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. 07, 2023
Filed:
Dec. 03, 2018
The Swatch Group Research and Development Ltd, Marin, CH;
Alexandre Haemmerli, Neuchatel, CH;
Francois Gueissaz, Cormondreche, CH;
Jean-Claude Martin, Montmollin, CH;
Lionel Paratte, Marin-Epagnier, CH;
Yves Winkler, Schmitten, CH;
Gianni Di Domenico, Neuchatel, CH;
Pascal Winkler, St-Blaise, CH;
Jean-Luc Helfer, Le Landeron, CH;
Lionel Tombez, Bevaix, CH;
Baptiste Hinaux, Lausanne, CH;
Donald William Corson, Yverdon-les-Bains, CH;
Michel Willemin, Preles, CH;
The Swatch Group Research and Development Ltd, Marin, CH;
Abstract
A balance for timepieces includes a rim, a hub, and at least one arm connecting the hub to the rim. At least one portion of the balance is made of an at least partially amorphous metal alloy. The at least partially amorphous metal alloy is based on an element chosen from the group consisting of platinum, zirconium and titanium, and has a coefficient of thermal expansion comprised between 7 ppm/° C. and 12 ppm/° C. The balance can be manufactured by moulding. A resonator can include such a balance and a monocrystalline quartz balance spring.