Patents by Inventor Robert C. Costen

Robert C. Costen 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).

  • Smokestack-mounted airfoil
    Patent number: 4099452
    Abstract: A system for improving the effluent dispersal characteristics of smokestacks subject to relative winds comprising a vortex generating airfoil attached to a smokestack near the stack gas exit. Relative winds passing over the airfoil create strong vortices which entrain and hold together smokestack effluents until the vortices deteriorate. The vortex flow direction and angle of ascension may be controlled in order to achieve optimum effluent dispersal by varying the airfoil angle of attack.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: July 11, 1978
    Inventor: Robert C. Costen
  • Vortex generator for controlling the dispersion of effluents in a flowing liquid
    Patent number: 4026527
    Abstract: A method is disclosed for controlling the dispersion of effluents in a flowing liquid. A vortex generator for creating a distinct recirculating vortical flow is disposed in a flowing liquid and effluents are discharged into the vortical flow. The effluents are entrained in the vortical flow and by selectively positioning the vortex generator the dispersion of the entrained effluents can be controlled.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: May 31, 1977
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: Robert C. Costen