Astronomical wrist-watch
Patent 4711583 Issued on December 8, 1987. Estimated Expiration Date: 
November 5, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 5, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 246061 463101 1153492 2128970 Celestial clock Watch with indicator of lunar phases Patent #: 4548512 InventorsApplicationNo. 06/932546 filed on 11/05/1986US Classes:368/16, With sun, earth, and moon display968/207, Clocks or watches with indicators for tides, for the phases of the moon, or the like (planetaria G09B 27/00 -27/06; arrangements for table reference, e.g., menstrual tables, etc., G06C 3/00) [G04B 19/26]968/92Differentials [G04B 13/00G2]ExaminersPrimary: Miska, Vit W.Attorney, Agent or FirmInternational ClassesG04B 13/00 (20060101)G04B 19/00 (20060101) G04B 19/26 (20060101) AbstractA watch designed to display, by means of indicators (7 to 10) several astronomical magnitudes. The indicators are driven by means of a planetary gear train (19) which is rotatingly supported by means of a ball bearing (20) within a support ring (11) of the watch. The drive force as well as the time reference are provided by a work (C) simultaneously driving the planet-wheel carrier (21, 22) of the planetary gear train and the gear clusters mounted thereon. Each of said clusters has a reduction ratio depending on the indicator (8 to 10) it is intended to drive. | |
