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Patent Searching and Data


Title:
OSCILLATOR FOR A TIMEPIECE BALANCE SPRING ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2015/189278
Kind Code:
A3
Abstract:
The present invention relates to a hairspring (3) to be provided on a balance wheel (2) of a balance spring assembly (1) of a mechanical timepiece, characterized in that said hairspring is manufactured using a titanium alloy containing: a titanium base; 10 at.% to 40 at.% of at least one element among Nb, Ta, or V; 0 at.% to 3 at.% oxygen; 0 at.% to 6 at.% zirconium; and 0 at.% to 5 at.% hafnium. The hairspring of the invention is less temperature-sensitive and has lower density than a conventional hairspring.

Inventors:
DIOLOGENT FRÉDÉRIC (CH)
GUERLESQUIN GAËL (CH)
MOYSE ROMAIN (FR)
Application Number:
PCT/EP2015/062954
Publication Date:
April 07, 2016
Filing Date:
June 10, 2015
Export Citation:
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Assignee:
CARTIER INTERNAT AG (CH)
International Classes:
C22C14/00; G04B1/14; G04B17/06
Domestic Patent References:
WO2005005677A12005-01-20
WO2005045532A22005-05-19
Foreign References:
EP2631721A12013-08-28
EP1225237A12002-07-24
EP1114876A12001-07-11
FR1275357A1961-11-03
Attorney, Agent or Firm:
P&TS SA (Neuchâtel, CH)
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