Patents by Inventor Didier Merlette

Didier Merlette 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).

  • Moving-armature electromagnetic device
    Patent number: 4177440
    Abstract: The invention relates to a moving-armature electro-magnetic device such as a plunger core electromagnet wherein a ring of a non-magnetic material with an appropriate anti-friction coefficient is placed between the armature and the seat which cooperates with said armature. Said ring permits to reduce to a minimum both the frictional forces and the remanence forces between said armature and said seat.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: December 4, 1979
    Assignee: Techniques Europeennes de Commutation (T.E.C.)
    Inventor: Didier Merlette