CA577140A - Electric timepiece - Google Patents

Electric timepiece

Info

Publication number
CA577140A
CA577140A CA577140A CA577140DA CA577140A CA 577140 A CA577140 A CA 577140A CA 577140 A CA577140 A CA 577140A CA 577140D A CA577140D A CA 577140DA CA 577140 A CA577140 A CA 577140A
Authority
CA
Canada
Prior art keywords
electric timepiece
timepiece
electric
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
CA577140A
Other languages
English (en)
French (fr)
Inventor
Hetzel Max
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.)
Bulova Watch Co Inc
Original Assignee
Bulova Watch Co 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.)
Publication date
Application granted granted Critical
Publication of CA577140A publication Critical patent/CA577140A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
    • G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
    • G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
    • G04C3/107—Controlling frequency or amplitude of the oscillating system

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electric Clocks (AREA)
CA577140A 1956-10-11 Electric timepiece Expired CA577140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US615329A US3070951A (en) 1956-10-11 1956-10-11 Frequency-adjustable tuning fork type vibrator for an electrically energized timepiece

Publications (1)

Publication Number Publication Date
CA577140A true CA577140A (en) 1959-06-02

Family

ID=24464902

Family Applications (1)

Application Number Title Priority Date Filing Date
CA577140A Expired CA577140A (en) 1956-10-11 Electric timepiece

Country Status (6)

Country Link
US (1) US3070951A (xx)
CA (1) CA577140A (xx)
DE (1) DE1049314B (xx)
FR (1) FR1218410A (xx)
GB (1) GB828357A (xx)
IT (1) IT567576A (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202848A (en) * 1961-01-19 1965-08-24 Bulova Watch Co Inc Tuning fork frequency adjuster
DE1254089B (de) * 1962-10-31 1967-11-09 United States Time Corp Antriebsanordnung zum Antreiben eines Zahnrades eines zeithaltenden Geraetes
US3322016A (en) * 1963-06-24 1967-05-30 Jeco Kk Added mass type circular tuning fork
US6617576B1 (en) 2001-03-02 2003-09-09 Monitor Instruments Company, Llc Cycloidal mass spectrometer with time of flight characteristics and associated method
US6624410B1 (en) 2002-02-25 2003-09-23 Monitor Instruments Company, Llc Cycloidal mass spectrometer
US6815674B1 (en) 2003-06-03 2004-11-09 Monitor Instruments Company, Llc Mass spectrometer and related ionizer and methods
CN115838112B (zh) * 2023-02-21 2023-05-02 中铁建工集团第二建设有限公司 一种建筑吊装装置及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1560056A (en) * 1923-05-01 1925-11-03 Western Electric Co Source of waves of constant frequency
FR767359A (fr) * 1933-04-10 1934-07-17 Appareil horaire synchrone
US2015410A (en) * 1934-02-05 1935-09-24 Continental Oil Co Vibrating system
US2036917A (en) * 1934-03-06 1936-04-07 Favre-Bulle Maurice Philippe Electric timepiece
US2411444A (en) * 1942-07-13 1946-11-19 Maistre Marcel Balance wheel
US2433160A (en) * 1945-09-06 1947-12-23 Honeywell Regulator Co Tuning fork construction

Also Published As

Publication number Publication date
IT567576A (xx)
US3070951A (en) 1963-01-01
DE1049314B (xx)
FR1218410A (fr) 1960-05-10
GB828357A (en) 1960-02-17

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