Patents by Inventor Masafumi Matsuoka

Masafumi Matsuoka 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).

  • System for preventing outflow of oil from an oil filler port
    Patent number: 4124011
    Abstract: A system for preventing outflow of oil from an oil filler port of an overhead camshaft engine. The system comprises a partition wall extending downwardly from a cylinder head cover to divide the interior thereof into a timing chain chamber having a timing chain gear and a timing chain and a valve chamber having the oil filler port, a cam shaft and intake and exhaust valves. The partition wall prevents lubricating oil splashed in the timing chain chamber by rotation of the timing chain from getting into the valve chamber, and thereby prevents outflow of lubricating oil through the oil filler port.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: November 7, 1978
    Assignee: Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Taiji Saito, Masafumi Matsuoka