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Patent Agency Ranking
公开(公告)号：US20190187625A1
公开(公告)日：2019-06-20
申请号：US16223159
申请日：2018-12-18
Inventor： Lionel TOMBEZ
Abstract: A timepiece includes a mechanical movement with a mechanical oscillator and an electronic device for regulating the medium frequency of this mechanical oscillator. It includes an electromagnetic transducer and an electric converter which includes a power supply capacitor for powering the regulation circuit. The electromagnetic transducer is arranged to supply a voltage signal exhibiting first voltage lobes in first half-alternations and second voltage lobes in second half-alternations of the oscillations of the mechanical oscillator. The regulating device includes a load pump arranged to store momentarily electric loads which are extracted selectively in different time zones according to a time drift detected in the functioning of the mechanical oscillator relative to an auxiliary oscillator, particularly quartz-based. The electric loads extracted are rendered after a certain delay to the power supply capacitor also according to the time drift detected.
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公开(公告)号：US20190187624A1
公开(公告)日：2019-06-20
申请号：US16222124
申请日：2018-12-17
Inventor： Lionel TOMBEZ
Abstract: A timepiece includes a mechanical oscillator and an electromechanical transducer formed by an electromagnetic assembly including a coil and a magnet mounted on the balance of the mechanical oscillator. The induced voltage signal, produced by the electromagnetic transducer during each oscillation, exhibits, in a first half-alternation between the oscillator passes via the neutral position thereof, a first lobe of maximum amplitude having a first polarity and, in a second half-alternation following a passage via the neutral position, a second lobe of maximum amplitude having a second polarity opposite the first. An electric converter includes two power supply capacitors and a device for regulating the medium frequency of the mechanical oscillator. The first power supply capacitor is charged merely with a positive voltage whereas the second capacitor is charged merely with a negative voltage. A load pump is arranged to transfer electric loads between the two capacitors according to a time drift of the mechanical oscillator relative to a time base.
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公开(公告)号：US20220163923A1
公开(公告)日：2022-05-26
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
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：US20210181679A1
公开(公告)日：2021-06-17
申请号：US16767778
申请日：2018-12-03
Inventor： Alexandre HAEMMERLI , Francois GUEISSAZ , Jean-Claude MARTIN , Lionel PARATTE , Yves WINKLER , Gianni DI DOMENICO , Pascal WINKLER , Jean-Luc HELFER , Lionel TOMBEZ , Bapitste HINAUX , Donald Willan CORSON , Michel WILLEMIN
IPC: G04B17/22
Abstract: A balance for timepieces includes a rim, a hub, and at least one arm connecting the hub to the rim. At least one portion of the balance is made of an at least partially amorphous metal alloy. The at least partially amorphous metal alloy is based on an element chosen from the group consisting of platinum, zirconium and titanium, and has a coefficient of thermal expansion comprised between 7 ppm/° C. and 12 ppm/° C. The balance can be manufactured by moulding. A resonator can include such a balance and a monocrystalline quartz balance spring.
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15.发明申请公开(公告)号：US20200026240A1
公开(公告)日：2020-01-23
申请号：US16494496
申请日：2018-03-16
Inventor： Lionel TOMBEZ
Abstract: The mechanical timepiece is equipped with a movement which comprises an indicator mechanism of at least one time data item, a mechanical resonator forming a slave oscillator which paces the running of the indicator mechanism, and a mechanical correction device to prevent a possible time drift in the running of the indicator mechanism. The mechanical correction device is formed by a master mechanical oscillator and a mechanical braking device of the mechanical resonator, this braking device arranged to apply periodically to said mechanical resonator mechanical braking pulses at a braking frequency determined by the master mechanical oscillator. Then, the mechanical system, formed by said mechanical resonator and the braking device, is configured to enable the braking device to be able to start the braking pulses preferably at any position of said mechanical resonator. Preferably, the braking pulses have a duration of less than one quarter of a set-point period.
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