Part for timepiece movement, timepiece movement, timepiece, and method for manufacturing such a part for timepiece movement
AssigneeLVMH Swiss Manufactures SA
InventorsGuy Semon, Jason Lund, Brian Jensen
Life of this patent
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Abstract
Part for a timepiece movement, made of a composite material comprising a rigid matrix and a forest of nanotubes contained in the rigid matrix.
Claims13
A spring for a timepiece movement comprising at least one spiral flexible portion extending in a plane around a central axis perpendicular to said plane. said flexible portion being made of a composite material comprising nanotubes bound in a matrix,
- wherein the nanotubes form a forest of nanotubes, the nanotubes being juxtaposed and generally arranged in parallel to said central axis,
- wherin bending of said spiral flexible portion in said plane does not result in a bending of the nanotubes, mechanical properties of said spiral flexible portion being provided mostly by the matrix.
An oscillator for a timepiece movement, said oscillator extending in a plane and comprising a fixed part, a rotor rotatable around a central axis perpendicular to said plane and elastic suspensions connecting the rotor to the fixed part, at least said elastic suspensions being made of a composite material comprising nanotubes bound in a matrix,
- wherein the nanotubes form a forest of nanotubes, the nanotubes being juxtaposed and generally arranged in parallel to said central axis,
- whereby bending of said elastic suspensions in said plane does not result in a bending of the nanotubes, mechanical properties of said elastic suspensions being provided mostly by the matrix.
Dependencies are inferred from the claim text.