Patents Assigned to Chun Heir Industry Co., Ltd.
  • Method for making a shoe sole with different resilient areas
    Patent number: 6884376
    Abstract: A method for making a shoe sole includes step of preparing various types of foamable material; step of making the foamable material into particles; step of preparing a mold having a cavity in which the foamable material is being put; and step of foaming the foamable material in the cavity and obtaining a sole. The foamable material has different resilient coefficients but the same foaming rate so that the sole can be a made by a single foaming process and includes various resilient features.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: April 26, 2005
    Assignees: Chun Heir Industry Co., Ltd.
    Inventors: Ching-Chin Chen, Shih-Kan Liang
  • Method for manufacturing EVA outsoles
    Patent number: 6299806
    Abstract: A method for manufacturing EVA outsoles includes step 1 to mix EVA and foaming agent to become a mixture; step 2 to press the mixture to be a plate; step 3 to cut the plate into strips; step 4 to overlap the strips to a desired weight; step 5 to heat the overlapped strips in step 4 in a mold to form an outsole, and step 6 to trim the outsoles.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: October 9, 2001
    Assignees: Chun Heir Industry Co., Ltd.
    Inventors: Ching-Chin Chen, Shih-Kan Liang