Patents by Inventor Stephen B. SCHULTZ

Stephen B. SCHULTZ 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).

  • Exhaust system for two-stroke internal combustion engine
    Patent number: 9010099
    Abstract: An exhaust pipe for two-stroke, internal-combustion engines in which there are multiple exhaust expansion chambers, each within one another, used in combination, the multiple chambers allow for the combustible fuel/air mixture to be delivered in more optimal reflective pressure waves throughout the RPM range of the engine. By changing the number of the chambers, their size and shape, the design of the exhaust pipe can be tuned for torque and power while requiring a minimum of space.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: April 21, 2015
    Inventor: Stephen B. Schultz
  • EXHAUST SYSTEM FOR TWO-STROKE INTERNAL COMBUSTION ENGINE
    Publication number: 20130125535
    Abstract: An exhaust pipe for two-stroke, internal-combustion engines in which there are multiple exhaust expansion chambers, each within one another, used in combination, the multiple chambers allow for the combustible fuel/air mixture to be delivered in more optimal reflective pressure waves throughout the RPM range of the engine. By changing the number of the chambers, their size and shape, the design of the exhaust pipe can be tuned for torque and power while requiring a minimum of space.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 23, 2013
    Inventor: Stephen B. SCHULTZ