Patents by Inventor Leon Ulveing

Leon Ulveing 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 and apparatus for the injection by pneumatic means of metered amounts of pulverulent materials into a vessel which is under variable pressure
    Patent number: 4702182
    Abstract: A pneumatic mixture which has a relatively high content of pulverulent materials in the propulsion air is formed in a single metering means. This mixture is propelled through a common primary pipe to a distribution head in which the mixture is divided into secondary currents which are delivered respectively to each of the injection points. A supercritical speed is imparted to the mixture in the distribution head.
    Type: Grant
    Filed: August 5, 1986
    Date of Patent: October 27, 1987
    Assignee: Paul Wurth S.A.
    Inventors: Leon Ulveing, Joseph Linden, Matthias Bohnet, Georges Wies, Raymond Mack