Invention Grant
- Patent Title: Economical timepiece barrel
- Patent Title (中): 经济型钟表桶
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Application No.: US13775599Application Date: 2013-02-25
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Publication No.: US08926168B2Publication Date: 2015-01-06
- Inventor: Christophe Cattin , Raphael Loeffel , Gael Feusier
- Applicant: ETA SA Manufacture Horlogere Suisse
- Applicant Address: CH Grenchen
- Assignee: ETA SA Manufacture Horlogère Suisse
- Current Assignee: ETA SA Manufacture Horlogère Suisse
- Current Assignee Address: CH Grenchen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP12157575 20120229
- Main IPC: G04B1/10
- IPC: G04B1/10 ; G04B33/14 ; G04B1/16

Abstract:
Timepiece barrel with a drum coaxial to a barrel arbour in a direction arranged to confine a barrel spring hooked to the drum and to a core coaxial to the barrel arbour and guided thereon. The core pivots in a bore of the drum, and includes a first stopping surface limiting the axial travel of the core, in the direction, relative to an inner face of the drum, and a second stopping surface opposite the first and limiting the axial travel of the core, relative to an outer face of the drum, which is arranged, on the one hand, imprisoned between the first stopping surface and the second stopping surface, and on the other hand to pivot freely about the core.
Public/Granted literature
- US20130223194A1 ECONOMICAL TIMEPIECE BARREL Public/Granted day:2013-08-29
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