Patents by Inventor Albert L. Rolland

Albert L. Rolland 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).

  • Patent number: 4638200
    Abstract: The rotor (1), which has magnets (3) in particular of the rare earth-cobalt type, is surrounded by a hoop formed by a metal which has been cold work-hardened and has a high elastic strength so as to form a sleeve which exerts on the subjacent magnets a high pre-stressing force.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: January 20, 1987
    Assignee: Precision Mecanique Labinal
    Inventors: Loic Le Corre, Albert L. Rolland