Patent DE574097C successfully refreshed from Google Patents.
US3735582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calendar watch day-date driving and correcting means
Assignee: Tissot SA
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Filing: 1972-03-31
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Granted: 1973-05-29
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Expires: 1992-03-31
Abstract
Abstract Independent date and day setting of a calendar watch is effected by setting the watch hands to a predetermined time followed by to-and-fro rotational movements of a crown in its time setting position to set the date and by setting the watch to a different predetermined time followed by to-and-fro move-ment of the crown also in its time setting position to set the day.
Inventors
- 👤 J Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:01
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/24; G04B19/243; G04B19/247; G04B19/25
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
A calendar watch comprising date and day-of-the-week indicating organs and coaxially located on the movement, further a correction mechanism itself comprising a calendar wheel-andpinion and means for activating said wheel-and-pinion from the outside of the watch, this wheel-and-pinion being provided with two driving elements, one of which functions in concert with the date-indicating organ and the other of which functions in concert with the day-of-the-week indicating organ, thus characterized in that said driving elements are fastened to said calendar wheeland-pinion and are apart, one from another, on said wheel-andpinion, by an angle NOT 180*, and that said indicating organs are kept at rest by pivoting jumpers biased by springs into such positions that their toothings are asymmetric with respect to the line from the common center of said indicating organs to the center of said rotating wheel-and-pinion.
Claim 2
Dependent Claim
137 words
A calendar watch comprising date and day-of-the-week indicating organs and coaxially located on the movement, further a correction mechanism itself comprising a calendar wheel-andpinion and means for activating said wheel-and-pinion from the outside of the watch, this wheel-and-pinion being provided with two driving elements, one of which functions in concert with the date-indicating organ and the other of which functions in concert with the day-of-the-week indicating organ, thus characterized in that said driving elements are fastened to said calendar wheeland-pinion and are apart, one from another, on said wheel-andpinion, by an angle NOT 180*, and that said indicating organs are kept at rest by pivoting jumpers biased by springs into such positions that their toothings are asymmetric with respect to the line from the common center of said indicating organs to the center of said rotating wheel-and-pinion.
Claim 3
Dependent Claim
91 words
A calendar watch according to claim 1, thus characterized in that the movement''s hour wheel is made up of a flat disk fastened to a plastic part comprising a sleeve acting as the pipe of the hour wheel, - a peripheral part in the shape of a toothed disk driving said calendar wheel-and-pinion - , and is further made up of at least one element elastically connected to said sleeve and so made as to press against an element of the movement frame to eliminate axial play in the hour wheel-and-pinion.
Claim 4
Dependent Claim
42 words
A calendar watch according to claim 1, thus characterized in that the two driving elements are located at different levels and mesh, the one with the inside toothing of a date ring, the other with the outer toothing of a day-of-the-week disk.
Claim 5
Dependent Claim
39 words
A calendar watch according to claim 3, thus characterized in that the toothing of the day-of-the-week disk is of fourteen teeth and that this disk presents on its periphery the sequence of the days of the week, repeated twice.
Claim 6
Dependent Claim
49 words
A calendar watch according to claim 3, thus characterized in that said calendar wheel-and-pinion is of one piece of a plastic material and comprises a disk with said toothed sectors and a hub, one of the driving elements extending lateRally from said hub above a cut-out in the disk.
Claim 7
Dependent Claim
47 words
A calendar watch according to claim 1, thus characterized in that said calendar wheel-and-pinion is coupled by means of gearing to the movement''s hour wheel-and-pinion, the gearing imparting a rapid rotation of one-half revolution to said calendar wheel-and-pinion during each full revolution of the said hour wheel-and-pinion.
Claim 8
Dependent Claim
29 words
A calendar watch according to claim 6, thus characterized in that the angular separation between the driving elements fastened to said calendar wheel-and-pinion is of the order of 135*.
Claim 9
Dependent Claim
97 words
A calendar watch according to claim 7, thus characterized in that said calendar wheel-and-pinion is provided on its periphery with diametrically opposite toothed sectors which are separated by intervals longer than one pitch of the toothing of said sectors, and that the hour wheel-and-pinion comprises a disk of which part of the periphery is in the form of an arc-of-circle capable of immobilizing the calendar wheel-and-pinion by functioning in concert with the extreme, opposite teeth of the two sectors and further comprises a toothed sector capable of functioning in concert with the sectors of the calendar wheel-and-pinion.
Claim 10
Dependent Claim
35 words
A calendar watch according to claim 8, thus characterized in that the toothed sector of disk fastened to the hour wheel-and-pinion comprises three teeth whereas each toothed sector of the calendar wheel-and-pinion comprises four teeth.
References Cited (Backward Citations)
US3436905A
Cited
US3695029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |