Patent · US Active

Astronomical watch

US8995233B2 · kind B2 · utility

4Cited by

8References

18Claims

0Family size

Assignee

Montres Breguet S.A. · CH

Inventors

Eric Goeller · Neuchâtel, CH
Alain Zaugg · Le Brassus, CH

Key dates

Filing date	Nov 1, 2013
Grant date	Mar 31, 2015
Priority date	—
Expiry date	Nov 1, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG04B19/268
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Mechanism for displaying the day and phase of at least a first celestial body, comprising a gear train for a constant frequency gear drive on an output of a timepiece movement. This mechanism includes a means for the three-dimensional display of the day and phase of said first celestial body represented by a first mobile component, which is driven by the gear train, which includes a phase train and a day train, each in mesh on an output of this same movement.This phase train and/or this day train include at least one uncoupling means between the input and its output thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.