Invention Application
- Patent Title: METHOD OF MANUFACTURING A TIMEPIECE SHAFT
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Application No.: US17877578Application Date: 2022-07-29
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Publication No.: US20220373977A1Publication Date: 2022-11-24
- Inventor: Vannina Linck
- Applicant: ROLEX SA
- Applicant Address: CH Geneva
- Assignee: ROLEX SA
- Current Assignee: ROLEX SA
- Current Assignee Address: CH Geneva
- Priority: EP16174244.0 20160613
- Main IPC: G04D3/00
- IPC: G04D3/00 ; G04B13/02 ; G04B17/06

Abstract:
The method of manufacturing a timepiece shaft (1) includes grinding a ceramic piece, especially to form a balance shaft (1), having a functional portion (2a; 2b) including at least one part (221a; 221b) of a pivot-shank (22a; 22b) and/or at least one part (211a; 211b) of a pivot (21a; 21b), the first functional portion being made of ceramic and a first outer diameter (D1) of the first functional portion being less than 0.5 mm, or less than 0.4 mm, or less than 0.2 mm, or less than 0.1 mm.
Public/Granted literature
- US11982977B2 Method of manufacturing a timepiece shaft Public/Granted day:2024-05-14
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