专利检索_ .直流反接而动作的专利检索_ .直流反接而动作的专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
21	Circuit interrupter	US23411127	1927-11-18	US1785887A	1930-12-23	CHRYST WILLIAM A

22	Electric relay	US19786627	1927-06-10	US1728037A	1929-09-10	BUCKLEN HERBERT E; PUTT HARLIE O

23	Reverse-current relay	US40575120	1920-08-24	US1611741A	1926-12-21

24	Relay-tripping system	US67288423	1923-11-05	US1572951A	1926-02-16	PIERCE RAYMOND T

25	Electeomagnetic device	US1445994D		US1445994A	1923-02-20

26	Current trip unit for circuit breaker	US12378630	2009-02-18	US08183964B2	2012-05-22	Jacek Mrowiec; Dominik Banaszcyzyk; Pawel Lazarczyk
A trip unit having a current carrying element, an anchor having an up and a down position, and an oscillator having a first position and a second position. The oscillator in the first position permits the anchor to move into the down position, and the oscillator in the second position blocks the anchor from moving into the down position. Additionally, a magnetic yoke surrounds the current carrying element and the anchor. A magnetic flux flowing through the magnetic yoke moves the anchor into the down position. A magnetic yoke surrounding the current carrying element and the oscillator provides a magnetic flux flowing through the magnetic yoke moves the oscillator into the first position, or into the second position.
27	High speed circuit breaker with shuttle armature	US83525159	1959-08-21	US3024330A	1962-03-06	HEINZ FEHLING

28	Arrangements for modulating electric carrier wave oscillations	US49319955	1955-03-09	US2937344A	1960-05-17	WILLIAM HARLING DENIS

29	Circuit interrupter	US50759555	1955-05-11	US2809251A	1957-10-08	FINDLEY JR JOSEPH D

30	Reverse current responsive device	US11096649	1949-08-18	US2575127A	1951-11-13	REIFSCHNEIDER PAUL J

31	Reverse current relay	US73393747	1947-03-11	US2565755A	1951-08-28	LOWELL BROWN ROBERT

32	Tripping device	US55826844	1944-10-11	US2474029A	1949-06-21	BOHN DONALD I

33	Circuit breaker	US55614244	1944-09-28	US2467720A	1949-04-19	AUSTIN BASCUM O

34	Circuit breaker holding magnet and armature	US45261342	1942-07-28	US2412247A	1946-12-10	BOHN DONALD I

35	Circuit breaker	US45835842	1942-09-15	US2404950A	1946-07-30	DICKINSON ROBERT C; STUELLEIN WILLIAM H; FLORSCHUTZ FRITZ E

36	Battery charging control device	US42847442	1942-01-28	US2332951A	1943-10-26	THOMPSON LOUIS W

37	High-speed direct-current circuit breaker	US29407039	1939-09-09	US2289182A	1942-07-07	DICKINSON ROBERT C

38	Transformer	US33252040	1940-04-30	US2283670A	1942-05-19	EVANS SIDLEY O

39	Flash-back indicator for mercury rectifier tubes	US70601834	1934-01-10	US2089994A	1937-08-17	CONKLIN JAMES W; HANSELL CLARENCE W

40	Electroresponsive device	US3863125	1925-06-22	US1756923A	1930-04-29	MCNAIRY JACOB W

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