Patents Assigned to Northern California Diagnostic Laboratories, Inc.
  • Exhaust system for an internal combustion engine
    Patent number: 8707689
    Abstract: An exhaust system for an internal combustion engine including an elongated tube for receiving exhaust gas and exhaust flow modification structure within the tube interior configured to cooperate with the elongated tube to produce a laminar flow of exhaust gas and modify the flow speed of the exhaust gas due to the venturi effect.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 29, 2014
    Assignee: Northern California Diagnostic Laboratories, Inc.
    Inventors: Michael Spencer-Smith, James Stewart Grant, Louis Walch, Adam Weidauer
  • Apparatus for reducing evaporative hydrocarbon fuel emissions from an internal combustion engine and for improving the performance thereof
    Patent number: 5740779
    Abstract: A sensor is employed in conjunction with an internal combustion engine having at least one hydrocarbon fuel combustion chamber and an air inlet for introducing air into the combustion chamber to sense termination of operation of the internal combustion engine. The sensor closes a valve leading to a carburetor inlet of the engine when termination of operation of the internal combustion engine is sensed. The valve and associated structure improve the performance of the internal combustion engine when the valve is in open position by enhancing fluid flow through the air inlet leading to the carburetor during operation of the internal combustion engine.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: April 21, 1998
    Assignee: Northern California Diagnostic Laboratories, Inc.
    Inventor: Mike Spencer-Smith