Nivarox-far S.a.

Omega Sa

Laurent Jeanneret

Pierre Cusin

Marco Verardo

Emmanuel Graf

Stéphane Renard

Gerard Vorpe

Romain Le Moal

Gérard Vorpe

A barrel () for self-winding timepiece including a drum () provided with an inner lateral wall () and a mainspring () forming a winding including an outer coil () the end () of which is friction coupled with the inner lateral wall and free to slip against the inner lateral wall in the event of overtension of the mainspring (). The end of the outer coil includes an external face () having two friction surfaces () disposed in the top and bottom portion of the outer coil and arranged to be in contact with the inner lateral wall in such a way that the portion between the friction surfaces, referred to as central portion (), is not in contact with the inner lateral wall, the central portion forming a reservoir () for a lubricant between the two friction surfaces.

Barrel for timepiece

A wheel for an escapement system including a hub intended to be mounted with a staff for rotation therewith, the staff being intended to be subjected to a mechanical torque, a felloe, at least two arms extending from the hub to the felloe, and a toothing formed by a plurality of teeth. The wheel for the escapement system includes at least one recess on at least one of the faces thereof, the recess extending from the felloe to the hub.

Wheel for a reduced-inertia escapement system

A spiral spring for a timepiece resonator mechanism, the spiral spring extending substantially in a plane and including a flexible blade wound on itself in several turns and a setting device for modifying the effective length of the wound blade, the setting device including a clamp movable along at least one ending portion of the spiral spring, the clamp extending substantially in the plane of the spiral spring, the clamp including two bearing faces arranged on either side of the wound blade in a multiplicity of positions so as to define a variable effective length of the spiral spring, the clamp and the wound blade being linked to each other by a flexible element allowing the clamp and the bearing faces to be displaced along the wound blade.

Spiral spring for timepiece resonator mechanism provided with means for setting the effective length of the spiral spring

Growing community of inventors

Villers-le-Lac, France

Laurent Jeanneret