Patents by Inventor J. Michael Wentzell

J. Michael Wentzell 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).

  • Method for separating particulate materials
    Patent number: 4405452
    Abstract: Particulate materials of different density are separated from one another by placing them in non-reactive liquefied gas of intermediate density whereby the lighter material floats and the heavier material sinks. A pressure field may be established in the liquefied gas to enhance the particulate separation process. The method is especially suited for separating and removing oxide and other particulate contaminants from metal and alloy powders.
    Type: Grant
    Filed: November 22, 1978
    Date of Patent: September 20, 1983
    Assignee: United Technologies Corporation
    Inventor: J. Michael Wentzell