Patents by Inventor Sigeo Sasao

Sigeo Sasao 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).

  • Cooling system for a water cooled internal combustion engine
    Patent number: 5289803
    Abstract: A cooling system for a water cooled internal combustion engine for a vehicle includes an engine body having a water jacket therein. The system comprises a radiator and a pump chamber. The pump chamber is in communication with the water jacket. A water pump creates a flow of water into the water jacket. A first main conduit has an end connected to the water jacket at the engine outlet and another end connected to the radiator. A second main conduit has an end connected to the radiator and another end connected to the pump chamber. A reservoir tank is arranged at a position more elevated than the radiator, and a supplementation conduit connects a bottom portion of the reservoir tank with an upper part of the pump chamber. A thermostat valve is arranged between the second main conduit and the pump chamber at a position upstream from a location where the supplementation conduit is connected to the pump chamber.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: March 1, 1994
    Assignee: Nippon Soken, Inc.
    Inventors: Ryuichi Matsushiro, Toru Kosuda, Sigeo Sasao, Hiroyuki Fukunaga, Yasumasa Ikumi