Balance Wheel Type Patents (Class 368/169)
  • Patent number: 9740170
    Abstract: An oscillator (10) includes a spiral spring (11) made from a paramagnetic or diamagnetic material and an assembled balance wheel (12) having a shaft (13) on which the following elements are fitted: a balance wheel (14), a plate (15) and a collet (16) rigidly connected with the spiral spring (11). The maximum diameter (Dmax) of the shaft is less than 3.5, or even 2.5, or even 2 times the minimum diameter (D1) of the shaft on which one of the elements is fitted, or the maximum diameter (Dmax) of the shaft is less than 1.6, or even 1.3 times the maximum diameter (D2) of the shaft on which one of the elements is fitted.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: August 22, 2017
    Assignee: ROLEX SA
    Inventors: Jean-Louis Bertrand, Benoit Boulenguiez, Thomas Cimprich, Raoul Behrend
  • Patent number: 9645551
    Abstract: A method of improving pivoting of a wheel set for a scientific instrument, including an arbor pivoting or oscillating about an axis, in which: static balancing of the wheel set is performed to bring the center of gravity onto the axis; a desired value is determined for resulting unbalance moment of the wheel set about the axis, corresponding to a predetermined divergence between a first principal longitudinal axis of inertia of the wheel set, and the axis; at a predetermined speed about the axis, the resulting unbalance moment is measured with regard to the axis; and an adjustment of the resulting unbalance moment is made within a given determined tolerance with regard to the desired value, and performed by machining both sides of a median plane including the two secondary axes of inertia of the wheel set.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: May 9, 2017
    Assignee: The Swatch Group Research and Development Ltd
    Inventors: Thierry Conus, Marco Verardo, Ivan Villar, Andres Cabezas Jurin, Jean-Luc Helfer, Emmanuel Graf
  • Patent number: 9429916
    Abstract: A timepiece resonator including one weight connected by flexible strips to fixed attachment points of a fixed structure, this weight being subjected to a torque and/or a stress, and oscillating with at least two degrees of freedom in translation, and these flexible strips maintain the oscillations of this weight about a virtual pivot.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: August 30, 2016
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Jean-Jacques Born, Jean-Luc Helfer
  • Patent number: 9128465
    Abstract: To provide a timepiece balance with hairspring capable of changing the moment of inertia of the balance wheel without involving generation of a one-sidedness in weight. There is provided a balance with hairspring including a balance staff, and a balance wheel arranged around the balance staff, wherein there are provided a first rim constituting the balance wheel and having a guide portion configured to vary in the distance from the balance staff in correspondence with a peripheral direction around the balance staff, an elastic portion arranged so as to be slidable along the guide portion and capable of elastic deformation in the radial direction around the balance staff, and a second rim having a plurality of weight portions arranged in the peripheral direction.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 8, 2015
    Assignee: SEIKO INSTRUMENTS INC.
    Inventors: Takuma Kawauchiya, Takashi Niwa, Masahiro Nakajima
  • Patent number: 9058021
    Abstract: The balance spring stud holder has a housing in the form of a groove arranged to longitudinally receive and position the stud. The housing is at least partially laterally closed by an elastic strip which is arranged to return the stud against the bottom of the groove so that the stud can be locked, when the stud is inserted into the housing between the elastic strip and the bottom of the groove.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: June 16, 2015
    Assignee: Blancpain S.A.
    Inventor: Samuel Cordier
  • Patent number: 9016933
    Abstract: A balance wheel for timepiece movement, which obeys the following condition: D5·f/I?20·10?2m3kg?1s?1 where D is the diameter of the balance wheel, f is the frequency and I is the moment of inertia.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: April 28, 2015
    Assignee: Rolex S.A.
    Inventors: Raphael Cettour-Baron, Denis Rudaz
  • Patent number: 9004746
    Abstract: Timepiece wheel set (1) including a first guide surface (2) cooperating with a second guide surface (3) associated with a bridge (50), for pivotally mounting the wheel set (1) relative to the bridge (50) about an axis (D). The first guide surface (2) is a single surface, located on a median plane (P) of said wheel set (1), orthogonal to this axis (D), for holding the wheel set (1) careened or in a cantilever arrangement relative to this bridge (50), and the wheel set (1) is free of any guide arbours on either side of this guide surface (2).This wheel set (1) forms a ball bearing (10) wherein the first guide surface (2) forms an internal raceway (9) for balls (11) and wherein an external ball race (12) mounted on the bridge (50) includes the second guide surface (3) forming an external raceway for the balls (11).
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 14, 2015
    Assignee: Blancpain SA
    Inventor: Vincent Beccia
  • Patent number: 8979359
    Abstract: A balance spring including a first hairspring, the inner coil of which includes a collet arranged to be mounted on a staff, and a second hairspring connected to the outer coil of the first hairspring by a raised terminal curve device. The inner coil of the second hairspring includes a device for shifting the pinning point including a free end arranged to be pinned up to a stud in the plane of the second hairspring.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 17, 2015
    Assignee: Montres Breguet S.A.
    Inventor: Jean-Philippe Rochat
  • Patent number: 8939639
    Abstract: The present invention relates to a tourbillon of a movement having: a rotatably mounted rotating carriage (6) connected to a second pinion (46), a balance (12) mounted on the rotating carriage (6) relative to a balance shaft (28) and also having an escape wheel (16) mounted on the rotating carriage (6) and operatively connected to the balance (12) via a lever, characterized by: a brake element (30) arranged on the rotating carriage (6), which can be brought into engagement with the balance (12) and is movable axially to the balance shaft (28).
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: January 27, 2015
    Assignee: Glashuetter Uhrenbetrieb GmbH
    Inventor: Joern Heise
  • Patent number: 8905630
    Abstract: A timepiece includes a first oscillator oscillating at a first frequency and connected by a first gear train to an energy source to display the time. The timepiece also includes a chronograph system including a second gear train connected to the first gear train via a coupling device for selectively measuring a time. The chronograph system further includes a second oscillator, which is connected to the second gear train and oscillates at a second frequency. Moreover, the second gear train is connected to the first gear train by an elastic coupling, in order to synchronize the rate of the two oscillators using the same energy source when the coupling device is in a coupled position.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: December 9, 2014
    Assignee: The Swatch Group Research and Development Ltd.
    Inventors: Jean-Luc Helfer, Thierry Hessler, Thierry Conus
  • Patent number: 8888358
    Abstract: An oscillator spring material comprising a mixture of a host material with an additive in proportions which permit the thermal evolution of the material's elastic modulus to be tuned, e.g. to correct or compensate for other thermal changes in an oscillator system. The additive comprises a crystalline material having an abnormal thermal evolution of elastic modulus. The host material has a normal thermal evolution of elastic modulus. The additive is mixed with the host material before the host material undergoes a phase transformation into its final form. The additive has a phase transformation temperature higher than the host material, so that additive remains in the same state while the host material phase transformation takes place.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: November 18, 2014
    Assignee: Carbontime Limited
    Inventor: Gideon Rory Levingston
  • Patent number: 8845186
    Abstract: A spiral spring (10) for the movement of a watch, includes a plurality of coplanar leaves (10a, 10b) wound into one another. Furthermore, the inner ends of each leaf are rigidly connected to a single collet (12). The leaves (10a, 10b) and the collar (12) are produced as a single part.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 30, 2014
    Assignee: Manufacture et fabrique de montres et chronometres Ulysse Nardin Le Locle SA
    Inventors: Stephane Von Gunten, Pierre Gygax, Lucas Humair
  • Patent number: 8845185
    Abstract: A spiral spring (10) for the movement of a watch, includes a plurality of coplanar leaves (10a, 10b) wound into one another. Furthermore, the inner ends of each leaf are rigidly connected to a single collet (12). The leaves (10a, 10b) and the collar (12) are produced as a single part.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 30, 2014
    Assignee: Manufacture et fabrique de montres et chronometres Ulysse Nardin le Locle SA
    Inventors: Stephane Von Gunten, Pierre Gygax, Lucas Humair
  • Patent number: 8770828
    Abstract: An oscillator system (30) of a mechanical timepiece, comprising: at least one balance wheel (35) that is free to rotate about an axis; and at least one hairspring (31) connecting the at least one balance wheel (35) to a fixed point or to another balance wheel (36), the hairspring (31) including: a first coil (32) connected to the at least one balance wheel (35); and a second coil (33) connected to the fixed point or to the another balance wheel (36); and a transition section (34) connecting the first coil (32) to the second coil (33), wherein an approximately linear restoring torque for the at least one balance wheel (35) is primarily provided by elastic deformation of the transition section (34) and the coils (32, 33), in order to generate an oscillatory motion for the at least one balance wheel (35).
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: July 8, 2014
    Assignees: MicroTechne Research & Development Center Ltd., Tianjin Sea-gull Watch Co. Ltd.
    Inventors: Ho Ching, Ching Tom Kong, Guang Li Ma
  • Publication number: 20140185418
    Abstract: There is provided a balance which includes a balance staff which is pivotally supported rotatably; and a balance wheel which is arranged around the balance staff and in which one end portion is a fixed end portion fixed to a connection arm which is radially connected to the balance staff and the other end portion is a free end portion which can be radially deformed. The balance wheel has a first rim which is connected to the connection arm and a second rim which is arranged to be overlapped with the first rim and formed of a material having a linear expansion coefficient different from the first rim, and the first rim and the second rim are bonded together by using a melting portion in which respective materials thereof are melted.
    Type: Application
    Filed: December 5, 2013
    Publication date: July 3, 2014
    Applicant: SEIKO INSTRUMENTS INC.
    Inventors: Masahiro NAKAJIMA, Takashi NIWA, Takuma KAWAUCHIYA
  • Patent number: 8764282
    Abstract: A spiral spring (10) for the movement of a watch, includes a plurality of coplanar leaves (10a, 10b) wound into one another. Furthermore, the inner ends of each leaf are rigidly connected to a single collet (12). The leaves (10a, 10b) and the collar (12) are produced as a single part.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: July 1, 2014
    Assignee: Manufacture et fabrique de montres et chronometres Ulysse Nardin Le Locle SA
    Inventors: Stéphane Von Gunten, Pierre Gygax, Lucas Humair
  • Patent number: 8672535
    Abstract: This spiral-spring and balance wheel regulating member includes a shaft mounted pivotably on the frame of a timepiece. The spiral spring includes at least one blade, whose inner end is designed to be fixed to the pivot shaft and whose outer end is made in one piece with a member (2) for connection to the frame, the rigidity of this connecting member being substantially greater than that of the spiral. The connecting member (2), on one hand, and the frame (9) or a member (6) for the angular positioning of the regulating member on the frame, on the other hand, both have respective bearing surfaces which are at least partially complementary, and these complementary bearing surfaces are joined.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: March 18, 2014
    Assignee: Rolex S.A.
    Inventors: Benoit Boulenguiez, Eric Jolidon
  • Patent number: 8668378
    Abstract: A regulating organ adapted to be integrated into a mechanical watch, comprising a first balance and a first spiral fastened to an axle, and-at least one second balance, wherein the second balance is fastened on the axle of said first balance.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 11, 2014
    Assignee: Societe Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie
    Inventor: Gilles Pellet
  • Patent number: 8636403
    Abstract: A timepiece component, such as a balance, an oscillating mass or a wheel, having a structure made according to a micro-manufacturing technique, such as the DRIE technique. The component has at least one member formed in or at the periphery of the structure and made of a material different from that of the structure. This member is typically metal and is formed by electro-forming using a cavity of the structure as a mold.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: January 28, 2014
    Assignee: Patek Philippe sa Geneve
    Inventors: Frédéric Maier, Stéphane Von Gunten, Sylvain Jeanneret
  • Publication number: 20130265859
    Abstract: Device for protecting a timepiece balance spring (1) against interfering magnetic fields comprising a balance (2) made of amorphous ferromagnetic material.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 10, 2013
    Applicant: THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD
    Inventor: Jean-François Dionne
  • Patent number: 8550699
    Abstract: The invention relates to a composite balance (45, 45?) formed in a layer of silicon-based material (21) and including a hub (39, 39?) connected to a felloe (37, 37?) by at least one arm (40, 41, 42, 43). According to the invention, the felloe (37, 37?) includes at least one additional part approximately in the shape of a notched ring (23, 23?) of higher the than the silicon-based material, which increases the inertia of the balance. The invention also relates to a method 1 of manufacturing this type of balance. The invention concerns the field of timepiece movements.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: October 8, 2013
    Assignee: Nivarox-FAR S.A.
    Inventors: Pierre-André Bühler, Marco Verardo, Thierry Conus, Jean-Philippe Thiebaud, Jean-Bernard Peters, Pierre Cusin
  • Patent number: 8523426
    Abstract: The invention relates to a one-piece regulating member including a balance cooperating with a hairspring made in a layer of silicon-based material and including a balance spring coaxially mounted on a collet. According to the invention, the collet includes one extending part that projects from the balance spring and which is made in a second layer of silicon-based material and is secured to the balance.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: September 3, 2013
    Assignee: Nivarox-FAR S.A.
    Inventors: Pierre-André Bühler, Marco Verardo, Thierry Conus, Jean-Philippe Thiebaud, Jean-Bernard Peters, Pierre Cusin
  • Publication number: 20130176829
    Abstract: An oscillating mechanism for a timepiece movement, including a first rigid element and a second rigid element, each one fixed on a different element of the movement and at least one of which is mobile relative to the other and pivots about an axis. The mechanism is monobloc and flexible with a variable geometry, and includes a first elastic restoring mechanism producing an elastic connection between the first rigid element and an intermediate rigid element, and a second elastic restoring mechanism producing an elastic connection between the intermediate element and the second rigid element, which all are coplanar according to one plane and configured to be deformed according to the plane.
    Type: Application
    Filed: July 4, 2011
    Publication date: July 11, 2013
    Applicant: Nivarox-FAR S.A.
    Inventors: Pierre Cusin, Christian Charbon, Marco Verardo
  • Patent number: 8439555
    Abstract: Tourbillon mechanism for a watch having a turning cage mounted in pivoting manner in a first and second cage bearing lodged in fixed elements of the watch; an escapement mobile integral with the cage; and a regulating element in the form of a spiral balance capable of oscillating around a balance staff according to pulses received from the escapement mobile. The balance staff is mounted in pivoting manner in the balance bearings lodged outside the cage. The outer extremity of the spiral hairspring is fastened to the cage through a hairspring stud.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: May 14, 2013
    Assignee: Richemont International SA
    Inventors: Florian Brossard, Hugo Lopez
  • Patent number: 8414184
    Abstract: The invention concerns a timepiece balance (1), with inertia adjustment including a hub (2) pivoting about a balance staff (3) and a felloe (5), connected to said hub (2) by a joining surface (6). It is wherein said felloe (5) is made in a single piece with said joining surface (6) and said hub (2) in a micro-machinable material, or silicon, or quartz, or a compound thereof, or an alloy derived from MEMS technology, or an alloy obtained by the “LIGA” method, and in that it includes at least a first resilient arm (40) including coupling means (41) arranged for cooperating, in various coupling positions, with complementary coupling means (42) comprised in said felloe (5) to form, in the coupling position, a closed loop, the inertia of which relative to said balance staff (3) is variable according to said coupling positions. The invention also concerns a sprung balance or a timepiece incorporating a balance of this type.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: April 9, 2013
    Assignee: Nivarox-FAR
    Inventors: Daniel Mallet, Frédéric Tolle, Philippe Barthoulot, Daniel Vicente, Emmanuel Graf, Philomène Berger, Pierre Cusin
  • Publication number: 20130028056
    Abstract: A balance wheel for timepiece movement, which obeys the following condition: D5·f/I?20?2m3kg?1s?1 where D is the diameter of the balance wheel, f is the frequency and I is the moment of inertia.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 31, 2013
    Applicant: ROLEX S.A.
    Inventors: Raphaël Cettour-Baron, Denis Rudaz
  • Patent number: 8328413
    Abstract: The timepiece includes a chronograph whose hands are driven by a first gear train (4), which in turn drives a first resonator (5) and a watch whose hands are driven by a second gear train (8) independent of the first gear train, wherein the second gear train in turn drives a second resonator (9). The first (4) and second (8) gear trains are driven from a single energy source (10).
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: December 11, 2012
    Assignee: Montres Breguet S.A.
    Inventors: Dominique Lechot, Alain Zaugg
  • Publication number: 20120243388
    Abstract: The timepiece movement comprises an instantaneous actuator controlled by the movement and arranged to actuate a mechanism of the movement by pushing away one element (126) of the mechanism against a return force. The actuator includes a trailing wheel (205) driven by the movement, an eccentric (207) free to rotate coaxially to the trailing wheel and arranged to abut against and therefore be driven by the trailing wheel, a small wheel (219) returned by a spring against the periphery of the eccentric, a pivoting wheel set comprising a projecting portion (213) free to rotate coaxially to the trailing wheel and arranged to abut against and therefore be driven by the eccentric, the projecting portion (213) of the pivoting wheel set being arranged to push said element of a mechanism away in passing against a return force.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 27, 2012
    Applicant: MONTRES BREGUET SA
    Inventor: Eric GOELLER
  • Patent number: 8240910
    Abstract: Mechanical oscillator for a timepiece including a balance (10) and a hairspring (12). The balance (10) and the hairspring (12) are produced from the same material. This material is non-magnetic and has a very low coefficient of thermal expansion.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: August 14, 2012
    Assignee: CompliTime S.A.
    Inventors: Franck Orny, Stephen Forsey, Johnny Girardin
  • Publication number: 20120087214
    Abstract: Oscillating body for mechanical oscillating systems of wristwatches, having several mass weights arranged at regular angle distances around an oscillating body middle axis that respectively can rotate or swivel on the oscillating body on an axis parallel to the oscillating body axis and have a mass center of gravity that is radially offset to their axis.
    Type: Application
    Filed: August 4, 2011
    Publication date: April 12, 2012
    Inventor: Petra Damasko
  • Patent number: 8113707
    Abstract: A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: February 14, 2012
    Assignee: LVMH Swiss Manufactures SA
    Inventor: Hugues Jolidon
  • Patent number: 7963693
    Abstract: The present invention concerns a mechanical oscillator, comprising an oscillating system comprising a balance (1) and its return spring (3). This oscillator also comprises two elastic strips (9, 10) fixed by one end and acting in opposition intermittently by their other end on a connecting organ (8) secured to the oscillating system.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: June 21, 2011
    Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et Developpement
    Inventor: Pierre-Marcel Genequand
  • Patent number: 7950846
    Abstract: The resonator (1) for a timepiece results from coupling a first, low frequency resonator (2) with a second, higher frequency resonator (3). The first resonator (2) has a first balance (4) associated with a first balance spring (5). The second resonator (3) has a second balance (6) associated with a second balance spring (7). A third balance spring is arranged between the first (4) and second (6) balances to couple said first (2) and second (3) resonators.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 31, 2011
    Assignee: The Swatch Group Research and Development Ltd
    Inventors: Thierry Hessler, Kaspar Trumpy, Jean-Luc Helfer, Thierry Conus
  • Patent number: 7946757
    Abstract: The invention concerns a base module comprising a barrel device, a display device, and a power reserve indicator, all the components of the module being placed vertically relative to the flanks of the case, and the adjusting member being arranged visibly and directly accessible on the flank of the case.
    Type: Grant
    Filed: February 3, 2007
    Date of Patent: May 24, 2011
    Assignee: BNB Concept SA
    Inventors: Mathias Buttet, Enrico Barbasini, Michel Navas
  • Publication number: 20110103196
    Abstract: The invention relates to a composite balance (45, 45?) formed in a layer of silicon-based material (21) and including a hub (39, 39?) connected to a felloe (37, 37?) by at least one arm (40, 41, 42, 43). According to the invention, the felloe (37, 37?) includes at least one additional part approximately in the shape of a notched ring (23, 23?) of higher the than the silicon-based material, which increases the inertia of the balance. The invention also relates to a method 1 of manufacturing this type of balance. The invention concerns the field of timepiece movements.
    Type: Application
    Filed: March 13, 2009
    Publication date: May 5, 2011
    Applicant: Nivarox-FAR S.A.
    Inventors: Pierre-André Buhler, Marco Verardo, Thierry Conus, Jean-Philippe Thiébaud, Jean-Bernard Peters, Pierre Cusin
  • Patent number: 7815363
    Abstract: A timepiece movement having at least two regulating members with their escapement and elements for alternately stopping and releasing the operation of the regulating members, such that a single regulating member is thus driven at any one time by means of the energy source of the timepiece.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: October 19, 2010
    Assignee: BNB Concept SA
    Inventors: Mathias Buttet, Enrico Barbasini, Michel Navas
  • Patent number: 7731415
    Abstract: The invention concerns an escapement (1) for a timepiece comprising an anchor (2) articulated on a stem (3) and co-operating with an escapement mobile (4) articulated on an axis (5), said mobile comprising a plurality of teeth (8; 15, 16) uniformly spaced around said mobile, said anchor including an entry pallet (6) and an exit pallet (7) arranged to receive alternately an impulse from one of the teeth borne by the mobile and for acting as rest plane for said tooth. The invention is characterized in that the escapement mobile (4) comprises first and second integral and coaxial wheels (13, 14) including each the same number of teeth (15, 16), in that the entry and exit pallets (6, 7) co-operate respectively with the first and second wheels (13, 14) and in that the peripheral radius (R1) of the first wheel (13) is greater than the peripheral radius (R2) of the second wheel (14).
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: June 8, 2010
    Assignee: Montres Breguet SA
    Inventors: Thierry Conus, Andrés Cabezas Jurin, Kaspar Truempy
  • Patent number: 7682068
    Abstract: The invention relates to mechanical watch oscillators comprising an assembly consisting of a spiral and a temperature compensated balance. The spiral is embodied in a quartz substrate whose section is selected in such a way that the drifts of the spiral and of the balance associated therewith are thermally compensated. The substrate section can be embodied in the form of a section of single or double rotation.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: March 23, 2010
    Assignee: CSEM Centre Suisse d'Electronique et de Microtechniques SA - Recherche et Développement
    Inventor: Claude Bourgeois
  • Publication number: 20100054089
    Abstract: The invention relates to a timepiece component, such as a balance (1), an oscillating mass (12) or a wheel (20), that comprises a structure (2) made according to a micro-manufacturing technique, such as the DRIE technique. The component is characterised in that it further comprises at least one member (3) formed in or at the periphery of the structure (2) and made of a material different from that of the structure (2). This member (3) is typically metal and is formed by electro-forming using a cavity (7) of the structure (2) as a mould.
    Type: Application
    Filed: February 15, 2008
    Publication date: March 4, 2010
    Inventors: Frédéric Maier, Stéphane Von Gunten, Sylvain Jeanneret
  • Publication number: 20100002548
    Abstract: The resonator (1) for a timepiece results from coupling a first, low frequency resonator (2) with a second, higher frequency resonator (3). The first resonator (2) has a first balance (4) associated with a first balance spring (5). The second resonator (3) has a second balance (6) associated with a second balance spring (7). A third balance spring is arranged between the first (4) and second (6) balances to couple said first (2) and second (3) resonators.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 7, 2010
    Applicant: THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD
    Inventors: Thierry HESSLER, Kaspar Trumpy, Jean-Luc Helfer, Thierry Conus
  • Patent number: 7641381
    Abstract: A mechanical oscillator system comprising a balance wheel and a spiral or helicoidal balance spring for use in horological mechanisms or other precision instruments. The balance spring is made of a non-magnetic composite, polymer, carbon or ceramic material, preferably a composite material of carbon fibres in a polymer, carbon or ceramic matrix, and the balance wheel is made from a non-magnetic ceramic. The values of the thermal expansion coefficients for the balance spring and balance wheel are similar, very small and stable over a wide temperature range. The expansion coefficients in the axial sense of the spring and of the balance wheel are of opposite sign and they compensate one another. The density of these materials is smaller than that of the currently used metals. Through this combination of materials it is possible to obtain significant advantages and a higher level of accuracy and stability compared with metal oscillator systems.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: January 5, 2010
    Inventor: Gideon Levingston
  • Patent number: 7527424
    Abstract: The anti-trip device for a timepiece escapement essentially includes a sprung balance (1), this device preventing the angular extension of said balance beyond a normal angle of rotation. The device is characterized in that the arbour (2) fitted to the balance (1) is provided with a pinion (3) meshing with means (4) preventing said balance from rotating beyond said normal angle of rotation, whatever the direction of said rotation.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 5, 2009
    Assignee: Montres Breguet SA
    Inventors: Dominique Lechot, Alain Zaugg, Thierry Conus, Andrés Cabezas Jurin
  • Patent number: 7503688
    Abstract: The balance-spring is structured by photolithography and etching in a strip pre-cut from a quartz monocrystal such that the height h of the coils form, with the crystallographic axis z, an angle ? for adapting the thermal behaviour of the balance-spring to that of the balance, thereby reducing the variation of rate due to temperature variations.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: March 17, 2009
    Assignee: Asulab S.A.
    Inventors: Thierry Hessler, Rudolf Dinger
  • Patent number: 7396154
    Abstract: Regulating element for wristwatch comprising: a balance, a magnetic return member for returning the balance to at least one stable equilibrium position, and an escapement for maintaining the oscillation of the balance around the equilibrium position.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: July 8, 2008
    Assignee: TAG Heuer SA
    Inventor: Thomas Houlon
  • Patent number: 7287900
    Abstract: The timepiece includes means for adjusting the shake of a rotating part or wheel set, in particular a balance one bearing of which is arranged in a bar (4). This bar comprises a base (18) associated with a adjusting screw (34) one end (36) of which rests on the bottom plate. Rotating this adjusting screw varies the distance between the base and the bottom plate (14). The center of the adjusting screw is pierced for the passage of a tightening screw (32) for fixing the bar to the bottom plate. This adjusting screw is arranged in a hole (42) passing through the base (18) and can be rotated through the hole from the top face (46) of the bar in order to adjust the balance shake.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: October 30, 2007
    Assignee: ETA SA Manufacture Horlogére Suisse
    Inventors: Christian Rüfenacht, Ivan Villar
  • Patent number: 7188995
    Abstract: The invention relates to a tourbillon (1) comprising a main bearing (22). A first bearing (18) of the balance axle (19) rotates with the platform (2) of the tourbillon (1), and a second bearing (26) of the balance axle (19) is arranged in a fixed manner.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: March 13, 2007
    Assignee: Wtach -U-License AG
    Inventors: Laurent Besse, Robert E. A. Jansen
  • Patent number: 7059764
    Abstract: In order particularly to put a watch into beat and adjust the isochronism, in addition to the poising screws (2a, 2b) of the balance (1) and the fine adjusting screw (7) pressing on the index tail 20a to alter the orientation of the index (20), the device includes, on the one hand, two screws (19, 29) respectively fixed in the balance cock (10) and in the index (20) to maneuver clamps by means of L-shaped rocking elements (13, 23) to fix the end of the balance spring and define its useful length, and on the other hand, a screw (9) for immobilizing the index (20) in a determined position, these three screws (9, 19, 29) enabling a fine adjustment to be carried out.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: June 13, 2006
    Assignee: Glashütter Uhrenbetrieb GmbH
    Inventors: Hans-Georg Hintze, Mathias Schneider
  • Patent number: 6705601
    Abstract: This self-compensating spiral spring for a mechanical balance-spiral spring oscillator for a watch or clock movement or other precision instrument, made of an Nb—Hf paramagnetic alloy possessing a thermal coefficient of Young's modulus (TCE), such that it enables the following expression to be substantially equal to zero: 1 E ⁢ ⅆ E ⅆ T + 3 ⁢ α s - 2 ⁢ α b where: E: Young's modulus of the spiral spring of the oscillator; 1 E ⁢ ⅆ E ⅆ T = T ⁢   ⁢ C ⁢   ⁢ E
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: March 16, 2004
    Assignee: Rolex S.A.
    Inventors: Jacques Baur, François Paschoud, Patrick Sol
  • Patent number: 6612734
    Abstract: A mechanical timepiece movement has a mainspring serving as a power source, a wheel train rotated by a rotational force produced by the mainspring for driving a display, and an escapement and speed control apparatus for controlling rotation of the wheel train and having a balance with hairspring, an escape wheel and pinion and a pallet fork. A stud holder is rotatably mounted with respect to a central axis of the balance with hairspring and a hairspring holder is attached to the stud holder to undergo movement in a direction orthogonal to the central axis of the balance with hairspring. A hairspring has a central portion fixed to the balance with hairspring and an outer portion fixed to the hairspring holder. The hairspring is adjustable by pivoting the hairspring holder.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: September 2, 2003
    Assignee: Seiko Instruments Inc.
    Inventors: Mamoru Watanabe, Takeshi Tokoro
  • Patent number: 6554468
    Abstract: A mechanical time piece has a mainspring for generating a rotational force and a front train wheel for undergoing rotation in accordance with a rotational force generated by the mainspring. An escapement and speed control apparatus controls rotation of the front train wheel and has a timed annular balance for undergoing reciprocal rotational movement, an escape wheel and pinion for undergoing rotation in accordance with rotation of the front train wheel, and a pallet fork for controlling rotation of the escape wheel and pinion in accordance with rotational movement of the timed annular balance. A switch mechanism outputs an ON signal when a rotational angle of the timed annular balance becomes equal to or larger than a predetermined threshold angle and outputs an OFF signal when the rotational angle of the timed annular balance does not exceed the threshold angle.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: April 29, 2003
    Assignee: Seiko Instruments Inc.
    Inventors: Saburo Manaka, Koichiro Jujo, Takeshi Tokoro