Patent · US Active

Overmoulded timepiece wheel

US9323221B2 · kind B2 · utility

3Cited by

8References

13Claims

0Family size

Assignee

ETA SA MANUFACTURE HORLOGÈRE SUISSE · CH

Inventors

Ivan Villar · Bienne, CH
Laurent Kaelin · Sonvilier, CH
Xavier Tinguely · Fontaines, CH

Key dates

Filing date	Nov 23, 2012
Grant date	Apr 26, 2016
Priority date	—
Expiry date	Nov 23, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29L2015/006
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A timepiece wheel overmolded onto an arbor. The wheel is plastic injection overmolded onto a washer fitted onto the arbor. This washer has a lower density than the arbor. This washer includes at least one plane surface forming a bearing and sealing surface for cooperating in a sealed manner with an injection mold for the overmolding operation. The timepiece wheel may be an escape wheel whose teeth are formed during overmolding onto the arbor and the washer, and it includes an escape pinion mounted and abutted to the washer or integral with the washer.

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