SE388949B - BATTERY OPERATED CLOCK - Google Patents

BATTERY OPERATED CLOCK

Info

Publication number
SE388949B
SE388949B SE7204324A SE432472A SE388949B SE 388949 B SE388949 B SE 388949B SE 7204324 A SE7204324 A SE 7204324A SE 432472 A SE432472 A SE 432472A SE 388949 B SE388949 B SE 388949B
Authority
SE
Sweden
Prior art keywords
battery operated
operated clock
clock
battery
operated
Prior art date
Application number
SE7204324A
Other languages
Swedish (sv)
Inventor
N C Zatsky
Original Assignee
Timex Corp
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 Timex Corp filed Critical Timex Corp
Publication of SE388949B publication Critical patent/SE388949B/en

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
    • G04C3/04—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 balance
    • G04C3/06—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 balance using electromagnetic coupling between electric power source and balance
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/081—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet
    • G04C11/084—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-magnet acting on the balance
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F5/00—Apparatus for producing preselected time intervals for use as timing standards

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
SE7204324A 1971-04-05 1972-04-04 BATTERY OPERATED CLOCK SE388949B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13123771A 1971-04-05 1971-04-05

Publications (1)

Publication Number Publication Date
SE388949B true SE388949B (en) 1976-10-18

Family

ID=22448547

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7204324A SE388949B (en) 1971-04-05 1972-04-04 BATTERY OPERATED CLOCK

Country Status (13)

Country Link
US (1) US3699762A (en)
JP (1) JPS5219976B1 (en)
AU (1) AU452762B2 (en)
BE (1) BE781676A (en)
CA (1) CA957515A (en)
CH (2) CH548637A (en)
DE (1) DE2216406B2 (en)
FR (1) FR2132465B1 (en)
GB (1) GB1366251A (en)
IT (1) IT960861B (en)
NL (1) NL7204529A (en)
NO (1) NO133468C (en)
SE (1) SE388949B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319944B2 (en) * 1971-09-25 1978-06-23
DE2302884C3 (en) * 1973-01-20 1975-06-19 Bifora-Uhren J. Bidlingmaier Gmbh, 7070 Schwaebisch Gmuend Contact-controlled electric watch
GB1467248A (en) * 1973-07-30 1977-03-16 Horstmann Magnetics Ltd Electric motors
US3978652A (en) * 1975-06-19 1976-09-07 Timex Corporation Formed contact spring for electro-mechanical watches
JPS5345575A (en) * 1976-10-06 1978-04-24 Seiko Epson Corp Electronic wristwatch
DE3508637C1 (en) * 1985-03-11 1986-06-12 Joseph Kieninger Uhrenfabrik GmbH, 7209 Aldingen Large clock with mechanical drive

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2424833A (en) * 1944-10-18 1947-07-29 Rca Corp Frequency comparison and control circuit
US3309590A (en) * 1961-03-31 1967-03-14 Reich Robert Walter Magnetic impelling system for mechanical oscillators
US3167906A (en) * 1962-08-31 1965-02-02 Kokusai Electric Co Ltd Timekeeper corrected by electric time signals
US3212252A (en) * 1963-06-04 1965-10-19 Citizen Watch Co Ltd Vibratory motor and controlled circuit for a small timepiece
US3292064A (en) * 1964-03-16 1966-12-13 Gen Electric Frequency regulated chronometer
US3282042A (en) * 1964-09-10 1966-11-01 Bulova Watch Co Inc Crystal controlled chronometer
US3407344A (en) * 1964-09-26 1968-10-22 Shigeru Kakubari Electronic timekeeper
US3451210A (en) * 1966-07-01 1969-06-24 Benrus Corp System for maintaining oscillations in an electric timing mechanism having an oscillatory element

Also Published As

Publication number Publication date
AU4079472A (en) 1973-10-11
AU452762B2 (en) 1974-08-23
FR2132465A1 (en) 1972-11-17
GB1366251A (en) 1974-09-11
FR2132465B1 (en) 1977-01-14
JPS5219976B1 (en) 1977-05-31
CA957515A (en) 1974-11-12
NO133468B (en) 1976-01-26
BE781676A (en) 1972-10-05
DE2216406A1 (en) 1972-10-19
CH548637A (en) 1974-04-30
CH493572A4 (en) 1973-11-15
IT960861B (en) 1973-11-30
NO133468C (en) 1976-05-05
US3699762A (en) 1972-10-24
DE2216406B2 (en) 1974-06-12
NL7204529A (en) 1972-10-09

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