Patents by Inventor Chul Gi Rho

Chul Gi Rho 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).

  • Dual capacity compressor
    Patent number: 7146903
    Abstract: Dual capacity compressor including a power generating part (20) having a reversible motor (21, 22) and a crank shaft (23) inserted in the motor (21, 23), a compression part (30) having a cylinder (32), a piston (31), and a connecting rod (33), a crank pin (110) in an upper part of the crank shaft (23) eccentric to an axis of the crank shaft, an eccentric sleeve (120) rotatably fitted to the crank pin (110), and the connecting rod (33) respectively, a key member (130) for positive fastening of the eccentric sleeve (120) to the crank pin (110) in all rotation directions of the motor, and an eccentric mass (200) provided to the eccentric sleeve (120) for rotating the eccentric sleeve (120) around the crank pin (110), thereby preventing relative motion between components that sustain the eccentricity, and permitting a smooth motion between the components.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: December 12, 2006
    Assignee: LG Electronics Inc.
    Inventors: Cheal Lak Choi, Dal Soo Kang, Chul Gi Rho, Min Young Seo, Kee Joo Kim, June Soo Hur