EP 1903408 A3 20110525 - Tourbillon for a timepiece
Title (en)
Tourbillon for a timepiece
Title (de)
Tourbillon für Uhr
Title (fr)
Tourbillon pour pièce d'horlogerie
Publication
Application
Priority
CH 15222006 A 20060925
Abstract (en)
[origin: EP1903408A2] The tourbillon has a cage including upper and lower bridges (1, 2) and an escapement bridge (3) bearing a balance (4), a hairspring and a movable escapement (5). The lower bridge presents a rotational movement with reference to a clock movement frame. The bridge has a circular periphery to cooperate with fixed rollers (9, 10) and a movable roller (11) mounted pivotingly on the clock movement for assuring the suspension and positioning of the tourbillon on the frame. The periphery has a conformed surface for being complementary to a surface of each roller of the clock movement.
IPC 8 full level
G04B 17/28 (2006.01)
CPC (source: EP US)
G04B 17/285 (2013.01 - EP US)
Citation (search report)
- [A] EP 0846987 A1 19980610 - SEIKO INSTR INC [JP]
- [A] EP 1640821 A1 20060329 - ANTOINE PREZIUSO GENEVE SA [CH]
- [A] FR 2341885 A1 19770916 - BOUCHET LASSALE SA [CH]
- [A] EP 0401160 A1 19901205 - MATHYS PIERRE [CH]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 1903408 A2 20080326; EP 1903408 A3 20110525; CH 701725 B1 20110315; CN 101154088 A 20080402; JP 2008083051 A 20080410; RU 2007135324 A 20090327; SG 141362 A1 20080428; US 2008074955 A1 20080327; US 7794137 B2 20100914
DOCDB simple family (application)
EP 07018872 A 20070925; CH 15222006 A 20060925; CN 200710151858 A 20070925; JP 2007247100 A 20070925; RU 2007135324 A 20070924; SG 2007083660 A 20070921; US 86087807 A 20070925