Patents Assigned to Cheol-seung Cho
  • Engine using compressed air
    Patent number: 5491977
    Abstract: An engine (32) driven by compressed air, including an electric motor (36) driven by a battery (B), a compressor for generating the compressed air by use of a drive power of the electric motor (36), an intake manifold (40) connected with an outlet of the compressor with the intake manifold (40), a crank shaft having four separate crank pins being connected to a piston in the cylinder by a connecting rod, and a cam shaft connected with the crank shaft by a belt or chain.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: February 20, 1996
    Assignee: Cheol-seung Cho
    Inventors: Cheol-seung Cho, Kwang-soo Han