FR1572325A - - Google Patents

Info

Publication number
FR1572325A
FR1572325A FR147069A FR1572325DA FR1572325A FR 1572325 A FR1572325 A FR 1572325A FR 147069 A FR147069 A FR 147069A FR 1572325D A FR1572325D A FR 1572325DA FR 1572325 A FR1572325 A FR 1572325A
Authority
FR
France
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
FR147069A
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1572325A publication Critical patent/FR1572325A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/002—Monitoring or fail-safe circuits
    • H01H47/004—Monitoring or fail-safe circuits using plural redundant serial connected relay operated contacts in controlled circuit
FR147069A 1968-04-04 1968-04-04 Expired FR1572325A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR147069 1968-04-04

Publications (1)

Publication Number Publication Date
FR1572325A true FR1572325A (en) 1969-06-27

Family

ID=8648612

Family Applications (1)

Application Number Title Priority Date Filing Date
FR147069A Expired FR1572325A (en) 1968-04-04 1968-04-04

Country Status (4)

Country Link
US (1) US3579048A (en)
DE (1) DE1917459C3 (en)
FR (1) FR1572325A (en)
GB (1) GB1216033A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303383A (en) * 1979-11-09 1981-12-01 Honeywell Inc. Condition control system with safety feedback means
DE3619723A1 (en) * 1986-06-12 1987-12-17 Kloeckner Moeller Elektrizit Additional controller, having contacts, for safety circuits
PT1719729E (en) * 2004-02-26 2011-06-29 Mitsubishi Electric Corp Safety device of elevator
WO2016150469A1 (en) * 2015-03-20 2016-09-29 Otis Elevator Company Elevator testing arrangement
EP3196913B1 (en) * 2016-01-20 2019-04-10 Schneider Electric Industries SAS Relay circuit and method for performing self-test of relay circuit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786989A (en) * 1954-09-28 1957-03-26 Rca Corp Automatic control alarm system

Also Published As

Publication number Publication date
DE1917459B2 (en) 1979-11-15
US3579048A (en) 1971-05-18
GB1216033A (en) 1970-12-16
DE1917459C3 (en) 1980-07-24
DE1917459A1 (en) 1969-11-13

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Legal Events

Date Code Title Description
ST Notification of lapse