US3760583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic wrist watch with alarm
Assignee: Suwa Seikosha KK
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Filing: 1972-02-17
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Granted: 1973-09-25
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Expires: 1992-02-17
Abstract
Abstract An electronic wrist watch with an alarm has a buzzer provided on the outside of a watch case, a perforated cover which covers said buzzer, an excitation circuit which drives said buzzer, apparatus for operating the excitation circuit at some predetermined time, and a small-size dry cell battery for supplying the oscillating power of said buzzer. The cover is coextensive with the watch case.
Inventors
- 👤 Y Tsuruishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:14
CPC Classifications
G; G04; G04G; G04G13/00; G04G13/02; G04G13/021; G04C; G04C21/00; G04C21/16; G04C21/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
187 words
An alarm electronic wristwatch comprising a watch case, means in said case by which a recess is provided peripherally in said watch case, said means being provided with perforations, a buzzer contained in said recess and including an oscillating portion, a buzzer cover contiguous with said case and covering said recess and said buzzer, said buzzer cover being provided with a plurality of perforations in order to transmit sound externally of said watch case, at least one screw fixing said cover onto said watch case, an electronic circuit for driving said buzzer in said watch case, means for electrically connecting said circuit to said buzzer, means for operating said circuit for driving said buzzer at a selectable time, said circuit including a transistor including a base electrode, switch means inserted in series with said base electrode of the transistor for driving said buzzer, an oscillator constituting a time standard for said watch, a driving circuit for said oscillator, a base plate supporting both said driving circuit for said buzzer and said exciting circuit for said oscillator, and a single battery for supplying both said circuits with energy.
Claim 2
Dependent Claim
187 words
An alarm electronic wristwatch comprising a watch case, means in said case by which a recess is provided peripherally in said watch case, said means being provided with perforations, a buzzer contained in said recess and including an oscillating portion, a buzzer cover contiguous with said case and covering said recess and said buzzer, said buzzer cover being provided with a plurality of perforations in order to transmit sound externally of said watch case, at least one screw fixing said cover onto said watch case, an electronic circuit for driving said buzzer in said watch case, means for electrically connecting said circuit to said buzzer, means for operating said circuit for driving said buzzer at a selectable time, said circuit including a transistor including a base electrode, switch means inserted in series with said base electrode of the transistor for driving said buzzer, an oscillator constituting a time standard for said watch, a driving circuit for said oscillator, a base plate supporting both said driving circuit for said buzzer and said exciting circuit for said oscillator, and a single battery for supplying both said circuits with energy.
Claim 3
Dependent Claim
15 words
A wristwatch as claimed in claim 1 wherein said cover and case have like curvatures.
References Cited (Backward Citations)
US3577876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |