Invention Grant
- Patent Title: Lever escapement for a timepiece
- Patent Title (中): 手腕擒纵机构
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Application No.: US14443827Application Date: 2013-11-14
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Publication No.: US09323220B2Publication Date: 2016-04-26
- Inventor: Xuan Mai Tu
- Applicant: Detra SA
- Applicant Address: CH Preverenges
- Assignee: DETRA SA
- Current Assignee: DETRA SA
- Current Assignee Address: CH Preverenges
- Agency: Brinks Gilson & Lione
- Agent G. Peter Nichols
- Priority: CH2536/12 20121126
- International Application: PCT/EP2013/073807 WO 20131114
- International Announcement: WO2014/079765 WO 20140530
- Main IPC: G04B15/00
- IPC: G04B15/00 ; G04B15/08 ; G04B15/10 ; G04B15/14
Abstract:
The invention relates to a timepiece fitted with a lever escapement wherein the end of contact angles β1 and β2 between the pallet stones and the escapement wheel are respectively higher than the locking-angles δ2 and δ1 of the two locking positions of the lever. This escapement requires neither adjustment nor final alteration of the position of the pallet stones.
Public/Granted literature
- US20150301501A1 Lever Escapement for a Timepiece Public/Granted day:2015-10-22
Information query
