FR556256A - Electromagnetic devices for controlling electrical circuits - Google Patents

Electromagnetic devices for controlling electrical circuits

Info

Publication number
FR556256A
FR556256A FR556256DA FR556256A FR 556256 A FR556256 A FR 556256A FR 556256D A FR556256D A FR 556256DA FR 556256 A FR556256 A FR 556256A
Authority
FR
France
Prior art keywords
electrical circuits
controlling electrical
electromagnetic devices
electromagnetic
devices
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 FR556256A publication Critical patent/FR556256A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/36—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
    • H01H73/44—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release reset by push-button, pull-knob or slide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Electromagnets (AREA)
FR556256D 1921-09-29 1922-09-19 Electromagnetic devices for controlling electrical circuits Expired FR556256A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US504051A US1572708A (en) 1921-09-29 1921-09-29 Electromagnetically-controlled device

Publications (1)

Publication Number Publication Date
FR556256A true FR556256A (en) 1923-07-16

Family

ID=24004651

Family Applications (1)

Application Number Title Priority Date Filing Date
FR556256D Expired FR556256A (en) 1921-09-29 1922-09-19 Electromagnetic devices for controlling electrical circuits

Country Status (3)

Country Link
US (1) US1572708A (en)
DE (1) DE394322C (en)
FR (1) FR556256A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3248499A (en) * 1962-09-13 1966-04-26 Digital Analog Technical Assoc Electro-mechanical actuator with permanent magnet

Also Published As

Publication number Publication date
DE394322C (en) 1924-04-30
US1572708A (en) 1926-02-09

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