Mechanical Time Base Patents (Class 368/139)
  • Publication number: 20150023142
    Abstract: A control device for a timepiece, the device including a primary crown adapted to be rotated and pulled, having at least two axial positions, and also including a secondary crown arranged coaxially with respect to the primary crown, the primary crown including a crown head and a control rod fixed rigidly to the crown head and adapted to be coupled to or decoupled from a winding rod of a movement of the timepiece in order to control functions of the timepiece, and the secondary crown including a crown body. The control device distinguishes in that the secondary crown is adapted be rotated and pulled, has at least two axial positions, and includes a kinematic link adapted to control at least one additional function of the timepiece, the primary crown and secondary crown being actuatable independently of one another. The invention also includes a timepiece having such a control device.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 22, 2015
    Inventors: Julien BREUILLOT, Marc HODEBOURG
  • Patent number: 8501584
    Abstract: The process comprises the following steps: a) a first element (3) or a plurality of said first elements (3) is/are machined in a first silicon wafer (1) keeping said elements (3) joined together via material bridges (5); b) step a) is repeated with a second silicon wafer (2) in order to machine a second element (4), differing in shape from that of the first element (3), or a plurality of said second elements (4); c) the first and second elements (3, 4) or the first and second wafers (1, 2) are applied, face to face, with the aid of positioning means (6, 7); d) the assembly formed in step c) undergoes oxidation; and e) the parts (10) are separated form the wafers (1, 2). Micromechanical timepiece parts obtained according to the process.
    Type: Grant
    Filed: November 1, 2007
    Date of Patent: August 6, 2013
    Assignee: ETA SA Manufacture Horlogère Suisse
    Inventors: Philippe Marmy, Jean-Luc Helfer, Thierry Conus
  • Publication number: 20130148481
    Abstract: Mechanical modular unit (100) with mechanical timepiece functional modules (1) each derived from a sub-assembly (1A) carrying components for a particular timepiece function of transforming a movement between input (3) and output (4) wheel sets. Said sub-assembly (1A) comprises adjustment components which are irreversibly secured after said timepiece function has been adjusted and function checked on the test bench, and said pre-adjusted module (1), derived from the transformation of said sub-assembly (1A) by the irreversible securing of said adjustment components thereof, includes at least one bearing surface (5) and a locating means (6) for the recognition and positioning of said module (1) relative to another element of said mechanical modular unit (100) or relative to a plate, by the abutment of said bearing surface (5) on a complementary bearing surface comprised in said other element or said plate.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 13, 2013
    Applicant: ETA SA Manufacture Horlogere Suisse
    Inventor: ETA SA Manufacture Horlogere Suisse
  • Publication number: 20100128573
    Abstract: Mechanical clockwork assembly, comprising a drive mechanism, a mechanical control device comprising a mechanical oscillator and a first transmission device for providing a transmission between the drive mechanism and the mechanical oscillator, an electric generator and a second transmission device for providing a transmission between the drive mechanism and the generator, wherein the generator is spaced apart from the mechanical oscillator. In one embodiment the clockwork assembly comprises a sensor for determining a timing of the mechanical oscillator, an actuator for adapting a timing of the mechanical oscillator, an electronic control device connected to the sensor and the actuator, wherein the control device comprises an entry for a reference signal for controlling the timing of the mechanical oscillator on the basis of the reference signal, and wherein at least the control device is connected to the generator for supplying the control device with electric energy from the generator.
    Type: Application
    Filed: July 5, 2007
    Publication date: May 27, 2010
    Inventors: Bernardus Johannes Meijer, Petrus Matheus Josephus Knapen
  • Publication number: 20090046540
    Abstract: An automatic timing control device case which is used for accommodating a timing control rotation shaft and a plurality of switches. A motor is disposed on the case for driving a gear set connected to the timing control rotation shaft to rotate, thereby controlling on or off of the switches through the timing control rotation shaft. The automatic timing control device case includes a body and a gear box. The body has an accommodation space for accommodating the timing control rotation shaft and the plurality of switches. The gear box is integrally formed in the body for accommodating the gear set. The gear box has at least one through-hole communicating the gear box and the accommodation space, such that the gear set is connected to and drives the timing control rotation shaft.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 19, 2009
    Applicant: Norm Pacific Automation Corp.
    Inventors: Keng-Jen LAI, Ming-Teng Chu, Shih-Chi Chan
  • Patent number: 6126308
    Abstract: Chain wheel assembly unit for weight movement of a clock movement and/or of a striking train of a clock comprises a chain wheel (22), which is arranged on a shaft (1) between two coaxial profiled disks (20, 21), is in rotary connection with a drive gear (7) axially fixed on the shaft (1) via a directional locking mechanism in the direction of drive and is pressed with its two profiled disks (20, 21) against the drive gear (7) by a spring in the axial direction. The chain wheel (22) and the first profiled disk (20) located between it and the drive gear (7) are in connection with one another, rotating in unison, at least in the direction of drive, through a coupling element (14). This profiled disk (20) has at least one axially movable flexible tongue (31 through 34), which engages a support surface ring (9) of the drive gear. The second profiled disk (21) is designed as a mute disk and holds together the parts which are otherwise seated loosely on the shaft (1).
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: October 3, 2000
    Assignee: Keininger Uhrenfabrik GmbH
    Inventors: Rolf Hepfer, Jurgen Runzler
  • Patent number: 4868801
    Abstract: The invention relates to a spring winding gearing for the drive assembly of a device with a drive shaft biased by a coil spring and a drive controlling device acting on the drive shaft via at least one intermediate transmission. A first toothed wheel is firmly attached to the drive shaft, a pivotable locking pawl is provided for the first toothed wheel, which locking pawl is held in the disengaged position by a movable support member, and a second toothed wheel is arranged at the support member, which second toothed wheel cooperates with the first toothed wheel and, upon increased rotational speed of the first toothed which second toothed wheel cooperates with the first toothed wheel for releasing the locking pawl. In this manner, racing of the drive shaft in case of a broken axle and the like is prevented, and in order to realize malfunction in due time, the safety mechanism against racing can be checked manually.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: September 19, 1989
    Assignee: B. Braun Melsungen AG
    Inventor: Michael Dold
  • Patent number: 4773050
    Abstract: A viscous fluid timer is constructed with a cylindrical cavity formed by a housing that supports an axially aligned rotor unit having a rotor on a shaft within a first chamber filled with a viscous fluid. The first chamber communicates with a second chamber having a shaft seal through which the rotor shaft projects, the rotor shaft having a torsional connection to a spring means for rotating the rotor unit within the chamber, the first chamber being filled with a highly viscous fluid which impedes the rotation of the rotor.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: September 20, 1988
    Inventor: Robert Munson
  • Patent number: 4363553
    Abstract: A watch mechanism incorporating two barrels each containing a spring. The springs contained in each barrel are positively connected in series to each other via a gear mechanism or a common arbor.The considerable energy available makes it possible to maintain the movement of a high frequency spring balance oscillator. The barrel rotates rapidly to drive the first pinion of the train of gears with an angular velocity approximately double relative to the normal angular velocities; the torque is approximately half (600 gr.mm) that of conventional-sized watch mechanism of comparable performance.The barrels may be mounted coaxially or in the same plane and the mechanism can be arranged to be wound manually or automatically.
    Type: Grant
    Filed: October 24, 1979
    Date of Patent: December 14, 1982
    Assignee: Compagnie des Montres Longines Francillon S.A.
    Inventors: Michel Thomi, Raymond Studer
  • Patent number: 4253176
    Abstract: A gear train mechanism for a wristwatch provides a thinner watch, the gear train comprising a frame plate, a dial, a plate interposed between the dial and the frame plate, and a shaft rotatably supporting a center wheel and pinion. The shaft is attached to the frame plate. Rubbing and misalignment of the hands is prevented by aligning their rotating support members for an extended longitudinal distance on the shaft. This is accomplished by the gear train of this invention despite a reduction in the thickness of the watch. Hour and minute hands or hour, minute, and second hands are provided in alternative embodiments.
    Type: Grant
    Filed: December 27, 1978
    Date of Patent: February 24, 1981
    Assignee: Kabushiki Kaisha Suwa Seikosha
    Inventor: Toshimasa Ikegami