Patents by Inventor Jouko Kylmanen

Jouko Kylmanen 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: 4127757
    Abstract: A contact device for an electric switch comprising at least two interconnectable contacts and at least two contact knives movable relative thereto and adapted, in the closed position of the switch, to clamp between themselves at least one of the contacts. The contact knives are enclosed in pairs by iron elements or similar which, when a short-circuit current passes through the contact knives, act as a magnets increasing the contact force.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: November 28, 1978
    Assignee: OY. Stromberg AB.
    Inventor: Jouko Kylmanen