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:
Nov. 01, 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 of which one physical parameter is correlated to the magnetic potential energy of the oscillator, the magnetic material being arranged along the annular path so that the physical parameter varies angularly in a periodic manner. The annular path includes, in each angular period, an area of accumulation of magnetic potential energy in the oscillator, radially adjacent to an impulse area. The magnetic material, in each accumulation area, is arranged so that the physical parameter of said magnetic material gradually increases angularly or gradually decreases angularly.