GB1377372A - Piezoelectric oscillator device for a timepiece - Google Patents

Piezoelectric oscillator device for a timepiece

Info

Publication number
GB1377372A
GB1377372A GB5315071A GB5315071A GB1377372A GB 1377372 A GB1377372 A GB 1377372A GB 5315071 A GB5315071 A GB 5315071A GB 5315071 A GB5315071 A GB 5315071A GB 1377372 A GB1377372 A GB 1377372A
Authority
GB
United Kingdom
Prior art keywords
bar
block
blade
carries
timepiece
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
GB5315071A
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.)
Corroyer R P P
Original Assignee
Corroyer R P P
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
Priority claimed from FR7136861A external-priority patent/FR2155156A6/fr
Application filed by Corroyer R P P filed Critical Corroyer R P P
Publication of GB1377372A publication Critical patent/GB1377372A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G04C3/12—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 piezoelectric means; driven by magneto-strictive means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1377372 Electronic timepieces L C C BRUNET and R P P CORROYER 16 Nov 1971 [27 Sept 1971] 53150/71 Heading G3T [Also in Division H 1] An oscillator which may be used as a timebase in an electronic watch comprises a Piezo-electric bar 5 which carries at its one end a vibratory blade 1 and is fixed at its other end into a resilient vibration insulating block 9. The bar 5 is rectangular as shown and is insulated from the blade 1 by a sheath 6 to prevent short-circuiting. The other end of the bar 5 carries opposed electrodes (14) Fig. 4 (not shown) and 15 which are partially enclosed by the block 9 and are connected to a transistorized maintaining circuit. The block 9 is fastened in a support 12 which may be attached to a watch plate by holes 13. The bar 5 may alternatively be of square or octagonal section Figs. 5-8 (not shown) and provided with four or six electrodes.
GB5315071A 1971-09-27 1971-11-16 Piezoelectric oscillator device for a timepiece Expired GB1377372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7136861A FR2155156A6 (en) 1970-04-27 1971-09-27

Publications (1)

Publication Number Publication Date
GB1377372A true GB1377372A (en) 1974-12-11

Family

ID=9084334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5315071A Expired GB1377372A (en) 1971-09-27 1971-11-16 Piezoelectric oscillator device for a timepiece

Country Status (4)

Country Link
US (1) US3790827A (en)
JP (1) JPS4853768A (en)
CH (2) CH578758B5 (en)
GB (1) GB1377372A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841553C2 (en) * 1978-09-23 1982-08-26 Robert Bosch Gmbh, 7000 Stuttgart Flexural oscillator knock sensor
EP3537593B1 (en) * 2018-03-09 2024-04-24 ETA SA Manufacture Horlogère Suisse Device for rotating a toothed wheel

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1693806A (en) * 1925-02-28 1928-12-04 Rca Corp Electromechanical system
US1866267A (en) * 1927-01-24 1932-07-05 Wired Radio Inc Production of oscillations from piezo electric crystals
US2105011A (en) * 1931-11-13 1938-01-11 Brush Dev Co Piezo-electric apparatus
US2364681A (en) * 1941-08-25 1944-12-12 Russell B Wright Pendulum support
US2578620A (en) * 1948-04-30 1951-12-11 Us Rubber Co Method of controlling thread tension
US2561763A (en) * 1948-12-24 1951-07-24 Buffalo Electronics Corp Material flow indicator
US2875353A (en) * 1953-05-29 1959-02-24 Philco Corp Electromechanical reed system
US2848672A (en) * 1955-07-26 1958-08-19 Harris Transducer Corp Self-excited transducer
US3336529A (en) * 1962-12-03 1967-08-15 Lockheed Aircraft Corp Vibrating reed frequency responsive device
US3457463A (en) * 1965-07-07 1969-07-22 Lewis Balamuth Method and apparatus for generating electric currents of small magnitude
US3657874A (en) * 1970-03-12 1972-04-25 Suwa Seikosha Kk Electric timepiece
US3644807A (en) * 1970-04-28 1972-02-22 Robertshaw Controls Co Frequency regulated inverter circuit for a synchronous motor

Also Published As

Publication number Publication date
JPS4853768A (en) 1973-07-28
CH1553471A4 (en) 1975-12-31
US3790827A (en) 1974-02-05
CH578758B5 (en) 1976-08-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee