FR51434E - Improvements to electromagnetic contactors - Google Patents

Improvements to electromagnetic contactors

Info

Publication number
FR51434E
FR51434E FR51434DA FR51434E FR 51434 E FR51434 E FR 51434E FR 51434D A FR51434D A FR 51434DA FR 51434 E FR51434 E FR 51434E
Authority
FR
France
Prior art keywords
electromagnetic contactors
contactors
electromagnetic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR51434E publication Critical patent/FR51434E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
FR51434D 1937-10-01 1941-03-05 Improvements to electromagnetic contactors Expired FR51434E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US166787A US2170694A (en) 1937-10-01 1937-10-01 Electromagnetic switch and system therefor

Publications (1)

Publication Number Publication Date
FR51434E true FR51434E (en) 1942-06-24

Family

ID=22604702

Family Applications (2)

Application Number Title Priority Date Filing Date
FR844090D Expired FR844090A (en) 1937-10-01 1938-09-29 Improvements to electromagnetic contactors
FR51434D Expired FR51434E (en) 1937-10-01 1941-03-05 Improvements to electromagnetic contactors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR844090D Expired FR844090A (en) 1937-10-01 1938-09-29 Improvements to electromagnetic contactors

Country Status (3)

Country Link
US (1) US2170694A (en)
BE (1) BE442994A (en)
FR (2) FR844090A (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421998A (en) * 1941-05-16 1947-06-10 Signal Engincering & Mfg Compa Electrical circuit controlling device
US2452034A (en) * 1944-10-06 1948-10-26 Walter H Campbell Electrical drop signal device
US2505904A (en) * 1945-05-28 1950-05-02 Allen Bradley Co Holding relay with permanent magnet
US2504996A (en) * 1945-08-22 1950-04-25 Macdonald Waldron Shapleigh Electromotive device
US2541018A (en) * 1946-11-01 1951-02-13 Signal Tuned Radio Corp Stop-on-signal radio apparatus
US2565911A (en) * 1948-01-28 1951-08-28 Frank T Cooper Electronic device for sound reproduction of musical instruments
US2538819A (en) * 1948-09-07 1951-01-23 Kellogg Switchboard & Supply Plural armature electromagnetic counting device
US2552636A (en) * 1949-02-14 1951-05-15 Herbert Clemmens Time-delay relay arrangement
US2715719A (en) * 1951-06-14 1955-08-16 Itt Remote supervisory and control system
US2869050A (en) * 1952-01-04 1959-01-13 Magnetic circuits
US2871676A (en) * 1954-07-06 1959-02-03 Gen Motors Corp Refrigerating apparatus with magnetic latch
US3022400A (en) * 1957-06-27 1962-02-20 Ahlefeldt Rolf S Von Two-way solenoid
US3142036A (en) * 1958-06-09 1964-07-21 Ibm Multi-aperture magnetic core storage device
US3239721A (en) * 1958-12-18 1966-03-08 Monroe Int Electromagnetically controlled readout device
US3109126A (en) * 1959-12-09 1963-10-29 Gen Signal Corp Magnetic stick type relay
US3153227A (en) * 1960-06-30 1964-10-13 Monroe Int Display device having magnetically controlled plural indicia plates
NL275584A (en) * 1961-03-06 1900-01-01
US3217122A (en) * 1961-11-01 1965-11-09 Automatic Elect Lab Bi-stable reed relay
US3506883A (en) * 1965-12-22 1970-04-14 Heiwa Electric Electrical locking device
US4409552A (en) * 1981-04-16 1983-10-11 Honeywell Inc. Cyclic means with magnetic latch for checking switch integrity

Also Published As

Publication number Publication date
US2170694A (en) 1939-08-22
FR844090A (en) 1939-07-18
BE442994A (en)

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