Patents by Inventor Marius Frederik Fierst Van Wijnandsbergen

Marius Frederik Fierst Van Wijnandsbergen 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: 3956607
    Abstract: An electric contact device provided with a composite annular contact member and a contact pin cooperating therewith. This contact member comprises a metal holder with a cavity and contained in the latter a circularly bent stack of V-folded contact plates and a stabilizing ring for said plates. Said ring extends through slots of all contact plates and said slots are formed in the narrower inwards extending parts of the contact plates. Said narrower plate parts are adapted to contact with their free contact edges the contact pin and the outwards extending broader parts of the contact plates are with their free contact edges in permanent contact with the holder.
    Type: Grant
    Filed: April 18, 1974
    Date of Patent: May 11, 1976
    Assignee: COQ B.V.
    Inventor: Marius Frederik Fierst Van Wijnandsbergen