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公开(公告)号:US11692100B2
公开(公告)日:2023-07-04
申请号:US16486933
申请日:2018-02-26
Inventor: Jean-Luc Bazin , Csilla Miko
CPC classification number: C09C1/0015 , C09C1/62 , C09C2200/1054 , C09C2200/301 , C09C2200/303 , C09C2200/307
Abstract: A multilayered interference pigment containing, in succession:
a metal core in the form of a flake, the metal core containing a material selected from gold, silver, palladium, rhodium, ruthenium, platinum, osmium, iridium and an alloy thereof;
a first layer of transparent dielectric material; and
a second discontinuous metal layer making it possible to both reflect a portion of the light beam and to transmit another portion of this beam onto the metal core.-
公开(公告)号:US20230205137A1
公开(公告)日:2023-06-29
申请号:US18056990
申请日:2022-11-18
Inventor: Lionel PARATTE , Alexandros MOUSKEFTARAS , Ahmad ODEH
CPC classification number: G04B15/14 , G04B17/063
Abstract: A method for the fine adjustment of the rate of a mechanical oscillator with an oscillating inertial mass, equipped, in a first step, with an actuator made of material suitable for irreversible local micro-expansion under the action of laser fires, to impart to an inertia-block a radial travel during suitable laser fires on a writing zone of the actuator, in a second step, the initial rate of the oscillator is set and measured, in a third step, the direction and the value of the deviation required to achieve a predetermined rate range, and of the travel to be imparted to inertia-blocks are calculated, in a fourth step, a writing zone is subjected to femtosecond laser fires to create expansion lines by local molecular expansion to radially deform the actuator, in a fifth step the rate is measured and the third step and fourth step are repeated if required.
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公开(公告)号:US11685987B2
公开(公告)日:2023-06-27
申请号:US17081375
申请日:2020-10-27
Inventor: Christian Manasterski , Marion Gstalter
CPC classification number: C23C14/067 , C23C14/021 , C23C14/34 , C23C14/5813
Abstract: A layer of lanthanum boride of stoichiometry LaBx where x is between 9 and 12 is deposited on substrate, for example a stainless steel watch dial, and subsequently treated with a laser, such that the portion(s) of the layer treated with the laser change colour according to the laser power. This produces multicoloured surfaces having high resistance to corrosion and abrasion. The layer of LaBx is deposited by PVD and by cathode sputtering, using a LaB6 target of purple-violet colour, such that the colour of the deposited layer differs from the colour of the target. The laser treatment at specific powers changes the stoichiometry of the layer in the treatment portions, such that the colour of these portions changes according to the stoichiometry obtained. At higher powers, the laser will remove the layer of LaBx. Thus the colour of the treated portions is determined by the material of the substrate.
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公开(公告)号:US11669050B2
公开(公告)日:2023-06-06
申请号:US17024928
申请日:2020-09-18
Inventor: Jérôme Favre , Cedric Nicolas , Jean-Jacques Born
Abstract: A watch self-winding device with rotary motion, including a base carrying a motor driving in rotation a support carrying a watch and includes an upper watch holder with a surface in direct contact with a watch, this support includes a microphone for listening to a watch and an embedded electronic circuit processing the signal from the microphone, the device includes, in order to supply power to the embedded electronic circuit, a first coil fixed to the base and powered by a power source carried or relayed by the base, and a second coil embedded in the support, coaxial to the first coil and arranged to transmit power to the embedded electronic circuit, which is arranged to exchange information with a static electronic circuit in the base.
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公开(公告)号:US11640140B2
公开(公告)日:2023-05-02
申请号:US17669476
申请日:2022-02-11
Inventor: Alexandre Haemmerli , Francois Gueissaz , Jean-Claude Martin , Lionel Paratte , Yves Winkler , Gianni Di Domenico , Pascal Winkler , Jean-Luc Helfer , Lionel Tombez , Baptiste Hinaux , Donald William Corson , Michel Willemin
IPC: G04B17/22 , G04B18/00 , G04B17/06 , B22C9/00 , B22D15/00 , B22D25/02 , B22D27/04 , C22C14/00 , C22C16/00 , C22C21/00 , C22C38/08 , G04C3/04
Abstract: A process for producing a metal alloy balance wheel by molding includes a) making a mold in the negative shape of the balance wheel; b) obtaining a metal alloy that has a thermal expansion coefficient of less than 25 ppm/° C. and is able to be in an at least partly amorphous state when it is heated to a temperature between its glass transition temperature and its crystallization temperature; c) putting the metal alloy into the mold, the metal alloy being heated to a temperature between its glass transition temperature and its crystallization temperature so as to be hot-molded and to form a balance wheel; d) cooling the metal alloy to obtain a balance wheel made of the metal alloy; and e) releasing the balance wheel obtained in step d) from its mold. The process also includes a step for over-molding flexible centering components in the hub.
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公开(公告)号:US20230114281A1
公开(公告)日:2023-04-13
申请号:US17805886
申请日:2022-06-08
Inventor: Gregory KISSLING , Denis VINCENT , Stéphane LAUPER , Bernard BERTHEVILLE
Abstract: An item produced in a cermet material including by weight between 85 and 94% of a ceramic phase and between 6 and 15% of a metal binder phase, the ceramic phase mostly including a tungsten carbide phase and optionally one or more phases of one or more secondary carbides selected from the elements Ti, Zr, Hf, V, Nb, Ta, Cr and Mo, the metal binder comprising Ag, Pd, Ru and Co. The invention generally relates to the method for manufacturing said item.
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公开(公告)号:US20230099987A1
公开(公告)日:2023-03-30
申请号:US17855020
申请日:2022-06-30
Inventor: Jean-Luc Arend , Arnaud CASAGRANDE
Abstract: A method is provided for enhancing the detection of the start time of a reference oscillator (4) of a super-regenerative receiver (1), which includes the reference oscillator, a bias current generator (7), an oscillation detector (6), and an impedance matching unit (3). Following the supply of the bias current (i_vco) after receiving the activation control signal (Sosc), an oscillation detection is performed by the oscillation detector (6), and once oscillation is detected, an additional amplification current (iboost) dependent on the envelope of the detected oscillation, of an amplification current generation circuit is supplied to the reference oscillator (4) in addition to the bias current to amplify the oscillation signal to be above a critical oscillation start threshold so as to precisely define the start time of the oscillator, and enable the oscillation detector (6) to order the stoppage of oscillation of the reference oscillator (4).
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公开(公告)号:US20230062527A1
公开(公告)日:2023-03-02
申请号:US17869273
申请日:2022-07-20
Inventor: Matthias IMBODEN , Jean-Pierre MIGNOT , Milan CALIC , Cédric NICOLAS , Jean-Jacques BORN
IPC: G04B11/00
Abstract: A mechanism (1) including a magnetic gear (2) including a first wheel (6B) and a second wheel (6C) provided with a first magnetic toothing (10) and a second magnetic toothing (12) respectively. The first and second magnetic toothings are respectively formed by first and second teeth made of a soft ferromagnetic material; and the magnetic gear (2) further includes a third wheel (6A) arranged between the first and second wheels (6B, 6C) and provided with a third magnetic toothing (8) formed by permanent magnetic poles, in particular by bipolar magnets. In general, the first wheel is a drive wheel, whereas the second wheel is driven into order to carry out a function or transmit a torque. The third intermediate wheel is preferably mounted such that it can rotate freely.
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公开(公告)号:US11592784B2
公开(公告)日:2023-02-28
申请号:US16713079
申请日:2019-12-13
Inventor: Jean-Jacques Born , Dominique Lechot , Yves Winkler , Christophe Vincent
IPC: G04B31/02 , G04B13/02 , G04B31/012
Abstract: A bearing for an arbor or staff of a rotary wheel set of a timepiece movement, the bearing including a bearing block provided with a housing and an endstone arranged inside the housing, the endstone having a main body provided with a cavity configured to receive a pivot of the arbor of the rotary wheel set, the pivot having the shape of a first cone having a first solid angle, the apex of the first cone being rounded with a predefined first radius of curvature in a range from 0.2 μm to 50 μm, the cavity having a second cone shape with a second solid angle, greater than the first solid angle, so that the pivot can rotate in the cavity, the apex of the second cone being rounded and having a predefined second radius of curvature. The second radius of curvature is smaller than the first radius of curvature.
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公开(公告)号:US11583044B2
公开(公告)日:2023-02-21
申请号:US16349810
申请日:2017-08-09
Inventor: Claire Rannoux , Nicolas Francois
IPC: B29C48/18 , A44C27/00 , B29C48/35 , B29C48/07 , B29C48/30 , A44C5/00 , B29C48/21 , B29C48/49 , B29L7/00
Abstract: A method for manufacturing an external component for watches or jewellery, especially a bracelet, includes the steps of: providing a substrate including a first face opposite to a second face and co-extrusion coating the first face and the second face of the substrate respectively with a first and a second band of synthetic material. The first band forms on the first face a transparent or translucent layer so that all or part of the substrate remains visible.
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