Patents by Inventor Jeremy Mammen

Jeremy Mammen 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).

  • MULTI-PORT EXHAUST VALVE
    Publication number: 20230359403
    Abstract: An exhaust valve includes a toroidal surface about an axis of rotation of the valve. The toroidal surface is positionable over a central exhaust port of an engine when lowered. The valve is raised by an actuator in response to increasing rotational speed of the crankshaft of the engine, thereby enlarging and raising the effective opening of the exhaust port. Lateral valve surfaces on either side of the toroidal surface close lateral exhaust ports when the valve is lowered. The lateral valve surfaces may be cylindrical and formed on fins.
    Type: Application
    Filed: July 20, 2023
    Publication date: November 9, 2023
    Inventors: Carson Price, Jeremy Mammen
  • Multi-port exhaust valve for two-stroke engines
    Patent number: 11761358
    Abstract: An exhaust valve includes a toroidal surface about an axis of rotation of the valve. The toroidal surface is positionable over a central exhaust port of an engine when lowered. The valve is raised by an actuator in response to increasing rotational speed of the crankshaft of the engine, thereby enlarging and raising the effective opening of the exhaust port. Lateral valve surfaces on either side of the toroidal surface close lateral exhaust ports when the valve is lowered. The lateral valve surfaces may be cylindrical and formed on fins.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: September 19, 2023
    Assignee: ARCTIC CAT INC.
    Inventors: Carson Price, Jeremy Mammen
  • MULTI-PORT EXHAUST VALVE FOR TWO-STROKE ENGINES
    Publication number: 20230258110
    Abstract: An exhaust valve includes a toroidal surface about an axis of rotation of the valve. The toroidal surface is positionable over a central exhaust port of an engine when lowered. The valve is raised by an actuator in response to increasing rotational speed of the crankshaft of the engine, thereby enlarging and raising the effective opening of the exhaust port. Lateral valve surfaces on either side of the toroidal surface close lateral exhaust ports when the valve is lowered. The lateral valve surfaces may be cylindrical and formed on fins.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 17, 2023
    Inventors: Carson PRICE, Jeremy Mammen