Patent · US Active

Calendar mechanism including a quick month corrector

US8982673B2 · kind B2 · utility

1Cited by

8References

13Claims

0Family size

Assignee

Montres Breguet S.A. · CH

Inventors

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

Key dates

Filing date	Mar 20, 2012
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Apr 15, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG04B27/005
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The calendar mechanism includes a 31 wheel set (31) for controlling a date indicator, a date drive means for driving the 31 wheel set, a 12 wheel set (12) for controlling a month indicator, and a monthly drive means for driving the 12 wheel set at the end of each month. The monthly drive means is activated by the 31 wheel set during the change from the end of one month to the first day of the next month. The calendar mechanism further includes a manually activated month corrector device arranged to advance the 31 wheel set in one stroke to an angular position corresponding to the indication of the first day of the next month, so that the monthly drive means, activated by the change from one month to the next, increments the 12 wheel set by one step.

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