Patents by Inventor John E. McRae

John E. McRae 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).

  • Engine connecting rod and crankshaft assembly
    Patent number: 7814881
    Abstract: A four cycle piston engine has a crankshaft that includes a crank pin and a guide pin rotatable as a unit around the crankshaft rotational axis. The connecting rod has a linear trackway that slidably engages the guide pin so that the rod has linear slidable motion relative to the crankshaft. During the power stroke the connecting rod applies a pulling force to the crank pin via a special force-transmitting linkage.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: October 19, 2010
    Inventor: John E. McRae
  • Engine connecting rod and crankshaft assembly
    Publication number: 20090314247
    Abstract: A four cycle piston engine has a crankshaft that includes a crank pin and a guide pin rotatable as a unit around the crankshaft rotational axis. The connecting rod has a linear trackway that slidably engages the guide pin so that the rod has linear slidable motion relative to the crankshaft. During the power stroke the connecting rod applies a pulling force to the crank pin via a special force-transmitting linkage.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 24, 2009
    Inventor: John E. McRae