With Stud Patents (Class 368/178)
  • Patent number: 10761484
    Abstract: The invention relates to a balance-spring stud-holder for a mechanical timepiece movement, which comprises a pair of tabs, namely a front tab and a rear tab, jointly defining a notch, the tabs being arranged in such a way that a balance-spring stud can be held in the notch, wherein the rear tab of the balance-spring stud-holder comprises an extension which defines, beyond the notch, a bend forming a retaining abutment for the balance-spring stud after said balance-spring stud has been extracted from the notch.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: September 1, 2020
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Julien Christan, Thierry Conus
  • Patent number: 9785118
    Abstract: The present invention concerns an assembly for holding or supporting a timepiece balance spring including a balance spring stud and a stud-holder, wherein said stud-holder includes: a base comprising an upper face and a lower face extending along a longitudinal axis; characterized in that the base includes a lug of non-constant shape protruding from one of the faces, said assembly further comprising a holding plate including a first opening and a second opening separated by a deformable arm, with the stud engaging in the second opening.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: October 10, 2017
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Julien Christan, Laurent Kaelin, Ivan Villar, Thierry Conus
  • Patent number: 9671756
    Abstract: Timepiece sub-assembly including a balance spring stud arranged to be fastened to a balance cock, and a balance spring comprising an outer coil and an end plate of larger section than that of the outer coil, this stud including a housing arranged, in a first free state of the sub-assembly, to loosely contain the end plate with tangential mobility with respect to the outer coil, and, in a second immobilized state of the sub-assembly, to immobilize the end plate to which the housing is joined by a layer of adhesive covering a change-of-section shoulder and which forms a mechanical seal for the balance spring in a longitudinal direction of the housing, and the end plate includes an eye communicating with the layer in the second immobilized state.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: June 6, 2017
    Assignee: Nivarox-FAR S.A.
    Inventors: Marc Stranczl, Marco Verardo
  • Patent number: 9563175
    Abstract: An assembly for holding or supporting a timepiece balance spring including a base provided with an upper surface and a lower surface on which a balance spring stud and a stud-holder are arranged. The stud-holder secures the stud to an escapement mechanism.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: February 7, 2017
    Assignee: ETA SA Manufacture Horlogere Sueisse
    Inventors: Julien Christan, Laurent Kaelin, Ivan Villar, Thierry Conus
  • Patent number: 9411313
    Abstract: The present invention concerns an assembly for holding or supporting a timepiece balance spring including a balance spring stud and a stud-holder, wherein said stud-holder includes: a base (30, 300) comprising a first stop member (32, 320) extending along a longitudinal axis (L) of said base; means (7) of attaching said stud-holder to a balance-cock (5), characterized in that said stud-holder further includes elastic means (34, 340) provided with a second stop member (36, 360).
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: August 9, 2016
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Julien Christan, Laurent Kaelin, Baptist Wyssbrod
  • Patent number: 9304494
    Abstract: An assembly to hold a balance spring includes a balance spring stud, and a stud-holder. The stud-holder includes a housing to receive the stud, a mechanism to secure the stud including a screw orthogonal to the stud, and a mechanism to secure the stud-holder to an escapement mechanism. The stud includes a surface to orient a balance spring. The screw partially passes through the stud to hold the stud in an indexed position. The stud includes an internal thread cooperating with the screw and forming the orientation surface. The stud-holder includes a bore for the passage of the screw, a bearing face arranged at the entry of said bore, on the opposite side to the housing, for the abutment of a head of the screw.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: April 5, 2016
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Raphael Courvoisier, Christian Ruefenacht
  • Patent number: 9298164
    Abstract: An assembly for holding a balance spring includes a stud including a surface for orienting a balance spring, and a stud-holder. The stud-holder includes a first housing for receiving the balance spring stud, a mechanism to secure the stud including a screw orthogonal to the stud, and a mechanism to secure the stud-holder to an escapement mechanism. The screw partially passes through the stud to hold the stud in an indexed position. The stud includes a second housing for the contact-free passage of the screw. The stud-holder includes on either side of the first housing an internal thread cooperating with the screw and a third bore for the passage of a head of the screw cooperating in abutment with the orientation surface.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: March 29, 2016
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventors: Raphael Courvoisier, Christian Ruefenacht
  • Patent number: 9176475
    Abstract: An assembly for holding or supporting a timepiece balance spring includes a balance spring stud and a stud-holder. The stud-holder includes a device to secure the stud-holder to an escapement mechanism. The balance spring stud includes a lateral bearing surface defining a direction of holding or supporting the balance spring. The stud-holder is in two parts, and includes a rigid structure carrying the securing device, and a strip spring pressed against this rigid structure and including at least one elastic lip defining, with this structure, a chamber for receiving this stud and cooperating with this lateral bearing surface of this stud to hold this stud in an indexed locking position.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: November 3, 2015
    Assignee: ETA SA Manufacture Horlogere Suisse
    Inventor: Raphael Courvoisier
  • Patent number: 9122246
    Abstract: The regulating device includes an inertial balance (7) including a balance staff arranged to be pivotally mounted in the timepiece, a balance bridge (9) and a bearing (11) carried by the balance bridge and arranged to hold one end of the balance staff, a balance spring (1) including an inner end integral with the balance and an outer end (1a) integral with a stud (3; 103), and a mechanism for securing the stud (3; 103) including a housing (17) for receiving the stud and which is formed in a stud holder (5) pivoted on the balance bridge (9), the securing mechanism further including an elastic arm (15; 115) arranged to pivot concentrically to the balance staff between a first position where the elastic arm immobilizes the stud (3; 103) and a second position where the elastic arm is disengaged from the stud to allow the stud to be inserted into or removed from the housing.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: September 1, 2015
    Assignee: Blancpain SA
    Inventor: Edmond Capt
  • Publication number: 20150138934
    Abstract: An assembly for holding or supporting a timepiece balance spring includes a balance spring stud and a stud-holder. The stud-holder includes a device to secure the stud-holder to an escapement mechanism. The balance spring stud includes a lateral bearing surface defining a direction of holding or supporting the balance spring. The stud-holder is in two parts, and includes a rigid structure carrying the securing device, and a strip spring pressed against this rigid structure and including at least one elastic lip defining, with this structure, a chamber for receiving this stud and cooperating with this lateral bearing surface of this stud to hold this stud in an indexed locking position.
    Type: Application
    Filed: October 21, 2014
    Publication date: May 21, 2015
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventor: Raphael COURVOISIER
  • 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
  • Publication number: 20140286143
    Abstract: Mechanism for adjusting the active length of a timepiece balance spring whose outer end is fixed to a balance spring stud secured to a bar, this mechanism including two pins for clamping or touching the outer coil of the balance spring during the operation of this balance spring. These two pins are in a single piece with this bar.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 25, 2014
    Applicant: Nivarox-FAR S.A.
    Inventors: Marc STRANCZL, Thierry HESSLER, Jean-Luc HELFER
  • Patent number: 8393783
    Abstract: Hairspring for a balance wheel/hairspring resonator, comprising n blades, where n?2, which are fastened via at least one of their respective homologous ends and wound in spirals with an angular offset capable of neutralizing the lateral forces liable to be exerted on its central arbor when one of the ends of each blade is moved angularly around said central arbor relative to its other end.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: March 12, 2013
    Assignee: Rolex S.A.
    Inventors: Jerome Daout, Richard Bossart
  • Patent number: 8297833
    Abstract: Assembly for securing the outer end of the balance-spring (1) of a sprung balance device for a timepiece that includes a balance-spring stud holder (2) for housing a balance-spring stud (10), against which the balance-spring (1) can be locked, a screw (11) for locking the stud, for securing the balance-spring (1) by insertion between the stud (10) and a back face (7), the locking screw (11) including a tip (15) in the extension of the threaded body (12) at the opposite end to the screw head, and the stud (10) including a housing (16) in which the tip (15) can be inserted. The corresponding watch and method of securing the outer end of the balance-spring are also provided.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: October 30, 2012
    Assignee: GLASHÜTTER Uhrenbetrieb GmbH
    Inventor: Christian Schmiedchen
  • Patent number: 8002460
    Abstract: Hairspring for a balance wheel/hairspring resonator, comprising n blades, where n?2, which are fastened via at least one of their respective homologous ends and wound in spirals with an angular offset capable of neutralizing the lateral forces liable to be exerted on its central arbor when one of the ends of each blade is moved angularly around said central arbor relative to its other end.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: August 23, 2011
    Assignee: Rolex S.A.
    Inventors: Jérôme Daout, Richard Bossart
  • Patent number: 7648265
    Abstract: A regulatorless oscillating system for a watch includes a spiral balance spring having an inner fastening point attached to a collet which can be connected to a balance staff, an outer fastening point connected to a balance spring stud, and an end region adjacent to the stud. The end region is held so that it can be adjustably positioned in a plane which is perpendicular to the balance staff, thereby decentralizing the balance spring in order to compensate for isochronism errors.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: January 19, 2010
    Assignee: Lange Uhren GmbH
    Inventors: Lutz Grossman, Jörg Gassmann
  • Patent number: 7293913
    Abstract: The balance-spring (1) includes a plurality of coils (3) of which the end (6, 8) of the outer curve (2) is rigidified by deformation in order to define accurately the setting point (7) of said balance-spring, said deformation being able to be achieved by bending the end (6) of the outer curve (2) through 90° in a plane perpendicular to the height of the balance-spring (1) or by folding down through 180° a portion of the end (8) of the outer curve (2) against the inner or outer face of said end (2).
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: November 13, 2007
    Assignee: Nivarox-FAR S.A.
    Inventors: Jean-Bernard Peters, Marco Verardo
  • Patent number: 7237945
    Abstract: An oscillating system for a mechanical timepiece includes an annular balance wheel arranged in a fixed manner coaxially in relation to a rotatably mounted balance staff. A helical spring encloses the balance staff and has its inner end fastened on the balance staff and its outer end fastened on a fastening device. The fastening device has a helical-spring connector with an inner clamping jaw and an outer clamping jaw, the inner clamping jaw being radially inside of the outer clamping jaw in relation to the axis of rotation of the balance staff. The outer end of the helical spring may be clamped firmly between a clamping surface of the inner clamping jaw and a clamping surface of the outer clamping jaw.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: July 3, 2007
    Assignee: Lange Uhren GmbH
    Inventor: Helmut Geyer
  • Patent number: 5907524
    Abstract: A method for manufacturing a balance-spring for a clockwork movement wherein a spring is formed by winding, from a wire or metal strip, said spring including an inner end intended to be fixed to a balance and a outer end zone intended to be fixed to the balance-spring stud and wherein the whole spring is subjected to a first heat treatment subsequent to the winding step of said wire. The method of the invention is characterized in that it further includes an additional step consisting in subjecting at least said outer end zone to a second heat treatment.This method improves in particular the shock resistance of the balance-spring.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: May 25, 1999
    Assignee: Eta Sa Fabriques D'Ebauches
    Inventors: Philippe Marmy, Eric Favre, Christoph Schlencker