Patents by Inventor David James Rorke

David James Rorke 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).

  • Internal combustion engine
    Patent number: 6729290
    Abstract: A piston (17) for an internal combustion engine. The piston (17) has a piston head (43) and a recess (46) formed in the piston head. A formation (91) is associated with the recess (46) for generating a turbulent motion in a fluid introduced into the recess. The formation (91) is configured to generate a swirling turbulent motion to the fluid introduced into the recess and preferably comprises spiral grooves (93) formed in the piston.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: May 4, 2004
    Assignee: Aardvark Pty. Ltd.
    Inventor: David James Rorke