Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism
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United States of America Patent
Stats
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Oct 11, 2016
Grant Date -
Jun 25, 2015
app pub date -
Dec 22, 2014
filing date -
Dec 23, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention concerns a device for regulating the relative angular speed between a magnetic structure and a resonator magnetically coupled to each other and forming an oscillator which defines a magnetic escapement. The magnetic structure includes at least one annular magnetic path at least partially formed of a magnetic material and the resonator includes at least one element for magnetic coupling to the annular magnetic path, this coupling element being formed of a magnetic material having a physical parameter correlated to the magnetic potential energy of the oscillator. The radial dimension of the annular magnetic path is smaller than a corresponding dimension of the coupling element, and the magnetic material is arranged so that the physical parameter of said magnetic material gradually increases angularly or gradually decreases angularly in order to obtain an angularly extended magnetic potential energy area in each angular period of the annular magnetic path.
First Claim
Other Claims data not available
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International Classification(s)
- 2014 Application Filing Year
- G04B Class
- 214 Applications Filed
- 202 Patents Issued To-Date
- 94.40 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G04B Class
- 18.72 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 11, 2028 |
