Patents by Inventor Jonannes H. L. A. Hilderink

Jonannes H. L. A. Hilderink 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).

  • Process for fixing a metal screen in the housing of a vacuum switch
    Patent number: 5077883
    Abstract: In the process of fixing a metal screen in the housing of a vacuum switch, the screen is plastically deformed radially outwards over an internal supporting edge in the housing. The plastic deformation of the screen is carried out at an edge thereof, in such a way that an outward flanged edge is formed. Thus, the screen is retained on the supporting edge by that flanged edge and a part of the housing with a relatively large diameter. Therefore, the screen has a part with a relatively small diameter which is essentially equal to the internal diameter of the supporting edge of the housing.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: January 7, 1992
    Assignee: Holec Systemen en Componenten B.V.
    Inventors: Hans Schellekens, Klaas Lenstra, Jonannes H. L. A. Hilderink, Johan H. J. Ter Hennepe