Patents Assigned to David Ward
  • Carburetor having bidirectional fuel passage
    Patent number: 4965023
    Abstract: An improved bidirectional fuel passage carburetor includes an air density compensator and overall trim, an increased idle air and enrichment device, an air bounce check valve, a fuel valve shutoff, and a load enrichment device. In an alternate embodiment, the carburetor includes a load trim screw for adjustment the main fuel orifice. In yet another embodiment of the invention, temperature compensation for the air-fuel ratio is provided.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: October 23, 1990
    Assignee: David Ward
    Inventor: James S. Jones