Patents by Inventor Anthony E. Blackburn

Anthony E. Blackburn 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).

  • Piston engine cycles
    Patent number: 5598819
    Abstract: A four stroke engine cylinder head (16) has two inlet pipes (19 and 22) which contain alternate acting inlet valves (14 and 15). Fuel/air induction strokes through valve (14) alternate with air only induction strokes through valve (15) giving an eight stroke cycle under half load. When gate valve (23) is moved by a control to the dotted position, this seals the air only inlet and opens port (25) to give fuel/air induction strokes over half load and a four stroke cycle. Air only induction strokes or eight stroke cycles under half load may also be achieved by cutting out some fuel injectors or injection strokes as the load permits.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: February 4, 1997
    Inventor: Anthony E. Blackburn
  • Piston engines
    Patent number: 4776308
    Abstract: A four stroke engine cylinder (10) has a main chamber (12) and a main piston (16) reciprocally movable therein. The main piston (16) itself contains a secondary chamber in which a secondary piston (24) is reciprocally movable. The connecting rod (26) is connected to the secondary piston (24).
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: October 11, 1988
    Inventor: Anthony E. Blackburn