Large date calendar day mechanism for a timepiece

Details Large date calendar day mechanism for a timepiece Large date calendar day mechanism for a timepiece

2009-08-06

2010-12-28

Iuebke, Renee (Department: 2833)

Horology: time measuring systems or devices

With calendar indicator

Movable ring or disk

C368S233000

Reexamination Certificate

active

07859950

ABSTRACT:
The large date mechanism comprises three superposed indicator discs (1, 2, 3). The lower disc (3) bears eleven numerals (8) and the upper (1) and intermediate (2) discs each bear ten numerals (4, 6) and a window (5, 7). Each of the discs is integral to a star wheel (12, 13, 14) with cannon pinions (9, 10, 11). The cannon pinion star wheels are selectively driven by a control movement (15) comprising three toothed sectors (19, 18, 17) integral to a calendar day wheel (16) that advances one step per day. The mechanism can be supplemented by a safety device ensuring blocking of the star wheels when they should be stationary.

REFERENCES:
patent: 2976672 (1961-03-01), Ducommun
patent: 3518825 (1970-07-01), Nissen
patent: 4257113 (1981-03-01), Meister et al.
patent: 5327401 (1994-07-01), Besson et al.
patent: 6081483 (2000-06-01), Capt et al.
patent: 6925032 (2005-08-01), Willemin et al.
patent: 6934221 (2005-08-01), Willemin et al.
patent: 7023762 (2006-04-01), Burkhardt et al.
patent: 7532546 (2009-05-01), Suzuki et al.
patent: 7706214 (2010-04-01), Scheufele
patent: 2002/0080687 (2002-06-01), Rochat et al.
patent: 2002/0159337 (2002-10-01), Weissbach et al.
patent: 2003/0103417 (2003-06-01), Gabathuler et al.
patent: 2005/0152225 (2005-07-01), Dias
patent: 2005/0174891 (2005-08-01), Besse
patent: 2008/0279049 (2008-11-01), Schmiedchen et al.
patent: 2009/0303841 (2009-12-01), Noguchi
patent: 125 522 (1928-04-01), None
patent: 660 941 (1987-06-01), None
patent: 195 39 087 (1997-07-01), None
Partial Translation of CH 125522: Source epo.worldlingo.com; Sep. 16, 2010.

Affiliated with

Also associated with

Rating

Large date calendar day mechanism for a timepiece does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Large date calendar day mechanism for a timepiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Large date calendar day mechanism for a timepiece will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4184453