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FR639324A - Perfectionnements aux relais à courant alternatif - Google Patents

Perfectionnements aux relais à courant alternatif

Info

Publication number
FR639324A
FR639324A FR639324DA FR639324A FR 639324 A FR639324 A FR 639324A FR 639324D A FR639324D A FR 639324DA FR 639324 A FR639324 A FR 639324A
Authority
FR
France
Prior art keywords
relays
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
English (en)
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.)
SPX Technologies Inc
Original Assignee
General Railway Signal Co
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 General Railway Signal Co filed Critical General Railway Signal Co
Application granted granted Critical
Publication of FR639324A publication Critical patent/FR639324A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H53/00—Relays using the dynamo-electric effect, i.e. relays in which contacts are opened or closed due to relative movement of current-carrying conductor and magnetic field caused by force of interaction between them
    • H01H53/10—Induction relays, i.e. relays in which the interaction is between a magnetic field and current induced thereby in a conductor
FR639324D 1926-08-31 1927-08-11 Perfectionnements aux relais à courant alternatif Expired FR639324A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US132835A US1766665A (en) 1926-08-31 1926-08-31 Alternating-current relay

Publications (1)

Publication Number Publication Date
FR639324A true FR639324A (fr) 1928-06-19

Family

ID=22455820

Family Applications (1)

Application Number Title Priority Date Filing Date
FR639324D Expired FR639324A (fr) 1926-08-31 1927-08-11 Perfectionnements aux relais à courant alternatif

Country Status (4)

Country Link
US (1) US1766665A (fr)
DE (1) DE527482C (fr)
FR (1) FR639324A (fr)
GB (1) GB276961A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2449552A (en) * 1943-01-14 1948-09-21 John E Gorham Spark gap
US2802150A (en) * 1950-08-03 1957-08-06 Joslyn Mfg & Supply Co Street lighting control unit
US2678410A (en) * 1952-03-29 1954-05-11 Gen Railway Signal Co Lightning relief gap for relays
US2740922A (en) * 1954-11-08 1956-04-03 Harrison L Hilton Electric meter socket

Also Published As

Publication number Publication date
DE527482C (de) 1931-06-18
GB276961A (en) 1928-02-16
US1766665A (en) 1930-06-24

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