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:
Oct. 11, 2016
Filed:
Dec. 22, 2014
The Swatch Group Research and Development Ltd, Marin, CH;
Gianni Di Domenico, Neuchatel, CH;
Pascal Winkler, Marin, CH;
Jerome Favre, Neuchatel, CH;
Jean-Luc Helfer, Le Landeron, CH;
Baptiste Hinaux, Lausanne, CH;
Dominique Lechot, Reconvilier, CH;
Patrick Ragot, Fontainemelon, CH;
Fanel Piccini, Chambrelien, CH;
The Swatch Group Research and Development Ltd, Marin, CH;
Abstract
The invention concerns a device for regulating the relative angular speed between a magnetic structure and a resonator magnetically coupled to each other and forming an oscillator which defines a magnetic escapement. The magnetic structure includes at least one annular magnetic path at least partially formed of a magnetic material and the resonator includes at least one element for magnetic coupling to the annular magnetic path, this coupling element being formed of a magnetic material having a physical parameter correlated to the magnetic potential energy of the oscillator. The radial dimension of the annular magnetic path is smaller than a corresponding dimension of the coupling element, and the magnetic material is arranged so that the physical parameter of said magnetic material gradually increases angularly or gradually decreases angularly in order to obtain an angularly extended magnetic potential energy area in each angular period of the annular magnetic path.