||||
| 167 | Current limiting circuit breaker | US465398 | 1974-04-29 | US3943316A | 1976-03-09 | Clark L. Oster |
| A current limiting circuit breaker having for each pole, a pair of main contacts separable upon operation of a thermally and electromagnetically operable tripping device and a pair of auxiliary contacts for current limiting in series with the main contacts and in parallel with a transformable resistor having a positive temperature coefficient of resistance. The auxiliary contacts are separable when an electromagnet is energized by a fault current which simultaneously energizes a field magnet to produce a transverse magnetic field across the auxiliary contacts and the arc formed between them when separating. This simultaneous action of electromagnet and field magnet coacting for rapid contact separation and lengthening of the arc upon flow of a fault current serves to increase arc voltage almost instantaneously to that of the source, about which time the fault current is totally shunted into the resistor. One of the main contacts of each pole is carried by a movable contact blade. The contact blades have tapered mounting end portions which extend through an elongated molded plastic crossbar, the movable contact blade for each pole being mounted in spaced apart relation in the common crossbar. A metallic insert is embedded in the molded plastic crossbar, the metallic insert having spaced apart openings located to permit the tapered mounting end of the contact blades to extend therethrough. | ||||||
| 168 | Current-limiting device for low-voltage electrical power systems | US50579274 | 1974-09-13 | US3906413A | 1975-09-16 | CLAUSING CHALLIS I |
| A current-limiting device is formed as a self-contained electrical component having terminals which may be identical to fuse terminals to allow the interchangeable connection of the device in a low-voltage circuit with a current-limiting or conventional fuse. The device is formed of a plurality of contacts which engage the opposite edges of a spirally wound coil, with the contacts sequentially opening to gradually insert the turns of the spirally wound winding in series with the circuit in which the device is connected. A magnetic core surrounds the windings in order to increase the inductance of the coil.
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| 169 | Piston actuated switch with screw threads on piston and housing | US36046273 | 1973-05-15 | US3832505A | 1974-08-27 | WONG F |
| The invention comprises a cylindrical housing having an internal telescopic split bore for receiving a solenoidally actuated piston. The piston has an extremity spring biased and anchored and the other extremity has disposed thereon a resistive contact. The split bore is conductively coated and separated by an insulative medium. The resistive contact on said piston is disposed to engage one of said conductive contacts in response to the excitation of the solenoid to permit conduction under the control of the resistive contact. Removal of the excitation permits the piston to return to its original position under the control of the spring bias. The amplitude of make and break of contact currents is controlled by the resistive element during the initial stages of switching.
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| 170 | Non-sparking electrical switch | US3676622D | 1971-05-28 | US3676622A | 1972-07-11 | BRUMBELOW JOSEPH S |
| An electrical switch having contacts which make and break is provided with an inhibitor which inhibits sparking between the contacts. The switch has a movable contactor whose arms carry protruding contacts disposed to be brought against the fixed contacts of the switch. The inhibitor is mounted to move with the contactor and has resilient arms which diverge from the contactor arms when the switch is open. The inhibitor arms have apertures for receiving the protruding contacts of the contactor. The inhibitor''s resistance is large relative to the resistance of the contactor. Closure of the switch causes the inhibitor arms to be first brought against the fixed contacts and then causes the divergence of the arms to decrease until the protruding contacts extend into the apertures and close upon the fixed contacts.
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| 171 | Slide switch | US3609257D | 1970-01-27 | US3609257A | 1971-09-28 | JINSENJI SEI |
| A slide switch in which either of fixed or movable contact elements have electrically high resistance portions formed at portions where fixed and movable contact elements start to contact with each other and at portions where fixed and movable contact elements start to move away from each other.
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| 172 | Current limiting circuit | US3529210D | 1968-02-26 | US3529210A | 1970-09-15 | ITO TOSHIO; MIYAMOTO TSOHIO; MURAI YUTAKA; WADA YUICHI |
| 173 | Electric circuit breaker with assisted arc interruption | US3436597D | 1967-08-24 | US3436597A | 1969-04-01 | HURTLE RALPH L |
| 174 | Current interrupter | US48137065 | 1965-08-20 | US3388295A | 1968-06-11 | JOHN MISENCIK; LEE SUNG C |
| 175 | Built-in arc suppression for electromagnetic devices | US44398565 | 1965-03-30 | US3233150A | 1966-02-01 | MAYNARD WHEELER D |
| 176 | Resistance switch | US7458249 | 1949-02-04 | US2510792A | 1950-06-06 | BAKER WILLIAM E |
| 177 | Thermostatic circuit breaker with contact arc prevention | US59340645 | 1945-05-12 | US2498039A | 1950-02-21 | GUNN TOWNSEND M |
| 178 | Circuit interrupter | US21603327 | 1927-08-29 | US1912932A | 1933-06-06 | CRAGO SAMUEL D |
| 179 | Arc extinguishing means | US36186529 | 1929-05-10 | US1825298A | 1931-09-29 | BAKER BENJAMIN P |
| 180 | Giqtje electriqtre | US1428821D | US1428821A | 1922-09-12 | ||
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