Patents by Inventor Bernard Rosa

Bernard Rosa 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).

  • Variable camshaft assembly
    Patent number: 4388897
    Abstract: A variable camshaft assembly which serves to vary the timing of poppet valves in an internal combustion engine. An axially movable wormed camshaft controls a number of splitable cams of conventional cross section operating individual valves. When the camshaft is shifted axially, each valve operating cam splits into two operating elements. When the raised noses of the splitable cam elements are in alignment, the valve event is minimal. When the raised noses are in misalignment, the valve event is extended.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: June 21, 1983
    Inventor: Bernard Rosa