Patents by Inventor Hyo-Jae Lee

Hyo-Jae Lee 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).

  • Publication number: 20070295410
    Abstract: A discharge valve (100) of a compressor is disclosed. The discharge vlave (100) contains a spring-loaded valve body (120). Valve body (120) is preferably made of nonferrous metal like aluminum or magnesium and is coated by a covering (110) of uniform thickness, the covering (110) beeing preferably made of plastic material like polyetheretherketone (PEEK) by insertion molding. By that way a wear resistant and light-weight discharge valve is produced.
    Type: Application
    Filed: November 11, 2005
    Publication date: December 27, 2007
    Inventors: Jong-Yoon Choi, Sang-Wook Ahn, Bon-Cheol Ku, Hyung-Pyo Yoon, Hyo-Jae Lee, Seong-Yeol Hyeon
  • Patent number: 6932115
    Abstract: The present invention relates to a valve apparatus for a hermetic compressor. In the present invention, an elastic lead (40) is integrally formed with a discharge valve (30) in order to reduce striking force generated when the discharge valve (30) strikes a valve seat (26) and to facilitate opening of the discharge valve (30). The elastic lead (40) is formed by cutting out an intermediate portion of the discharge valve (30), and a free end of the elastic lead is bent to directed to a free end (36) or a clasped portion (32) of the discharge valve (30). The free end (36) of the elastic lead (40) is supported on a bottom surface of a recess (27) in a valve plate (20), and thus, the elastic lead (40) exerts elastic force on the discharge valve (30) in a direction that the discharge valve (30) is opened. According to the present invention constructed as such, noise generated when the discharge valve (30) operates can be minimized, and opening/closing operation of the discharge valve (30) can be smoothly performed.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: August 23, 2005
    Assignee: LG Electronics Inc.
    Inventors: Tae-Min Kim, Hyo-Jae Lee
  • Publication number: 20050175474
    Abstract: A vibration reduction structure of a reciprocating compressor comprises: a case having a suction pipe for introducing a refrigerant and a discharge pipe for discharging a refrigerant at both sides thereof; an assembly installed in the case to compress a refrigerant and composed of a cylinder, a piston, a driving unit, and a discharge valve assembly; a loop pipe installed between the discharge valve assembly and the discharge pipe with a curved shape; and a connection unit for connecting a first point of the loop pipe and a second point of the loop pipe facing the first point and thereby reducing a vibration transmission. According to this, vibration generated as the piston is operated can be transmitted to the compressor through many paths including the loop pipe and the additional connection unit. Also, generated vibration can be canceled to each other due to its phase difference, thereby preventing vibration from being transmitted to the entire case.
    Type: Application
    Filed: February 7, 2005
    Publication date: August 11, 2005
    Inventors: Hyo-Jae Lee, Dong-Won Lee
  • Publication number: 20040231737
    Abstract: The present invention relates to a valve apparatus for a hermetic compressor. In the present invention, an elastic lead (40) is integrally formed with a discharge valve (30) in order to reduce striking force generated when the discharge valve (30) strikes a valve seat (26) and to facilitate opening of the discharge valve (30). The elastic lead (40) is formed by cutting out an internediate portion of the discharge valve (30), and a free end of the elastic lead is bent to directed to a free end (36) or a clasped portion (32) of the discharge valve (30). The free end (36) of the elastic lead (40) is supported on a bottom surface of a recess (27) in a valve plate (20), and thus, the elastic lead (40) exerts elastic force on the discharge valve (30) in a direction that the discharge valve (30) is opened. According to the present invention constructed as such, noise generated when the discharge valve (30) operates can be minimized, and opening/closing operation of the discharge valve (30) can be smoothly performed.
    Type: Application
    Filed: March 12, 2004
    Publication date: November 25, 2004
    Inventors: Tae-Min Kim, Hyo-Jae Lee