METHOD FOR THE SURFACE TREATMENT OF PARTICLES OF A METAL POWDER AND METAL POWDER PARTICLES OBTAINED THEREBY

    公开(公告)号:US20200215607A1

    公开(公告)日:2020-07-09

    申请号:US16628355

    申请日:2018-06-21

    Abstract: A method for surface treatment of a metal material in a powder state is provided, the method including obtaining a powder formed from a plurality of particles of the metal material to be treated; and subjecting the powder to an ion implantation process by directing a beam of singly-charged or multi-charged ions towards an outer surface of the particles, the beam being produced by a source of singly-charged or multi-charged ions, whereby the particles have an overall spherical shape with a radius (R). There is also provided a material in a powder state formed from a plurality of particles having a ceramic outer layer and a metal core, the particles having an overall spherical shape.

    MOVEMENT WITH POWER RESERVE EXTENSION
    7.
    发明申请

    公开(公告)号:US20180284696A1

    公开(公告)日:2018-10-04

    申请号:US15887375

    申请日:2018-02-02

    CPC classification number: G04B19/02 G04B1/12 G04B17/06 G04B17/285 G04C3/08

    Abstract: The invention relates to a timepiece movement comprising a first regulating member and a first escapement connected by a first train to a first energy source, the first train, the first escapement, the first regulating member and the first energy source defining a first assembly, a second regulating member and a second escapement connected by a second train to a second energy source, the second train, the second escapement, the second regulating member and the second energy source defining a second assembly, at least one differential gear provided to ensure a kinematic connection between the first assembly and the second assembly, and means for displaying the current time. According to the invention, the timepiece movement includes means for stopping and allowing operation of one of the two regulating members, and the differential gear carries the time display means to display the time regardless of which regulating member is operating.

    METHOD FOR CUTTING WATCH CRYSTALS
    8.
    发明申请

    公开(公告)号:US20190113890A1

    公开(公告)日:2019-04-18

    申请号:US16104238

    申请日:2018-08-17

    Abstract: Method for cutting a watch crystal along a contour in a plate of transparent material, with the following steps: making, on a first side of the plate, a first cut line or kerf to form a first chamfer, for each crystal of the plate; turning the plate over and marking the position of the first chamfers or of a previously made machined marking; making, on a second side, a second cut line or kerf to form a second chamfer, for each crystal; separating the crystals by machining through the plate at each contour to form an edge of the crystal.

    COMPONENT OF EXTERNAL PARTS FOR A TIMEPIECE MADE OF WELDED MATERIALS

    公开(公告)号:US20170139376A1

    公开(公告)日:2017-05-18

    申请号:US15312802

    申请日:2015-05-22

    Inventor: Jean-Luc BAZIN

    CPC classification number: G04B37/22 G04D3/00

    Abstract: A component of external parts for a timepiece, the component including a first silicon-based part and a second metal-based part, where one surface of the first part is welded using laser-type electromagnetic radiation onto a surface of the second part in order to secure the parts to each other. A method for fabrication of a component of external parts for a timepiece, by forming a first silicon-based part and a second metal-based part, mounting a surface of the first part on a surface of the second part, and welding, using laser-type electromagnetic radiation, the surface of the first part mounted on the surface of the second part, in order to secure the parts to each other.

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