US3817024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time-setter for an electronic timepiece
Assignee: Citizen Watch Co Ltd
•
Filing: 1972-12-12
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Granted: 1974-06-18
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Expires: 1992-12-12
Abstract
Abstract An electronic watch comprising a motor for converting electrical energy into mechanical rotational movement, an actuating means operable from the outside of the casing of the watch, and an arbor means for the hand of the watch. A gear train couples the motor to the arbor means and a cam means is operatively connected to the actuation means and the watch hands. The cam means are controlled by the operation of the actuation means for setting at least one of the hands of the watch to a reference position whereby the watch may be set by merely operating the actuation means.
Inventors
- 👤 K Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:44
CPC Classifications
G; G04; G04B; G04B27/00; G04B27/004; G04C; G04C13/00; G04C13/08; G04C13/10; G04C13/11; G04C3/00; G04C9/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
267 words
In an electronic watch comprising: a. conversion means for converting electrical energy into mechanical rotational movement; b. actuation means operable from the outside of the casing of said watch; c. a first arbor for the seconds hand of said watch; d. a second arbor for the minute hand of said watch; e. gear train means coupling said conversion means to said first arbor; f. clutch means for allowing relative slippage between said two arbors; g. first cam means, of a heart configuration, fixedly attached to said first arbor; h. second cam means, of a notched disc configuration, fixedly attached to said second arbor; i. motion-transmitting lever means for receiving motion from said actuation means; j. a first cam control lever means for receiving motion from said motion-transmitting lever means and for cooperating with said first cam means so as to correct said seconds hand to its zero-position and to correct said minUte hand to its correct minute indicating position; k. second cam control lever means for receiving motion from said motion-transmitting lever means and for engaging the notch of said second cam means for correcting said minute hand to its zero-position; l. lever means responsive to said motion from said motiontransmitting means, thereby stopping said conversion means in its operation and for disconnecting said train means; and, m. a resilient means, provided in the path of motion transmission extending from said actuating means to said second cam control lever means, for correcting only said first cam in its position when said second cam control lever means engages said second cam at any position other than said notch.
Claim 2
Dependent Claim
267 words
In an electronic watch comprising: a. conversion means for converting electrical energy into mechanical rotational movement; b. actuation means operable from the outside of the casing of said watch; c. a first arbor for the seconds hand of said watch; d. a second arbor for the minute hand of said watch; e. gear train means coupling said conversion means to said first arbor; f. clutch means for allowing relative slippage between said two arbors; g. first cam means, of a heart configuration, fixedly attached to said first arbor; h. second cam means, of a notched disc configuration, fixedly attached to said second arbor; i. motion-transmitting lever means for receiving motion from said actuation means; j. a first cam control lever means for receiving motion from said motion-transmitting lever means and for cooperating with said first cam means so as to correct said seconds hand to its zero-position and to correct said minUte hand to its correct minute indicating position; k. second cam control lever means for receiving motion from said motion-transmitting lever means and for engaging the notch of said second cam means for correcting said minute hand to its zero-position; l. lever means responsive to said motion from said motiontransmitting means, thereby stopping said conversion means in its operation and for disconnecting said train means; and, m. a resilient means, provided in the path of motion transmission extending from said actuating means to said second cam control lever means, for correcting only said first cam in its position when said second cam control lever means engages said second cam at any position other than said notch.
Claim 3
Dependent Claim
35 words
An electronic watch such as claimed in claim 1, wherein said motion-transmitting lever means comprises a first and second resilient arm held in pressure engagement with said first and said second cam control lever, respectively.
Claim 4
Dependent Claim
70 words
An electronic watch such as set forth in claim 2 wherein said motion converting means comprises a drive balance wheel and an index wheel held in cooperation therewith, wherein said lever means for stopping said motion conversion means and for decoupling said motion conversion means from the gear train, said first cam control lever means and said second cam control lever means are sequentially operated by actuating said actuation means.
Claim 5
Dependent Claim
34 words
An electronic watch such as set forth in claim 3, further comprising a series of serrations formed on the periphery of said second cam for correcting said second arbor to the correct minute position.
References Cited (Backward Citations)
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US3059412A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |