Patent · US Active

Rotary disk moon phase indicator

US12072675B2 · kind B2 · utility

0Cited by

0References

15Claims

0Family size

Assignee

The Swatch Group Research and Development Ltd · CH

Inventors

Cédric Blatter · Commugny, CH
Simon Springer · Bern, CH

Key dates

Filing date	Jul 19, 2021
Grant date	Aug 27, 2024
Priority date	—
Expiry date	Dec 13, 2042

Classification

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

Abstract

A display device for a timepiece representing the lunar libration phenomenon thanks to at least one Moon disk, to at least one aperture and to at least one drive organ. The at least one Moon disk includes a set of Moon phase representations including at least three Moon phases with a first surface, a second surface and/or a delimitation configured to delimit this first surface and this second surface. The at least one aperture being configured to reveal this set of Moon phase representations and this at least one drive organ is configured to move this at least one Moon disk so as to represent the lunar libration phenomenon.

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