Patents by Inventor Tadayuki Seto

Tadayuki Seto 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).

  • Lubricating oil supply means for rotary piston engines
    Patent number: 4390330
    Abstract: Lubricating oil supply device for a rotary piston engine including an oil port opened to a working chamber at the trochoidal inner wall of the rotor housing, a bore formed radially in the rotor housing to communicate with the oil port, a plug fitted to the bore close to an end adjacent to the oil port and having a nozzle opening opposed to the wall of the bore, an oil supply conduit extending axially in the bore and opening to the bore in the vicinity of the plug, and an air passage opening the bore to the atmosphere.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: June 28, 1983
    Assignee: Toyo Kogyo Co. Ltd.
    Inventors: Hiroshi Kodama, Tadayuki Seto