EP 2104006 B1 20100714 - Single-body double spiral and method for manufacturing same
Title (en)
Single-body double spiral and method for manufacturing same
Title (de)
Monoblock-Doppelspirale und ihr Herstellungsverfahren
Title (fr)
Double spiral monobloc et son procédé de fabrication
Publication
Application
Priority
EP 08153094 A 20080320
Abstract (en)
[origin: EP2104006A1] The spiral (21) has a collet (27) formed by patterns. One of the patterns is projected from a hairspring (23) and formed in a silicon based layer. The hairspring is coaxially mounted on the collet. Another pattern is extended into another silicon based layer so as to be coaxial with another hairspring (25) for forming the monoblock double spiral in silicon based material. The hairspring (23) made of silicon based material is oxidized. An internal spire of one of the hairsprings is provided with a Grossmann curve. An independent claim is also included for a method for fabricating a double spiral.
IPC 8 full level
G04B 17/06 (2006.01); G04D 3/00 (2006.01)
CPC (source: EP KR US)
G04B 17/066 (2013.01 - EP KR US); G04B 17/34 (2013.01 - KR); G04D 3/0041 (2013.01 - EP KR US); Y10T 29/49609 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2104006 A1 20090923; EP 2104006 B1 20100714; AT E474250 T1 20100715; CN 101539754 A 20090923; CN 101539754 B 20120808; DE 602008001778 D1 20100826; HK 1136358 A1 20100625; JP 2009229463 A 20091008; JP 5280903 B2 20130904; KR 20090101118 A 20090924; SG 155864 A1 20091029; TW 201007394 A 20100216; TW I463280 B 20141201; US 2009236782 A1 20090924; US 9459589 B2 20161004
DOCDB simple family (application)
EP 08153094 A 20080320; AT 08153094 T 20080320; CN 200910134680 A 20090319; DE 602008001778 T 20080320; HK 10102763 A 20100316; JP 2009069979 A 20090323; KR 20090023836 A 20090320; SG 2009018870 A 20090318; TW 98109210 A 20090320; US 40813009 A 20090320