Patents by Inventor Mathias L. M. Tunissen

Mathias L. M. Tunissen 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: 5557169
    Abstract: An electric lamp includes a lamp vessel sealed in a gastight manner and having a wall of ceramic material. A current supply conductor is connected to an electric element arranged in the lamp vessel and issues to the exterior via a lead-through channel in the wall. The current supply conductor has a first part with a comparatively high and a second part with a comparatively low melting point, which parts form a welded joint with mutually facing ends. The first part merges into a narrowing end having a length L and having a circumference O at the transition, which length L is at least one tenth of the circumference O, while the end is embedded at least partly in the end of the second part. This induction has the advantage that the current supply conductor can be manufactured more efficiently and with less wastage.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: September 17, 1996
    Assignee: U.S. Philips Corporation
    Inventors: Franciscus H. Van Lierop, Mathias L. M. Tunissen