Patents by Inventor Ronald W. Roderweiss

Ronald W. Roderweiss 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 with hemi-spherical cylinder head and matched radiused piston
    Patent number: 5816229
    Abstract: An internal combustion engine having a piston is disclosed. The piston has a circular flat piston heat portion extending normal to the piston axis and opposed depressions opposite the combustion chamber intake and exhaust openings, respectively. The circular flat piston head portion includes a beveled rim with a radiused profile, the piston head having a circular edge and the cylinder head has a circular circumferential edge which matches the circular edge of the piston to define a uniform quench area upon the compression stroke of the piston.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: October 6, 1998
    Assignee: HD Performance Products Inc.
    Inventors: Ronald W. Roderweiss, Frederick P. Hall
  • Radiused piston head
    Patent number: D399212
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: October 6, 1998
    Assignee: HD Performance Products Inc.
    Inventors: Ronald W. Roderweiss, Frederick P. Hall