Patents by Inventor Michel Langree

Michel Langree 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).

  • Electromagnet
    Patent number: 3970978
    Abstract: The object of the present invention is a direct current-operated electromagnet.The branch of the armature which penetrates the coil body cooperates with a fixed core branch in three distinct successive modes due to the action of different air gaps.It can advantageously be used on relays for automatic equipment or on small contactors whose number of contacts is variable and/or subject to time lags.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: July 20, 1976
    Assignee: La Telemecanique Electrique
    Inventor: Michel Langree