| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Circuit maker and breaker | US33648640 | 1940-05-22 | US2270513A | 1942-01-20 | STEVE DETTAR |
| 42 | Intermittently operating electrical apparatus | US14528637 | 1937-05-28 | US2256802A | 1941-09-23 | SAMUEL FEINGOLD |
| 43 | Electric vibrator | US14366437 | 1937-05-20 | US2224263A | 1940-12-10 | OTTO HERMANN |
| 44 | Apparatus for intermittently operating electrical load devices | US19783438 | 1938-03-24 | US2221867A | 1940-11-19 | SAMUEL FEINGOLD |
| 45 | Low frequency generator | US20646738 | 1938-05-06 | US2203417A | 1940-06-04 | MICHON ALFRED E |
| 46 | Timing mechanism | US72733734 | 1934-05-24 | US2123382A | 1938-07-12 | JEAN ROCHER ETIENNE |
| 47 | Circuit-controlling mechanism | US69540233 | 1933-10-27 | US2118687A | 1938-05-24 | WALLACE CHARLES F |
| 48 | Electrical vibrator unit | US71332434 | 1934-02-28 | US2063311A | 1936-12-08 | GUEDON EMILE C; BURT ALEXANDER D; FREDERIC SHOUP |
| 49 | Stop light switch | US34478729 | 1929-03-06 | US1949994A | 1934-03-06 | STANISLAS DYKTOR; DYKTOR HERBERT G |
| 50 | Magnetic interrupter | US63505732 | 1932-09-27 | US1943240A | 1934-01-09 | LEAR WILLIAM P; NULSEN MARVIN E |
| 51 | Light-flashing relay | US64979823 | 1923-07-06 | US1532045A | 1925-03-31 | DAVIS ARCHIBALD H |
| 52 | Interrupter circuits | US29876419 | 1919-05-21 | US1519603A | 1924-12-16 | CASSADAY ORMOND F |
| 53 | Electric-circuit controller | US49039821 | 1921-08-06 | US1453089A | 1923-04-24 | BRYANT STANLEY C |
| 54 | Electric-sign-flashing apparatus | US21692518 | 1918-02-13 | US1452178A | 1923-04-17 | BALLEW ELMER L |
| 55 | Circuit-interrupting mechanism | US46288421 | 1921-04-20 | US1429062A | 1922-09-12 | CORNICA MARTIN V |
| 56 | Method for controlling an electromagnetic contactor and electromagnetic contactor implementing such a method | US13962407 | 2013-08-08 | US09711312B2 | 2017-07-18 | Christophe Hamond |
| The present invention relates to a control method for an electromagnetic contactor and an electromagnetic contactor implementing such a method, where the method includes supplying an electromagnet of the contactor with a pulse width modulation supply signal and having a nominal frequency, the method also including varying the period over at least part of the pulses of the modulation so as to reduce the conducted electromagnetic disruptions, the variation of the period being chosen such that the frequency of the supply signal remains comprised in a given frequency band including the nominal frequency. | ||||||
| 57 | METHOD FOR CONTROLLING AN ELECTROMAGNETIC CONTACTOR AND ELECTROMAGNETIC CONTACTOR IMPLEMENTING SUCH A METHOD | US13962407 | 2013-08-08 | US20140043716A1 | 2014-02-13 | Christophe HAMOND |
| The present invention relates to a control method for an electromagnetic contactor and an electromagnetic contactor implementing such a method, where the method includes supplying an electromagnet of the contactor with a pulse width modulation supply signal and having a nominal frequency, the method also including varying the period over at least part of the pulses of the modulation so as to reduce the conducted electromagnetic disruptions, the variation of the period being chosen such that the frequency of the supply signal remains comprised in a given frequency band including the nominal frequency. | ||||||
| 58 | Vibrating reed selector having improved contact configuration | US3662300D | 1970-12-23 | US3662300A | 1972-05-09 | WIESE LARRY LEE |
| A vibrating reed selector is disclosed which includes a housing, a motor assembly and a contact assembly wherein the contact assembly includes two vibrating tines, two contact brackets and a ceramic circuit board. Each tine carries a hook contact, each contact bracket carries a finger contact and the bracket and tines are arranged so that one finger contact is located between one hook contact and its supporting tine, and the other hook contact is located between its supporting tine and the other finger contact.
|
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| 59 | Unitary armature relay having constant actuating time and method | US3436701D | 1967-04-14 | US3436701A | 1969-04-01 | HAYDEN RODNEY |
| 60 | Electromagnetic switch having intermittent operation | US33793564 | 1964-01-15 | US3277412A | 1966-10-04 | LA ACENA ALFONSO ROMERA DE |
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