EP 2725432 B1 20160720 - Pneumatic winding mechanism, in particular for a timepiece comprising a source of mechanical energy
Title (en)
Pneumatic winding mechanism, in particular for a timepiece comprising a source of mechanical energy
Title (de)
Pneumatischer Aufziehmechanismus, insbesondere für Uhr mit einer mechanischen Energiequelle
Title (fr)
Mécanisme de remontage pneumatique, en particulier pour une pièce d'horlogerie comportant une source d'énergie mécanique
Publication
Application
Priority
EP 12190043 A 20121025
Abstract (en)
[origin: EP2725432A1] The mechanism has two hermetically sealed chambers i.e. loudspeakers (5, 6), of variable volumes, where an internal pressure of the chambers is able to increase or decrease alternately according to variations in surrounding temperatures. A mechanical connection i.e. rigid rod (7), is provided between the chambers that are arranged such that volume of one of hermetically sealed chambers decreases when volume of other chamber increases, and vice versa. The connection is connected to a mobile unit (10) that is capable of moving relative to the variations in the volume of the chambers. An independent claim is also included for a clock element.
IPC 8 full level
G04B 5/22 (2006.01)
CPC (source: EP)
G04B 5/22 (2013.01)
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
DOCDB simple family (publication)
EP 2725432 A1 20140430; EP 2725432 B1 20160720; WO 2014064150 A1 20140501
DOCDB simple family (application)
EP 12190043 A 20121025; EP 2013072166 W 20131023