Invention Grant
US09535404B2 Method for adapting a timepiece movement provided to operate in ambient atmospheric pressure so as to operate in a low-pressure atmosphere
有权
一种用于适应在周围大气压力下工作以便在低压气氛中操作的时钟运动的方法
- Patent Title: Method for adapting a timepiece movement provided to operate in ambient atmospheric pressure so as to operate in a low-pressure atmosphere
- Patent Title (中): 一种用于适应在周围大气压力下工作以便在低压气氛中操作的时钟运动的方法
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Application No.: US14363836Application Date: 2012-12-04
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Publication No.: US09535404B2Publication Date: 2017-01-03
- Inventor: Kewin Bas , Cyrille Chatel
- Applicant: CARTIER CREATION STUDIO S.A.
- Applicant Address: CH Steinhausen
- Assignee: CARTIER INTERNATIONAL AG
- Current Assignee: CARTIER INTERNATIONAL AG
- Current Assignee Address: CH Steinhausen
- Agency: Young & Thompson
- Priority: EP11009705 20111209
- International Application: PCT/IB2012/002576 WO 20121204
- International Announcement: WO2013/084043 WO 20130613
- Main IPC: G04B17/20
- IPC: G04B17/20 ; G04B18/00 ; G04B9/00 ; G04B37/02 ; G04B1/22
Abstract:
A method for adapting a timepiece movement includes measuring a loss of energy for each free oscillation of the balance at atmospheric pressure; measuring the loss of energy for each free oscillation at a given low pressure corresponding to a working pressure intended for a modified movement; using i) the measured loss of energy at atmospheric pressure and ii) the measured loss of energy at the given low pressure, determining a percentage of energy gain of the balance between respective i) measurements of the measured loss of energy at atmospheric pressure and ii) measurements of the measured loss of energy at the given low pressure; and reducing a torque delivered to the escapement by a value corresponding to the determined percentage of energy gain.
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