Patent · US Active

Timepiece comprising a wheel set with a determinable angular position

US10310452B2 · kind B2 · utility

2Cited by

9References

9Claims

0Family size

Assignee

ETA SA MANUFACTURE HORLOGÈRE SUISSE · CH

Inventors

Pascal Lagorgette · Bienne, CH
Matthieu Tardivon · Renens, CH
Rene Rufener · Bienne, CH

Key dates

Filing date	Dec 23, 2016
Grant date	Jun 4, 2019
Priority date	—
Expiry date	Dec 23, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01R27/26
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A timepiece includes a timepiece movement provided with an analog display and at least one wheel rotating integrally with a rotary indicator of the analog display. The wheel includes an electrically conductive plate pierced with at least one aperture. The timepiece also includes a device for detection of a reference angular position of the aperture. The detection device includes a first electrode, a second electrode, and a common electrode which are planar and arranged in a plane parallel to the wheel. The common electrode is arranged along portions of the first electrode and of the second electrode. The aperture is at least partially above or below: the first electrode in a first position of disequilibrium; the first electrode and the second electrode in a position of equilibrium; and the second electrode in a second position of disequilibrium.

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