Patents by Inventor Archie G. Johnson

Archie G. Johnson 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).

  • Vortex generating device
    Patent number: 4424714
    Abstract: A narrow generator plate (10) is immersed parallel to the direction of flow in a fluid stream (14) for generating Karman vortices. The generator plate (10) has a shedding section wherein an aperture (26) intersects side surfaces (22) of the generator plate (10) to form leading aperture edges (28) which serve as shedding corners (32). The aperture (26) further intersects a trailing edge (18) of the generator plate (10).
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: January 10, 1984
    Assignee: Ford Motor Company
    Inventor: Archie G. Johnson
  • Vortex generating device
    Patent number: 4312237
    Abstract: A narrow generator plate (10) is immersed parallel to the direction of flow of a fluid stream (14) for generating Karman vortices (54). In one embodiment the generator plate (10) has a shedding section wherein an aperture (26) intersects side surfaces (20) of the generator plate (10) at shedding corners (32). A further embodiment includes a generator member (36) mounted on a leading edge (16) of a generator plate (10) and oriented upstream into the fluid stream.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: January 26, 1982
    Assignee: J-Tec Associates, Inc.
    Inventors: Glenn A. Thorne, Archie G. Johnson
  • Vortex generating device
    Patent number: 4312236
    Abstract: A narrow generator plate (10) is immersed parallel to the direction of flow of a fluid stream (14) for generating Karman vortices. In its various embodiments the generator plate (10) is provided with surface disruption (52) for generating boundary-layer turbulence in the fluid stream in order to eliminate the occurrence of a boundary-layer transition region which would otherwise occur for a range of fluid flow velocities of interest.
    Type: Grant
    Filed: December 28, 1979
    Date of Patent: January 26, 1982
    Assignee: J-Tec Associates, Inc.
    Inventors: Richard J. Mahany, Archie G. Johnson