EP 3839652 A1 20210623 - HAIRSPRING FOR BALANCE WHEEL-HAIRSPRING OSCILLATOR AND METHOD FOR MANUFACTURING SAME
Title (en)
HAIRSPRING FOR BALANCE WHEEL-HAIRSPRING OSCILLATOR AND METHOD FOR MANUFACTURING SAME
Title (de)
SPIRALFEDER FÜR SPIRALUNRUH-OSZILLATOR EINES UHRWERKS UND IHR HERSTELLUNGSVERFAHREN
Title (fr)
RESSORT SPIRAL POUR OSCILLATEUR BALANCIER-SPIRAL HORLOGER ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
EP 19217684 A 20191218
Abstract (fr)
Ressort spiral (1) pour oscillateur balancier-spiral horloger, le matériau dudit ressort (1) comportant un alliage binaire comprenant :- un pourcentage massique d'or entre 45% et 55% ;- des éventuelles impuretés jusqu'à 0.5% en pourcentage massique ;- la balance en palladium.
IPC 8 full level
C22C 5/02 (2006.01); G04B 17/06 (2006.01); G04B 17/22 (2006.01)
CPC (source: EP)
C22C 5/00 (2013.01); C22C 5/02 (2013.01); C22F 1/14 (2013.01); G04B 17/066 (2013.01); G04B 17/227 (2013.01)
Citation (search report)
- [A] CH 701770 A2 20110315 - NIVAROX SA [CH]
- [A] CH 711161 A2 20161215 - ETA SA MFT HORLOGERE SUISSE [CH]
- [A] JP H0570995 A 19930323 - SEIKO EPSON CORP
Citation (third parties)
Third party : anonymous
MASUMOTO ET AL.: "New Nonmagnetic Elinvar-Type Alloy "Pallagold" in the Pd-Au System", vol. 33, 24 June 1969 (1969-06-24), pages 1410 - 1413
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 19217684 A 20191218