Loading patent…
AssigneeComadur SA
InventorsBruno Besutti, Sébastien Retrouvey, Sébastien Midol
Estimating the term…
A method for manufacturing a jewel of the polycrystalline type, in particular for a timepiece, the jewel including, for example, poly-ruby of the type al2O3Cr or Zirconia of the type ZrO2, the method including a first step of producing a precursor, and a second step of pressing the precursor in order to form a body, the pressing being carried out using a pressing device provided with an upper die and a lower die defining a pressing space in which the precursor is disposed, the device being provided with a wire passing through at least part of the lower die to open out into the pressing space, the lower die being capable of sliding about the wire, the pressing taking place by bringing the lower die and the upper die closer to one another to form a body comprising a bottom face provided with a hole.
A method (10) for manufacturing a jewel (40) of a polycrystalline type for a timepiece, the jewel (40) comprising poly-ruby of a type A12O3Cr or Zirconia of a type ZrO2, the method comprising:
Dependencies are inferred from the claim text.