CH344782A - Frequenzrelais - Google Patents

Frequenzrelais

Info

Publication number
CH344782A
CH344782A CH344782DA CH344782A CH 344782 A CH344782 A CH 344782A CH 344782D A CH344782D A CH 344782DA CH 344782 A CH344782 A CH 344782A
Authority
CH
Switzerland
Prior art keywords
frequency relay
relay
frequency
Prior art date
Application number
Other languages
English (en)
Inventor
Bopp Hans
Original Assignee
Hartmann & Braun Ag
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 Hartmann & Braun Ag filed Critical Hartmann & Braun Ag
Publication of CH344782A publication Critical patent/CH344782A/de

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
CH344782D 1954-12-20 1955-12-20 Frequenzrelais CH344782A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH22477A DE1011525B (de) 1954-12-20 1954-12-20 Frequenzrelais

Publications (1)

Publication Number Publication Date
CH344782A true CH344782A (de) 1960-02-29

Family

ID=7149310

Family Applications (1)

Application Number Title Priority Date Filing Date
CH344782D CH344782A (de) 1954-12-20 1955-12-20 Frequenzrelais

Country Status (5)

Country Link
US (1) US2957062A (de)
CH (1) CH344782A (de)
DE (1) DE1011525B (de)
FR (1) FR1138147A (de)
NL (1) NL93661C (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL209677A (de) * 1956-06-11
US3020455A (en) * 1959-05-04 1962-02-06 Stevens Arnold Inc Vibratory capacitors
US3150337A (en) * 1961-02-27 1964-09-22 Armec Corp Electro-mechanical resonant device
US3937117A (en) * 1969-07-08 1976-02-10 Philamon Incorporated Composite tuning fork and method of making same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE459964C (de) * 1928-05-15 Siemens & Halske Akt Ges Zungenfrequenzmesser
US1708945A (en) * 1922-01-06 1929-04-16 Western Electric Co Selective transmission system
US1585508A (en) * 1924-04-18 1926-05-18 Oliver Charles Resonance arrangement particularly applicable to electric relays
US1654123A (en) * 1924-09-30 1927-12-27 Western Electric Co Frequency selective transmission system
US2163195A (en) * 1936-10-08 1939-06-20 American Telephone & Telegraph Mechanical relay
DE659479C (de) * 1937-01-09 1938-05-04 Nollesche Werke Komm Ges Anklopftrommel fuer Anklopfmaschinen
US2406800A (en) * 1941-03-13 1946-09-03 Int Standard Electric Corp Direction finder with filter
DE892344C (de) * 1941-09-04 1953-10-05 Siemens Ag Stimmgabelfilter
US2486394A (en) * 1946-02-25 1949-11-01 Standard Telephones Cables Ltd Selective relay
NL76872C (de) * 1948-11-11
US2622168A (en) * 1949-09-08 1952-12-16 Westinghouse Air Brake Co Frequency responsive relay
US2681588A (en) * 1952-04-08 1954-06-22 Biddle Co James G Vibrating reed device

Also Published As

Publication number Publication date
US2957062A (en) 1960-10-18
DE1011525B (de) 1957-07-04
NL93661C (de)
FR1138147A (fr) 1957-06-11

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