Patents by Inventor Bernhard Paul Luscher

Bernhard Paul Luscher 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: 6164961
    Abstract: A vertical conveying apparatus is used particularly advantageously in a vertical continuous furnace, for example, in semiconductor production. Since rubbing contacts are avoided and there is thus barely any wear, continuous furnaces provided therewith are particularly suitable for the sensitive semiconductor products and production processes. Since no lateral guides are necessary for the specially designed carriers in the case of relatively small and average stack heights, there is no rubbing contact in the furnace region either, and wear is thus completely avoided. Furthermore, the invention is distinguished by its mechanical simplicity, which has advantages, in particular as far as durability and maintenance are concerned. The absence of retaining or transporting beams in the furnace region makes it possible to achieve a wide variety of different temperature zones over the vertical height of the stack.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: December 26, 2000
    Assignee: Lukon Paul Luscher Werke AG
    Inventors: Bernhard Paul Luscher, Markus Luscher