Mainspring Patents (Class 368/140)
  • Patent number: 9250610
    Abstract: A split collet in which the contour of the central opening that is intended to receive a balance staff is not circular. The collet is characterized in that the contour (3) of the central opening (2) comprises a limited number of supporting parts (4, 5, 12, 14, 15) intended to co-operate with the balance shaft, said number being greater than two.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 2, 2016
    Assignee: ROLEX S.A.
    Inventor: Jerome Daout
  • Patent number: 9081367
    Abstract: Timepiece including a back and display element, the timepiece being inscribed between first and second mutually parallel reference planes, the first plane being tangential to the back, and the second plane lying on the same side as the display element. The timepiece contains a movement which includes a framework. The framework includes at least two components positioned one on each side of a reference axis perpendicular to the first and second planes, on each of which components there are mounted a balance and an escapement, which together respectively form a platform escapement, each balance being mounted to pivot about an axis of rotation in the corresponding component. The framework further includes at least one support element having at least one bearing surface on which at least one of the platform escapements is positioned so that the axis of rotation is inclined with respect to the reference planes and intersects them.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: July 14, 2015
    Assignee: COMPLITIME SA
    Inventors: Stephen Forsey, Robert Greubel, Francois Trifoni
  • Patent number: 8974112
    Abstract: The invention relates to a barrel. According to the invention, the barrel further includes a device for increasing the torque of said at least one spring including additional elastic energy accumulating means provided in addition to the spiral shape of said at least one spring, said elastic means being added to said at least one spring so that the barrel torque is personalized according to the winding tension of said at least one spring.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: March 10, 2015
    Assignee: Nivarox-FAR S.A.
    Inventor: Christian Charbon
  • Patent number: 8976629
    Abstract: Clockwork movement for a wristwatch, comprising a kinematic chain including at least one belt (20, 21) for transmitting the movements and/or couples between at least two pulleys. The pulleys are held on the bottom plate or the bridges by ball bearings (151, 161, 171, 181). The movement is rewound by means of linear oscillating mass (14) charging four barrels (15, 16, 17, 18) through a couple distributor (40). The barrels are non-parallel to one another. The back cover is covered by inclined glasses (110, 120, 130) allowing the barrels, the linear oscillating mass and at least certain pulleys to be seen. The regulating organ (51) is removable.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: March 10, 2015
    Assignee: LVMH Swiss Manufactures SA
    Inventor: Jean-Francois Ruchonnet
  • Patent number: 8950552
    Abstract: A barrel including a box for receiving a pivot arbour and at least one spring, wherein the at least one spiral spring is mounted between an internal wall of the box and an external wall of the pivot arbour , and can be wound to supply mechanical energy. The barrel further includes a device for increasing torque of the at least one spring including supplementary energy accumulation curves made on the spring so that the barrel torque is customized according to a winding tension of the at least one spring. The barrel can be a timepiece barrel.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 10, 2015
    Assignee: Nivarox-FAR S.A.
    Inventor: Christian Charbon
  • Patent number: 8894275
    Abstract: Timepiece barrel for pivotal assembly between a bottom plate and a bridge and including at least one spring housed between a pivoting drum and a ratchet and hooked between this drum at the outer end thereof and an arbour at the inner end thereof, this arbour pivoting integrally with this ratchet about a pivot axis. This barrel includes a single-piece sub-assembly, coaxial with this arbour and grouping together around a hub, this arbour and this ratchet in immediate proximity to this bottom plate, and which is pivoted on an upper shoulder in a bore of this drum on an end pipe whose outer shoulder pivots in a bore of this bridge or of a jewel comprised in this bridge.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: November 25, 2014
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Laurent Kaelin, Arthur Queval, Martin Vautherot
  • Patent number: 8891339
    Abstract: Timepiece gear train device (1) of reduced height with a large power reserve, driving display means (4) including a cannon-pinion (5) and an hour wheel (6), which are driven about a main pivot axis (AP), secant to a barrel (3), by a motion work (7) and including a driving wheel (8), which pivots about a secondary pivot axis (AS) external to said barrel (3) and is friction coupled to said motion work (7) on a friction surface (9) coaxial to said secondary pivot axis (AS). Said driving wheel (8) includes a driving cannon pinion (83) pivoting about a wheel body (80) along said secondary pivot axis (AS) and coupled by a friction spring (84) to a shoulder (85) of said wheel body (80) forming said friction surface (9), said driving cannon-pinion (83) cooperating with a minute wheel (14) pivoting about a minute axis (AM).
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: November 18, 2014
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Laurent Kaelin, Julien Moulin
  • Patent number: 8858068
    Abstract: The watch movement comprises a motor barrel (102), a fusee (104) having a main surface that has a spiral groove (148), means (192) for winding the movement arranged to drive the fusee, a going train (200) arranged to be driven by the fusee, and a wire (106) extended between the fusee and the barrel. The watch movement additionally comprises a fixed guide (155; 255) and a winding roller (157; 257) mounted to slide on the fixed guide, wherein the winding roller is arranged to guide the wire when the fusee turns and to simultaneously assure the insertion of the wire into the groove (148) and its removal therefrom.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: October 14, 2014
    Assignee: Montres Breguet SA
    Inventors: Eric Goeller, Sylvain Marechal
  • Publication number: 20140160902
    Abstract: The invention relates to a system of assembling a member, made of a first material, in the aperture of a part made of a second material having no plastic domain, using an intermediate portion made of a third material, mounted between said member and said part, According to the invention, the intermediate portion is accommodated against a shoulder of the part and is laterally locked in a resilient manner by at least one resilient locking device of the part to secure together the unit comprising the member-intermediate portion-part. The invention concerns the field of timepieces.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: Nivarox-FAR S.A.
    Inventors: Pierre CUSIN, Marc Stranczl, Daniel Mallet, Emmanuel Graf
  • Publication number: 20140064043
    Abstract: A method for producing a timepiece spring includes a step for producing, by casting, a metallic glass raw material constituted of a metallic glass; a step for heating the metallic glass raw material to achieve a superplastic state; and a step for rolling the metallic glass raw material in a superplastic state to produce a sheet material. A timepiece spring is characterized by being obtained by the method for producing a timepiece spring.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kazuhiro TSUCHIYA, Masao TAKEUCHI, Masatoshi MOTEKI, Shoichi NAGAO
  • Publication number: 20140056113
    Abstract: A mechanical timepiece movement, including a spiral spring, a barrel, the spiral spring accommodated in the barrel as an energy storage, the barrel transmitting energy of the spiral spring by a gear train to an oscillator, the oscillator including a balance as a regulating device, and a mechanism configured to reduce a torque generated by the barrel to reduce loss of energy stored in the spiral spring.
    Type: Application
    Filed: August 22, 2013
    Publication date: February 27, 2014
    Applicant: Audemars Piguet (Renaud et Papi) SA
    Inventors: Sylvain CORNIBÉ, Eddy VALLADON
  • Publication number: 20140003203
    Abstract: The invention relates to a mainspring (1) including a metal strip (3). According to the invention, the metal is austenitic steel (5) in order to limit sensitivity to magnetic fields and at least the outer surface of the strip (3) is hardened compared to the rest of the strip to a predetermined depth (7) in order to harden the strip (3) in the main areas of stress while maintaining a low modulus of elasticity.
    Type: Application
    Filed: June 24, 2013
    Publication date: January 2, 2014
    Inventors: Christian CHARBON, Maxime Govaerts, Cedric Von Gruenigen
  • Patent number: 8573832
    Abstract: Barrel for a self-winding timepiece including a drum of axis AA provided with an internal lateral wall having friction surfaces alternating with locking structures forming salient or inward edges at the boundary of the friction surfaces and a mainspring forming a winding including an outer coil, which is friction coupled to said internal lateral wall and free to slip against said internal lateral wall in the event of overwinding of the mainspring, characterized in that said friction surfaces are demarcated, downstream relative to the direction in which said outer coil slips, by a rounded salient edge or an inward edge.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: November 5, 2013
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventor: Serge Nicoud
  • Patent number: 8498180
    Abstract: Clockwork movement for a wristwatch, comprising a kinematic chain including at least one belt (20, 21) for transmitting the movements and/or couples between at least two pulleys. The pulleys are held on the bottom plate or the bridges by ball bearings (151, 161, 171, 181). The movement is rewound by means of linear oscillating mass (14) charging four barrels (15, 16, 17, 18) through a couple distributor (40). The barrels are non-parallel to one another. The back cover is covered by inclined glasses (110, 120, 130) allowing the barrels, the linear oscillating mass and at least certain pulleys to be seen. The regulating organ (51) is removable.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: July 30, 2013
    Assignee: LVMH Swiss Manufactures SA
    Inventor: Jean-Francois Ruchonnet
  • Patent number: 8430559
    Abstract: A driving member for a timepiece movement includes a shaft, and a drum and a rotating member both mounted on the shaft. The drum and the rotating member are able to rotate with respect to each other and include teeth on their periphery. First and second superposed spiral springs have outer ends fixed to the drum and to the rotating member respectively and inner ends connected to each other to connect the springs in series. The drum and the rotating member fit together at least in the area of the peripheral wall of the drum so as to together form a closed housing containing the springs.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: April 30, 2013
    Assignee: Patek Philippe SA Geneve
    Inventors: Jean-Pierre Musy, Frederic Maier
  • Publication number: 20130083633
    Abstract: A barrel spring (10) for a mechanism driven by a mainspring, in particular for a timepiece, includes a unitary ribbon of metallic glass. The object is to integrate at least one additional function to the spring function, implemented by a functional portion integrated in the spring.
    Type: Application
    Filed: May 23, 2011
    Publication date: April 4, 2013
    Inventors: Pascal Winkler, Yvan Teres
  • Patent number: 8379493
    Abstract: A driving member for a timepiece movement comprises two superimposed coaxial barrels (1, 11) coupled in series, each barrel including a spring provided in a cylindrical housing rotatingly mounted on a common shaft (20). The respective housings (2, 12) of the barrels are positioned opposite each other and do not include a lid, and the springs (7, 17) are separated only by a separation washer (26) or a gap. This arrangement can be used for increasing the height (H) of the springs, and thereby the amount of energy and the power reserve of the watch for an identical global volume of the driving member, or for reducing the total height of the driving member. Such a driving member is particularly intended for watches with a high power reserve.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: February 19, 2013
    Assignee: Montres Jaquet Droz SA
    Inventor: Olivier Mertenat
  • Patent number: 8356929
    Abstract: The timepiece movement (1) includes a karussel (4) whose platform carries an escape wheel that cooperates with a balance (7). The platform is driven from the time display mechanism associated with a time-setting mechanism (32). The escape wheel is driven directly from the gear train. In addition to compensating for differences in rate due to gravity, the karussel of the invention proposes a new, complementary role: that of time indicator.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: January 22, 2013
    Assignee: Montres Breguet S.A.
    Inventors: Alain Zaugg, Jan Pittet
  • Patent number: 8353623
    Abstract: The timepiece movement includes a barrel, an escapement that has an escape wheel and pinion (27, 25), a balance (19) and a gear train for transmitting energy stored in the barrel to the escape wheel. This gear train has an intermediary wheel (23), kinematically connected to the barrel by a first part of the gear train, and kinematically connected to the escape wheel (27) by a second part of the gear train, the second part of the gear train, and the escapement and balance are mounted in a rotating carriage (16) kinematically connected to the movement and arranged for rotating coaxially about the intermediary wheel (23) at a different speed from the speed of the intermediary wheel. The timepiece movement is characterized in that it imposes a speed of one revolution per minute on the carriage (16).
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: January 15, 2013
    Assignee: Blancpain S.A.
    Inventors: Vincent Calabrese, Edmond Capt, Sébastien Graf, Marco Rochat
  • Patent number: 8348496
    Abstract: Mainspring for a mechanism driven by a motor spring, especially for a timepiece, formed from a ribbon of metallic glass material. This ribbon is monolithic and has a thickness of greater than 50 ?m.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: January 8, 2013
    Assignee: Rolex S.A.
    Inventors: Dominique Gritti, Thomas Gyger, Vincent Von Niederhausern
  • Patent number: 8339904
    Abstract: The micro-mechanical part, for example a horological movement part, includes a silicon core (1) all or part of the surface (3) of which is coated with a thick amorphous material (2). This material is preferably silicon dioxide and has a thickness which is five times greater than the thickness of native silicon dioxide.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: December 25, 2012
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: René Rappo, Marc Lippuner, Lionel Paratte, Thierry Conus
  • 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
  • Patent number: 8308345
    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: November 13, 2012
    Assignee: LVMH Swiss Manufactures SA
    Inventor: Hugues Jolidon
  • Publication number: 20120281510
    Abstract: The invention relates to a method for making a spring for a timepiece that comprises at least one monobloc ribbon of metal glass including at least one curvature. The method is characterized in that said method comprises the step of shaping by means of plastic-deformation said monobloc ribbon in order to obtain at least a portion of said curvature.
    Type: Application
    Filed: December 9, 2010
    Publication date: November 8, 2012
    Applicant: ROLEX S.A.
    Inventors: Thomas Gyger, Vincent Von Niederhäusern
  • Patent number: 8182138
    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: May 22, 2012
    Assignee: LVMH Swiss Manufactures SA
    Inventor: Hughes Jolidon
  • Publication number: 20110222376
    Abstract: A driving member for a timepiece movement includes a shaft, and a drum and a rotating member both mounted on the shaft. The drum and the rotating member are able to rotate with respect to each other and include teeth on their periphery. First and second superposed spiral springs have outer ends fixed to the drum and to the rotating member respectively and inner ends connected to each other to connect the springs in series. The drum and the rotating member fit together at least in the area of the peripheral wall of the drum so as to together form a closed housing containing the springs.
    Type: Application
    Filed: September 25, 2009
    Publication date: September 15, 2011
    Applicant: PATEK PHILIPPE SA GENEVE
    Inventors: Jean-Pierre Musy, Frederic Maier
  • 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
  • Patent number: 7905655
    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: July 27, 2004
    Date of Patent: March 15, 2011
    Assignee: LVMH Swiss Manufactures SA
    Inventor: Hugues Jolidon
  • Patent number: 7832924
    Abstract: A timepiece having a mainspring, an output wheel that is rotated by torque output from the mainspring, a lever that pivots synchronously to the output wheel, and a pressure member that pushes the lever. The pressure member pushed the lever so that the output torque of the output wheel increases as the mainspring unwinds.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: November 16, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Eiichi Nagasaka
  • Patent number: 7780342
    Abstract: A spring device having an inside-end wheel that moves in conjunction with the inside end of a mainspring; an outside-end wheel that moves in conjunction with the outside end of the mainspring; a torque return unit that transfers part of the output torque of the mainspring from one to the other of the inside-end wheel and outside-end wheel; a duration time indicating unit that operates in conjunction with both the inside-end wheel and outside-end wheel and indicates the number of winds in the mainspring; and a torque transfer clutch unit that disengages torque transfer between the inside-end wheel and outside-end wheel by means of the torque return unit when the mainspring unwinds and the duration time indicating unit indicates a predetermined reference number of winds.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: August 24, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Takahashi, Nobuyuki Hirose, Masaaki Maejima, Masatoshi Moteki
  • Patent number: 7753581
    Abstract: The balance spring is made from a photostructurable glass plate by UV irradiation, thermal treatment and etching, said glass having a Young's modulus thermal coefficient CTE0. The value CTE0 of selected zones of the balance spring are altered to a value CTEi by UV irradiation through one or several masks, possibly completed by a thermal treatment.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: July 13, 2010
    Assignee: The Swatch Group Research and Development Ltd
    Inventors: Thierry Hessler, Joachim Grupp
  • Patent number: 7697376
    Abstract: Clockwork movement for a wristwatch, comprising a kinematic chain including at least one belt (20, 21) for transmitting the movements and/or couples between at least two pulleys. The pulleys are held on the bottom plate or the bridges by ball bearings (151, 161, 171, 181). The movement is rewound by means of linear oscillating mass (14) charging four barrels (15, 16, 17, 18) through a couple distributor (40). The barrels are non-parallel to one another. The back cover is covered by inclined glasses (110, 120, 130) allowing the barrels, the linear oscillating mass and at least certain pulleys to be seen. The regulating organ (51) is removable.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: April 13, 2010
    Assignee: Tag Heuer SA
    Inventor: Jean-Francois Ruchonnet
  • Patent number: 7684285
    Abstract: The invention concerns a power reserve indicator mechanism for a timepiece of the type comprising: a mainspring (14), a power reserve indicator moving between two end positions, a differential gear (18), and an intermediate wheel set (32) including first and second parts respectively kinematically coupled to the differential gear (18) and to the indicator and a coupling member coupling said parts, which rotate conjointly while the winding of the mainspring (14) is comprised between its end positions, Said coupling member includes a friction mechanism arranged such that the first part can move with friction in relation to the second when the indicator has reached its first end position, and an elastic element arranged so as to be able to be cocked when the indicator has reached its second end position, by the movement of the first part with reference to the second part.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: March 23, 2010
    Assignee: Vaucher Manufacture Fleurier S.A.
    Inventor: Sébastien Jeanneret
  • Publication number: 20090303842
    Abstract: Mainspring for a mechanism driven by a motor spring, especially for a timepiece, formed from a ribbon of metallic glass material. This ribbon is monolithic and has a thickness of greater than 50 ?m.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Applicant: ROLEX S.A
    Inventors: Dominiqur Gritti, Thomas Gyger, Vincent Von Niederhausern
  • Publication number: 20090161495
    Abstract: The invention concerns a power reserve indicator mechanism for a timepiece of the type comprising: a mainspring (14), a power reserve indicator moving between two end positions, a differential gear (18), and an intermediate wheel set (32) including first and second parts respectively kinematically coupled to the differential gear (18) and to the indicator and a coupling member coupling said parts, which rotate conjointly while the winding of the mainspring (14) is comprised between its end positions, Said coupling member includes a friction mechanism arranged such that the first part can move with friction in relation to the second when the indicator has reached its first end position, and an elastic element arranged so as to be able to be cocked when the indicator has reached its second end position, by the movement of the first part with reference to the second part.
    Type: Application
    Filed: January 7, 2005
    Publication date: June 25, 2009
    Inventor: Sébastien Jeanneret
  • Publication number: 20090116343
    Abstract: A balance spring comprising a flat spiral coil and a non-elastic inner attachment part formed by laser beam cutting. The spring has an outer attachment plate in the plane of the coil formed with a channel which receives and protects the outer winding of the coil. The outer attachment plate has a curved attachment edge which allows the location of the oscillator dead point to be varied without affecting spring frequency.
    Type: Application
    Filed: May 4, 2006
    Publication date: May 7, 2009
    Inventor: Gideon Levingston
  • Patent number: 7527423
    Abstract: In order to improve the isochronisms of the mechanical movement of a watch, the regulating members comprise at least two tourbillions mounted on a common rotating support driven by one or several barrel springs, such that the tourbillions make an orbital movement around the axis of rotation of the support. The tourbillions are connected by respective going trains to a differential gear, one of whose elements is immobilised by friction.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: May 5, 2009
    Assignee: Montres Breguet SA
    Inventors: Jean-François Ruchonnet, Alain Zaugg
  • Publication number: 20090067296
    Abstract: A timepiece comprising a main energy storing device, a gear train coupled to the main energy storing device, a tensioning element coupled to the gear train, the tensioning element configured to be driven about a tensioning axis in cyclic steps, a tensioning control system configured to control the tensioning element, a storage hairspring having a first end and a second end, the first end connected to the tensioning element, a wheel connected to the second end of the storage hairspring, a clockwork movement rotatably driven by the wheel, an escapement coupled to the clockwork movement and a device configured to be switched in a stepwise manner and driven rotatably in cyclic steps by an element of the gear train.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 12, 2009
    Applicant: Lange Uhren GmbH
    Inventor: Jens SCHNEIDER
  • Publication number: 20090016173
    Abstract: The balance spring is made from a photostructurable glass plate by UV irradiation, thermal treatment and etching, said glass having a Young's modulus thermal coefficient CTE0. The value CTE0 of selected zones of the balance spring are altered to a value CTEi by UV irradiation through one or several masks, possibly completed by a thermal treatment.
    Type: Application
    Filed: November 13, 2006
    Publication date: January 15, 2009
    Applicant: THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD
    Inventors: Thierry Hessler, Joachim Grupp
  • Patent number: 7452123
    Abstract: A watch movement with a mechanical source of energy is provided. In one implementation, the watch movement comprises a frame intended to support moving parts and defining upper and lower faces. The distance between the upper and lower faces may define a movement thickness. Further, springs may be provided for storing the energy, each being housed in a barrel. At least three barrels may be provided, the first and the second of which are superposed and the third of which is placed laterally to the other two and within their thickness.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: November 18, 2008
    Assignee: Richemont International S.A.
    Inventors: Johnny Frédéric Girardin, Stephen Edward Methuen Forsey
  • Publication number: 20080205199
    Abstract: To provide a residual wound quantity display mechanism of a timepiece, in which it is possible to change a way of a display without changing a basic structure, and a timepiece with the mechanism concerned.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 28, 2008
    Inventor: Mamoru Watanabe
  • Patent number: 7357568
    Abstract: A running reserve indicator is provided for a mechanical clockwork provided with a main barrel for driving a gear-train and at least a second barrel for driving a gear-train allocated to an auxiliary function which is performed during a determined period. With the indicator, the running reserve displayed with the aid of a hand and a dial is always equal to the running reserve of the barrel having the smallest reserve.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: April 15, 2008
    Assignee: Eterna SA
    Inventors: Paul Gerber, Willy Meier
  • Patent number: 7350966
    Abstract: The invention concerns a watch with a mechanical movement of the type comprising at least two regulating systems (SR1, SR2) each including a mechanical oscillator and an escapement. The movement includes as many sub-assemblies (SE1, SE2) as there are regulating systems, each of said sub-assemblies including a regulating system (SR1, SR2), a barrel (B1, B2) and a going train transmitting energy from the barrel to the regulating system inside the sub-assembly. A differential display gear (Da) connects the barrel or the going train of each sub-assembly to the display (A) to average out the rate of the two sub-assemblies. In a preferred embodiment, the two sub-assemblies are mounted on a common rotating support (5) and their regulating systems are tourbillons which make an orbital movement about the center of the watch dial.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: April 1, 2008
    Assignee: Montres Breguet SA
    Inventor: Alain Zaugg
  • Patent number: 7318669
    Abstract: A spring-barrel arrangement for a timepiece includes a fixed plate-like component with a circular cutout. A spring barrel is rotatably mounted in said circular cutout by its corresponding circular outer contour. A barrel core is coaxially rotatably mounted relative to the spring barrel and is enclosed by a helical tension spring. An inner end of the spring is connected to the barrel core and its outer end connected to the spring barrel. A crown wheel with a toothed ring is fixed to the spring barrel and a first wheel of a wheel train of the timepiece is fixed to the barrel core. The circular cutout is formed through the plate-like component and the spring barrel has two supporting regions which extend radially beyond the diameter of the circular cutout and are each in abutment against one of the mutually opposite side surfaces of the plate-like component.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: January 15, 2008
    Assignee: Lange Uhren GmbH
    Inventor: Jens Schneider
  • Patent number: 7316504
    Abstract: The invention concerns a timepiece with mainspring of the so-called fly tourbillon type, the tourbillon having a balance bridge (2) forming a cage with a collet (1) and a single protruding ball bearing (5) supporting said so-called fly tourbillon assembly. Said so-called fly tourbillon assembly is visible on the dial side (15) and is designed as an independent tourbillon module. Said tourbillon module is separable from the clockwork (13) by being detached on the rear side of the clockwork (13) and by being removed on that same side.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: January 8, 2008
    Assignee: Watch-U-License AG
    Inventors: Elmar Mock, Begona Guerry, Elio Mariotto
  • Patent number: 7307922
    Abstract: A timepiece having basic timepiece pointers, chronograph information pointers, a mechanical energy storage section, a train wheel, a power generator, and a control section. The basic timepiece pointers are rotated to indicate the standard time. The chronograph information pointers are rotated to indicate chronograph information. The mechanical energy storage section includes a mainspring. The train wheel is disposed between the mechanical energy storage section and the pointers, and transmits energy from the mechanical energy storage section to the pointers. The power generator has a rotating rotor connected to the train wheel, and generates electric power upon receiving the energy from the mechanical energy storage section. The control section is energized by the electric power produced by the power generator, and controls the rotation cycle of the rotor.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: December 11, 2007
    Assignee: Seiko Epson Corporation
    Inventor: Eiichi Hiraya
  • Patent number: 7192181
    Abstract: The invention concerns a timepiece component comprising a watch movement provided with a main barrel acting as power source for a timekeeping device of the watch movement and an auxiliary barrel designed to supply mechanical power to an additional device, and mechanical control means capable of being manually actuated to trigger said additional device, characterised in that said control means are arranged to simultaneously trigger the additional device and wind the auxiliary barrel.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: March 20, 2007
    Assignee: Glashütter Uhrenbetrieb GmbH
    Inventor: Christian Schmiedchen
  • Patent number: 7170825
    Abstract: To provide a power reserve display mechanism having a mainspring remaining amount display showing a novel behavior and a mechanical timepiece having the same. A power reserve display mechanism of a mechanical timepiece includes a displacement conversion mechanism having a first rotation input portion coupled to a ratchet wheel and rotated in accordance with rotation of the ratchet wheel and a second rotation input portion coupled to a barrel wheel and rotated in accordance with rotation of the barrel wheel as well as an output portion moved linearly in one direction in accordance with rotation of the first rotation input portion and moved linearly in other direction in accordance with rotation of the second rotation input portion, and mainspring accumulating remaining amount display means provided at the output portion of the displacement conversion mechanism for displaying a mainspring accumulating remaining amount by a position along a linear line.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: January 30, 2007
    Assignee: Seiko Instruments Inc.
    Inventor: Takashi Takahashi
  • Patent number: 7018092
    Abstract: A spiral spring for use in connection with horology instruments is disclosed which includes a spiral spring and a collet which are produced in one piece without molecular discontinuity.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: March 28, 2006
    Assignee: Franck Muller Watchland S.A.
    Inventor: Francesco Müller
  • Patent number: 6863435
    Abstract: A mainspring used as a power source for a driving mechanism is made of an amorphous metal sheet, and has an S-shaped free-exploded shape. The curvature changing point, where the curving direction of the free-exploded shape changes is formed on the inner end side of a middle point between the inner end on the winding side and the outer end serving as the other end of the inner end. Because of the high tensile stress and a low Young's modulus, the amorphous metal permits increase in mechanical energy stored in the mainspring.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: March 8, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Masatoshi Moteki, Fumio Takagi, Tatsuo Hara