FR550714A - Automatic safety valve, for electrical pipes - Google Patents

Automatic safety valve, for electrical pipes

Info

Publication number
FR550714A
FR550714A FR550714DA FR550714A FR 550714 A FR550714 A FR 550714A FR 550714D A FR550714D A FR 550714DA FR 550714 A FR550714 A FR 550714A
Authority
FR
France
Prior art keywords
safety valve
automatic safety
electrical pipes
pipes
electrical
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)
Inventor
Alfredo Salt
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.)
SIABE SOC IT APPARECCHI BREVET
Original Assignee
SIABE SOC IT APPARECCHI BREVET
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 SIABE SOC IT APPARECCHI BREVET filed Critical SIABE SOC IT APPARECCHI BREVET
Application granted granted Critical
Publication of FR550714A publication Critical patent/FR550714A/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
    • H01H73/22—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 electrothermal release and no other automatic release
    • H01H73/30—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 electrothermal release and no other automatic release reset by push-button, pull-knob or slide
FR550714D 1922-01-19 1922-04-27 Automatic safety valve, for electrical pipes Expired FR550714A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE550714X 1922-01-19

Publications (1)

Publication Number Publication Date
FR550714A true FR550714A (en) 1923-03-16

Family

ID=6562777

Family Applications (1)

Application Number Title Priority Date Filing Date
FR550714D Expired FR550714A (en) 1922-01-19 1922-04-27 Automatic safety valve, for electrical pipes

Country Status (1)

Country Link
FR (1) FR550714A (en)

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