Patents by Inventor Steven Valisko

Steven Valisko 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 manifold device
    Patent number: 6516613
    Abstract: An exhaust manifold device is provided to allow air to enter an exhaust manifold during normal operation or an engine to prevent exhaust gases being sucked into the cylinders via exhaust valves. Air can be supplied, via valves (18 and 21) to the exhaust manifold as required and, is supplied to the valve (21) at pressures, above atmospheric pressure, that increase with engine speed. Synchronized electrical pulses are supplied to a solenoid (18A) to open the valve (18).
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: February 11, 2003
    Inventor: Steven Valisko
  • Internal combustion engines
    Patent number: 6189318
    Abstract: An internal combustion engine is provided with a vacuum pump (17) to remove burnt gases form the engine cylinders during an exhaust stroke. The vacuum applied by the pump (17) is sufficient to remove the gases during an exhaust stroke and also apply a force to lift the piston. A certain amount of torque is therefore generated during the exhaust strokes. In a similar manner and to similar effect a compressor (18) is provided to force fuel into the cylinders during induction strokes and also create a certain amount of positive torque.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: February 20, 2001
    Assignee: Gentech Design Limited
    Inventor: Steven Valisko
  • Exhaust manifold device
    Patent number: 6119454
    Abstract: An exhaust manifold device is provided to allow air to enter an exhaust manifold during normal operation of an engine to prevent exhaust gases being sucked into the cylinders via exhaust valves. Air can be supplied via valves (18 and 21) to the exhaust manifold as required and is supplied to the valve (21) at pressures, above atmospheric pressure, that increase with engine speed.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: September 19, 2000
    Assignee: Gentech Design Limited
    Inventor: Steven Valisko