| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 241 | Current limiting interruption of currents at high voltages | US3737724D | 1971-08-05 | US3737724A | 1973-06-05 | SALGE J; HARTEL H |
| An improved circuit for the current limiting interruption of alternating or direct currents in a power main at high voltages of the type wherein an energy absorbing circuit and a capacitor are each connected in parallel with a circuit path including a commutation or interrupter switch so that upon opening of the switch the current flowing therein will be commutated into the parallelly connected circuits wherein the current will be reduced to a residual value which is switched off by a subsequently connected circuit breaker. A further commutating switch is connected in series with the first mentioned commutation switch and an ohmic resistance connected in parallel therewith so that the total series resistance of the ohmic resistance and the arc resistance of the first mentioned commutation switch will be sufficient to cause the commutation of the main current into the energy absorbing and capacitor circuits.
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| 242 | High sensitivity electromechanical actuators | US3535590D | 1968-12-09 | US3535590A | 1970-10-20 | MAYER FERDY |
| 243 | Connection equipment for high voltage switching device | US3532843D | 1967-08-21 | US3532843A | 1970-10-06 | PUCHER WALTER |
| 244 | Circuit breaker with circulating oil arc quenching means | US29468563 | 1963-07-12 | US3281561A | 1966-10-25 | ERWIN MARX; ADIL ERK; HOLGER ANN; JOACHIM SCHAPER; WILFRIED KRUCKEWITT; RUDOLF GROSSKOPF; DIETER KONIG; OTTO APOSTEL |
| 245 | Positive action circuit breaking switch | US36341764 | 1964-04-29 | US3264438A | 1966-08-02 | GAY BENJAMIN A |
| 246 | Electrical switch having deformable contact members | US10359261 | 1961-04-17 | US3178540A | 1965-04-13 | GAY BENJAMIN A; MOYANT DONALD A |
| 247 | Explosion actuated electric switch | US6524960 | 1960-09-26 | US3117194A | 1964-01-07 | STRESAU JR RICHARD H F |
| 248 | Electrical fuses for missiles, particularly rocket missiles | US58714156 | 1956-05-24 | US2961963A | 1960-11-29 | FERDINAND MENKE JOSEPH |
| 249 | Pressure actuated electrical switch | US80945759 | 1959-04-28 | US2938976A | 1960-05-31 | WILSON ROBERT E |
| 250 | Explosive switch | US38503953 | 1953-10-08 | US2931874A | 1960-04-05 | LEAMAN AUDLEY B |
| 251 | Explosive actuated switch | US69746357 | 1957-11-19 | US2929892A | 1960-03-22 | EVERT BLOMGREN AXEL |
| 252 | Electrical switch construction | US75214558 | 1958-07-30 | US2883492A | 1959-04-21 | LANDERS HARRY M |
| 253 | Heat-actuated motor | US61499756 | 1956-10-09 | US2866342A | 1958-12-30 | GERALD MOORHEAD JOHN |
| 254 | Quick-action switch device | US50689855 | 1955-05-09 | US2861153A | 1958-11-18 | ADIL ERK; LUDWIG SCHMITZ |
| 255 | Circuit interrupting device | US62129256 | 1956-11-09 | US2860210A | 1958-11-11 | STOELTING HERMAN O; CUNNINGHAM FRANCIS V |
| 256 | Safety alarm | US34792453 | 1953-04-10 | US2709210A | 1955-05-24 | NEWHALL JR ALMER M |
| 257 | Circuit breaker operating means | US61350545 | 1945-08-30 | US2436194A | 1948-02-17 | BUSH RALPH R |
| 258 | Gas blast circuit interrupter | US31989640 | 1940-02-20 | US2343422A | 1944-03-07 | RAWLINS HERBERT L |
| 259 | Circuit breaker | US37070929 | 1929-06-13 | US1990298A | 1935-02-05 | MEDLIN JOHN P |
| 260 | Circuit-closer. | US188715 | 1915-01-12 | US1148931A | 1915-08-03 | ROSENTHAL ISRAEL E |
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