The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 03, 2024
Filed:
Jul. 13, 2021
The Swatch Group Research and Development Ltd, Marin, CH;
Jean-Jacques Born, Morges, CH;
Jean-Pierre Mignot, Pontarlier, FR;
Matthias Imboden, St-Blaise, CH;
Cédric Nicolas, Neuchâtel, CH;
The Swatch Group Research and Development Ltd, Marin, CH;
Abstract
A timepiece mechanism including a magnetic gear formed of a first wheel and a second wheel, the first wheel being provided with first alternating magnetic poles forming a magnetic toothing and the second wheel being provided with a toothing made of ferromagnetic material which has a magnetic coupling with the magnetic toothing, such that, when one of the first or second wheels is driven in rotation, this wheel rolls, via the magnetic coupling, over a geometric circle centred on the other wheel and linked to this other wheel. The magnetic gear further includes a ferromagnetic element arranged relative to the first wheel so as to offset at least most of a magnetic disturbance torque to which the first wheel is subjected, resulting from the magnetic coupling, this magnetic disturbance torque having a periodic variation in intensity according to the angular position of the first wheel.