Patents by Inventor Wayne R. Steen

Wayne R. Steen 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).

  • Re-entrainment and air bleed device for pneumatic pipeline conveying systems
    Patent number: 4685841
    Abstract: Pneumatic pipeline conveying system includes a bleed valve for bleeding conveying gas into or out of a pipeline conduit. Such bleed valve is located at one or more strategic locations along the pipeline conduit where a degree of gas/material separation occurs in the conduit such as at bends and in long horizontal runs where a re-entrainment device is employed to re-entrain particulate material into the conveying gas within the pipeline.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: August 11, 1987
    Assignee: Hanna-Beric Systems, Inc.
    Inventors: Wayne R. Steen, William J. Aitken