Balance Patents (Class 368/325)
  • Patent number: 9377760
    Abstract: The invention relates to a pivot pin for a timepiece movement including at least one pivot at at least one of the ends thereof, characterized in that said at least one pivot is formed of a composite material having a metallic matrix including at least one metal selected from among nickel, titanium, chromium, zirconium, silver, gold, platinum, silicon, molybdenum, aluminum or an alloy of the above metals, said matrix being charged with hard particles selected from among WC, TiC, TaC, TiN, TiCN, Al2O3, ZrO2, Cr2O3, SiC, MoSi2, Al N or a combination thereof, so as to limit the sensitivity of the pin to magnetic fields. The invention concerns the field of timepiece movements.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: June 28, 2016
    Assignee: Omega S.A.
    Inventors: Cedric Von Gruenigen, Christian Charbon, Marco Verardo
  • Patent number: 8636405
    Abstract: The invention relates to a system (9) for securing a part (7) made of a material with no usable plastic domain, including a securing device (11) on an arbour (3) passing through a hole (8) in said part. According to the invention, the securing device (11) includes a recess (4) that communicates with the hole (8) in said part and securing means (6) attached to the arbour (3) and at least partially matching the shape of the recess (4), so as to make the movement of the part (7) integral with that of the arbour (3). The invention concerns the field of timepiece manufacture.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: January 28, 2014
    Assignee: Nivarox-FAR S.A.
    Inventor: Pierre Cusin
  • Patent number: 4308605
    Abstract: A balance wheel assembly for clock works, and the like, the assembly including a base plate, lower and upper pivot blocks mounted on the base plate, the pivot blocks having opposed conical recesses therein, a vertical shaft pointed at either end disposed in the recesses, a balance wheel fixed to the shaft, and a magnet proximate the upper pivot block and operative to urge the shaft toward the upper pivot block against gravitational pull.
    Type: Grant
    Filed: February 12, 1980
    Date of Patent: December 29, 1981
    Inventor: Henry E. Ayer