Patents by Inventor Marcel Wener

Marcel Wener 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).

  • Water-cooled housing for a hot-blast slide valve
    Patent number: 5396920
    Abstract: The invention concerns a water-cooled casing for a hot-blast slide valve, in particular a slide valve in a pipe lined with refractory material. The casing has annular cooling-water ducts disposed concentrically with respect to each other in pairs, one downstream of the other with respect to the hot-air blast and on both sides of the space through which the sliding plate of the valve passes. The annular ducts are formed by two monobloc-construction casing components, each of which has two substantially annular hollows, the hollows being closed over by first and second annular components to form the ducts.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: March 14, 1995
    Assignee: Nouvelle Usine de Wecker S.A.
    Inventors: Jos. Rausch, Marcel Wener