Timepiece oscillator with flexure bearings having a long angular stroke
US10935933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2019 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Jul 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mechanical timepiece oscillator includes, between a support and an inertial element, a flexure bearing with flexible strips crossed in projection, including, superposed, an upper level that includes, between an upper support and an upper inertial element, an upper primary strip in a first direction and an upper secondary strip in a second direction, and a lower level that includes, between a lower support and a lower inertial element, a lower primary strip in the first direction and a lower secondary strip in the second direction. The upper level and lower level include, between the support and the upper or respectively lower support, a translational table with an elastic connection along one or two axes of freedom in the oscillation plane, of lower stiffness than that of each flexible strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.