Patents by Inventor Rudolph A. Mangiarotty

Rudolph A. Mangiarotty 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).

  • Control of laminar flow in fluids by means of acoustic energy
    Patent number: 4802642
    Abstract: Retarding of the point of transition from laminar flow to turbulent flow in aerodynamic boundary layers on the surfaces of aircraft is accomplished by radiating acoustic energy at frequencies greater than twice the critical Tollmein-Schlichting frequency into the boundary layer. The acoustic energy interferes with the formation of Tollmein-Schlichting waves, thereby increasing the incidence of laminar flow and reducing aerodynamic drag.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: February 7, 1989
    Assignee: The Boeing Company
    Inventor: Rudolph A. Mangiarotty