Patents Assigned to Johnny M. Smith, Jr.
  • Vehicle anti-pollution exhaust device
    Patent number: 4706454
    Abstract: An exhaust filter for internal combustion engines enabling the gradual filtration of the exhaust gas to minimize pressure drop through the filter is provided. A second exhaust gas passageway within the filter gradually receives the exhaust gas from the first and primary exhaust gas passageway, and after filtration, the diverted exhaust gas gradually is returned to the primary passageway for discharge from the exhaust filter.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: November 17, 1987
    Assignee: Johnny M. Smith, Jr.
    Inventor: Johnny M. Smith, Jr.