FR62303E - Improvements to electrical relays - Google Patents

Improvements to electrical relays

Info

Publication number
FR62303E
FR62303E FR62303DA FR62303E FR 62303 E FR62303 E FR 62303E FR 62303D A FR62303D A FR 62303DA FR 62303 E FR62303 E FR 62303E
Authority
FR
France
Prior art keywords
electrical relays
relays
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)
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.)
Hitachi Rail STS USA Inc
Original Assignee
Union Switch and Signal Inc
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 Union Switch and Signal Inc filed Critical Union Switch and Signal Inc
Application granted granted Critical
Publication of FR62303E publication Critical patent/FR62303E/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
    • H01H51/30—Electromagnetic relays specially adapted for actuation by ac
    • H01H51/32—Frequency relays; Mechanically-tuned relays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
    • B61L23/12—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only partly operated by train

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Food-Manufacturing Devices (AREA)
  • Breakers (AREA)
FR62303D 1940-09-07 1947-08-04 Improvements to electrical relays Expired FR62303E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US355793A US2300790A (en) 1940-09-07 1940-09-07 Electrical relay

Publications (1)

Publication Number Publication Date
FR62303E true FR62303E (en) 1955-06-13

Family

ID=23398871

Family Applications (2)

Application Number Title Priority Date Filing Date
FR950558D Expired FR950558A (en) 1940-09-07 1947-07-31 Improvements to electrical relays
FR62303D Expired FR62303E (en) 1940-09-07 1947-08-04 Improvements to electrical relays

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR950558D Expired FR950558A (en) 1940-09-07 1947-07-31 Improvements to electrical relays

Country Status (4)

Country Link
US (1) US2300790A (en)
BE (2) BE477696A (en)
FR (2) FR950558A (en)
GB (1) GB546980A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439248A (en) * 1943-10-04 1948-04-06 Gregory Motors Inc Electromotor
US2485624A (en) * 1944-08-29 1949-10-25 Int Standard Electric Corp Vibrator relay
DE851075C (en) * 1949-12-18 1952-10-02 Siemens Ag Arrangement for relays in railway safety

Also Published As

Publication number Publication date
BE477696A (en)
US2300790A (en) 1942-11-03
BE477782A (en)
GB546980A (en) 1942-08-07
FR950558A (en) 1949-09-30

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