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公开(公告)号：US11809137B2
公开(公告)日：2023-11-07
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 , Baptiste Hinaux , Donald William Corson , Michel Willemin
IPC: G04B17/22
CPC classification number: G04B17/227 , G04B17/222
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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公开(公告)号：US11573534B2
公开(公告)日：2023-02-07
申请号：US16411794
申请日：2019-05-14
Inventor： Alain Jornod , Francois Gueissaz , Yvan Ferri
Abstract: A thermoelectric watch including a thermoelectric module including a hot plate and a cold plate connected by semiconductor pillars, wherein the hot plate is thermally connected to the back cover of the watch, the cold plate is thermally connected to the case middle of the watch via a support element with at least two branches, at least two branches have a common end on which is held the cold plate of the thermoelectric module, and at least two branches are flexible to absorb shocks.
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Patent Agency Ranking
公开(公告)号：US11190184B2
公开(公告)日：2021-11-30
申请号：US16086497
申请日：2017-01-25
Inventor： Francois Gueissaz
IPC: G01L1/00 , G01D5/20 , H03K17/97 , A63B69/12 , G04F8/08 , A63B71/06 , H03K17/972 , G01L1/12 , G04F8/00
Abstract: A force sensor including: a first part including a detection coil; a second part positioned opposite the first part and including: a ferromagnetic plate translationally movable relative to the first part to move towards the first part when a force is transferred to the sensor and to reduce reluctance of a magnetic circuit formed by the first and second parts in series with a variable gap; and an electronic detection circuit configured to generate a signal dependent on the reluctance of the magnetic circuit. The ferromagnetic plate is formed by an amorphous metal alloy.
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公开(公告)号：US10969745B2
公开(公告)日：2021-04-06
申请号：US16112817
申请日：2018-08-27
Inventor： Alexandre Haemmerli , Francois Gueissaz , Lionel Tombez , Bernhard Schnyder , Silvio Dalla Piazza
Abstract: A piezoelectric element for an automatic frequency control circuit. The element includes a balance spring formed of a piezoelectric crystal strip, a first electrode connected to the automatic control circuit, and disposed on at least a first side of the strip, and a second electrode connected to the automatic control circuit and disposed on at least a second side of the strip. The first and second electrodes are placed on one portion or over the entire length of the balance spring in a predetermined angular distribution.
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公开(公告)号：US20190196408A1
公开(公告)日：2019-06-27
申请号：US16150524
申请日：2018-10-03
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
CPC classification number: G04B17/227 , B22C9/00 , B22D15/00 , B22D25/026 , B22D27/04 , C22C14/00 , C22C16/00 , C22C21/00 , C22C38/08 , G04B17/063 , G04B17/066 , G04B17/222 , G04B18/006 , G04C3/04
Abstract: A process for producing a metal alloy balance wheel by molding, the process including the following steps: a) making a mold in the negative shape of the balance wheel, b) getting hold of 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, e) releasing the balance wheel obtained in step d) from its mold.
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公开(公告)号：US20190020267A1
公开(公告)日：2019-01-17
申请号：US16035917
申请日：2018-07-16
Inventor： Francois Gueissaz
Abstract: A thermoelectric generator includes a voltage source including a thermoelectric element, a starting circuit connected to the voltage source, a DC to DC converter circuit connected to the voltage source, an output connected to the starting circuit and connected to the DC to DC converter circuit, and a controller having an input connected to the voltage source, and outputs connected to the starting circuit and to the DC to DC converter circuit. The controller deactivates the starting circuit and activates the DC to DC converter circuit when a voltage at the output or when a voltage provided by the voltage source rises above a predefined upper voltage threshold. Additionally, the controller reactivates the starting circuit and deactivates the DC to DC converter circuit when a voltage at the output or when a voltage provided by the voltage source drops below a predefined lower voltage threshold.
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公开(公告)号：US09188958B2
公开(公告)日：2015-11-17
申请号：US14430646
申请日：2013-09-20
Inventor： Thierry Hessler , Francois Gueissaz , Michel Willemin , Jean-Claude Martin
IPC: G04B17/06
CPC classification number: G04B17/06 , G04B17/066 , G04B45/0007 , G04B45/02
Abstract: A watch or timepiece regulating member includes a balance, a balance-cock, at least one light energy source, and at least one balance spring attached between the balance and the balance-cock. The balance spring is made of quartz or of glass or of ceramic or is partially transparent to visible and/or ultraviolet wavelengths or made of an at least partially amorphous material and transmits and diffuses light emitted by the light energy source.
Abstract translation: 手表或钟表调节构件包括平衡器，平衡旋塞，至少一个光能源，以及附接在天平和平衡旋塞之间的至少一个平衡弹簧。 平衡弹簧由石英或玻璃或陶瓷制成，或对可见光和/或紫外线波长部分透明或由至少部分无定形材料制成，并透射和漫射由光能源发出的光。
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