Patents by Inventor Donald Willan CORSON

Donald Willan CORSON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • BALANCE FOR TIMEPIECES AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20210181679
    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.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 17, 2021
    Applicant: The Swatch Group Research and Development Ltd
    Inventors: Alexandre HAEMMERLI, Francois GUEISSAZ, Jean-Claude MARTIN, Lionel PARATTE, Yves WINKLER, Gianni DI DOMENICO, Pascal WINKLER, Jean-Luc HELFER, Lionel TOMBEZ, Bapitste HINAUX, Donald Willan CORSON, Michel WILLEMIN