Patents by Inventor Smead P. Franklin, Jr.

Smead P. Franklin, Jr. 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).

  • Vent cleaning system
    Patent number: 4792363
    Abstract: A vent cleaning system for removing dust from a vent has a brush that substantially occludes the vent, and is rotated by a flexible shaft that is concentrically disposed in a flexible tubular vacuum conduit, so that dust is dislodged from the vent wall and vacuumed into the vacuum conduit.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: December 20, 1988
    Inventors: Smead P. Franklin, Jr., Edgar R. Johnson