Timepiece movement with low magnetic sensitivity
    1.
    发明授权
    Timepiece movement with low magnetic sensitivity 有权
    钟表运动,低灵敏度

    公开(公告)号:US09004747B2

    公开(公告)日:2015-04-14

    申请号:US13720167

    申请日:2012-12-19

    CPC classification number: G04C5/005 G04B17/26 G04B43/007

    Abstract: A timepiece movement comprising including a sprung balance resonator mounted between a bar and a bottom plate wherein the balance is formed from a ferromagnetic material. The timepiece movement includes a magnetic polarizing device for the balance spring for maintaining a predefined state of polarization in the balance spring and including a permanent magnetizing device which forms a magnetic field in the plane of the balance spring so as to totally or almost totally magnetically saturate the balance spring in the absence of an external magnetic field.

    Abstract translation: 一种钟表运动,包括安装在杆和底板之间的弹簧平衡谐振器,其中所述天平由铁磁材料形成。 该钟表运动包括用于平衡弹簧的磁性偏振装置,用于在平衡弹簧中保持预定的偏振状态,并且包括在平衡弹簧的平面中形成磁场以使其完全或几乎完全磁饱和的永久磁化装置 平衡弹簧在没有外部磁场的情况下。

    Anti-magnetic timekeeping mechanisms
    2.
    发明授权
    Anti-magnetic timekeeping mechanisms 失效
    防磁时间机制

    公开(公告)号:US3683616A

    公开(公告)日:1972-08-15

    申请号:US3683616D

    申请日:1969-07-29

    CPC classification number: G04B43/007

    Abstract: Time-keeping mechanism having magnetic operating parts but exhibiting truly non-magnetic properties. All parts of the mechanism that are mounted on the balance staff and the pallet arbor, the escapement wheel as well as at least the main portion of the balance staff are made of a material having a magnetic permeability of less than 1.01.

    Abstract translation: 具有磁性操作部件但具有真正非磁性的时间保持机构。 安装在平衡工作人员和托盘心轴,擒纵轮以及平衡人员的至少主要部分的机构的所有部分由导磁率小于1.01的材料制成。

    BALANCE SPRING FOR TIMEPIECE MOVEMENTS AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20190196407A1

    公开(公告)日:2019-06-27

    申请号:US16214257

    申请日:2018-12-10

    Abstract: A balance spring for a balance with a blank containing: niobium: the remainder to 100 wt %, titanium: between 40 and 60 wt %, traces of elements selected from the group formed of O, H, C, Fe, Ta, N, Ni, Si, Cu, Al, between 0 and 1600 ppm by weight individually, and less than 0.3 wt % combined, a step of β-quenching the blank with a given diameter, such that the titanium of the alloy is essentially in solid solution form with β-phase niobium, the α-phase titanium content being less than or equal to 5% by volume, at least one deformation step of the alloy alternated with at least one heat treatment step such that the niobium and titanium alloy obtained has an elastic limit higher than or equal to 600 MPa and a modulus of elasticity lower than or equal to 100 GPa, a winding step to form the balance spring being performed prior to the final heat treatment step, prior to the deformation step, a step of depositing, on the alloy blank, a surface layer of a ductile material such as copper, the surface layer of ductile material being retained on the balance spring, the thermoelastic coefficient of the niobium and titanium alloy being adapted accordingly.

    COMPONENT FOR A TIMEPIECE MOVEMENT
    4.
    发明申请

    公开(公告)号:US20180024501A1

    公开(公告)日:2018-01-25

    申请号:US15652283

    申请日:2017-07-18

    Abstract: The invention relates to a pivot arbor (1) for a timepiece movement comprising at least one pivot (3) made of a first non-magnetic metal material (4) at at least one of the ends thereof in order to limit the sensitivity thereof to magnetic fields, at least the outer surface of said pivot (3) being coated with a first layer (5) of a second material selected from the group comprising Ni, NiB and NiP, and preferably chemical NiP. At least the first layer (5) of second material is at least partially coated with a second layer (6) of a third material selected from the group comprising gold, silver, copper, platinum, rhodium, palladium and their alloys.The invention concerns the field of timepiece movements.

    TIMEPIECE MOVEMENT WITH LOW MAGNETIC SENSITIVITY
    5.
    发明申请
    TIMEPIECE MOVEMENT WITH LOW MAGNETIC SENSITIVITY 有权
    具有低磁感度的定时运动

    公开(公告)号:US20130155819A1

    公开(公告)日:2013-06-20

    申请号:US13720167

    申请日:2012-12-19

    CPC classification number: G04C5/005 G04B17/26 G04B43/007

    Abstract: The invention relates to a timepiece movement (1) comprising a sprung (7) balance (5) resonator (3) mounted between a bar (2) and a bottom plate (4) wherein the balance (7) is formed from a ferromagnetic material. According to the invention, the timepiece movement includes a magnetic polarising device (15) for said balance spring for maintaining a predefined state of polarisation in the balance spring (7) and including permanent magnetising means which forms a magnetic field in the plane of the balance spring so as to totally or almost totally magnetically saturate the balance spring (7) in the absence of an external magnetic field.The invention concerns the field of timepieces.

    Abstract translation: 本发明涉及一种包括安装在杆(2)和底板(4)之间的弹簧(7)平衡(5)谐振器(3)的钟表运动(1),其中所述天平(7)由铁磁材料 。 根据本发明,钟表运动包括用于所述平衡弹簧的磁性偏振装置(15),用于在平衡弹簧(7)中保持预定的偏振状态,并且包括在平衡平面中形成磁场的永久磁化装置 弹簧,以便在没有外部磁场的情况下完全或几乎完全磁化地使平衡弹簧(7)饱和。 本发明涉及钟表领域。

    Watch with hand in form of circular film and provided with electrostatic
shielding device
    6.
    发明授权
    Watch with hand in form of circular film and provided with electrostatic shielding device 失效
    手表以圆形薄膜形式备有静电屏蔽装置

    公开(公告)号:US4737941A

    公开(公告)日:1988-04-12

    申请号:US041333

    申请日:1987-04-22

    CPC classification number: G04C3/008 G04B43/007 G04B45/04

    Abstract: A wrist watch with hour and minute hands in the form of rotatable circular films, having an electrostatic shielding device which grounds a glass of the watch through a back cover of the watch, to eliminate static electricity produced in the glass. Also, because of the use of thin rotatable circular films for the minute and hour hands, the thickness of the watch can be considerably reduced.

    Abstract translation: 手表以小时和分针的形式可旋转的圆形薄膜,具有静电屏蔽装置,通过手表的后盖将手表的玻璃置于一旁,以消除玻璃中产生的静电。 此外,由于使用薄且可旋转的圆形薄膜用于分针和时针,手表的厚度可以大大降低。

    Case for watches
    7.
    发明授权
    Case for watches 失效
    手表案例

    公开(公告)号:US3585009A

    公开(公告)日:1971-06-15

    申请号:US3585009D

    申请日:1968-06-04

    Inventor: HARIGAYA HIROSHI

    CPC classification number: C22C38/22 G04B43/007

    Abstract: A CASE FOR WATCHES FORMED FROM A NON-CORROSIVE FERRITE STAINLESS STEEL PREFERABLY AN FE-CR-MO-NB ALLOY OR FE-CR-MO-TI WHEREBY SAID CASE HAS A HIGH RESISTANCE TO CORROSION AND A HIGH PERMEABILITY TO PROTECT THE MOVEMENT OF THE WATCH FROM AN EXTERNAL MAGNETIC FIELD.

    METHOD FOR MANUFACTURING A BALANCE SPRING FOR A TIMEPIECE MOVEMENT

    公开(公告)号:US20190196406A1

    公开(公告)日:2019-06-27

    申请号:US16211289

    申请日:2018-12-06

    Abstract: A method for manufacturing a balance spring for a balance, which includes creating a blank from an alloy containing: niobium: the remainder to 100 wt %, titanium: between 40 and 60 wt %, traces of elements selected from the group formed of O, H, C, Fe, Ta, N, Ni, Si, Cu, Al, between 0 and 1600 ppm by weight individually, and less than 0.3 wt % combined; β-quenching the blank, such that the titanium of the alloy is essentially in solid solution form with β-phase niobium, the α-phase titanium content being less than or equal to 5% by volume, at least one deformation step of the alloy alternated with at least one heat treatment step such that the niobium and titanium alloy obtained has an elastic limit higher than or equal to 600 MPa and a modulus of elasticity lower than or equal to 100 GPa, a winding step to form the balance spring being performed prior to the final heat treatment step, prior to the deformation step, a step of depositing, on the alloy blank, a surface layer of a ductile material such as copper, to facilitate the wire shaping process, the thickness of the deposited ductile material layer is chosen such that the ratio of the area of ductile material to the area of NbTi alloy for a given cross-section of wire is less than 1.

Patent Agency Ranking