Patents by Inventor MIKE S.C. CHENG

MIKE S.C. CHENG 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).

  • Oil hydraulic cylinder and spindle thereof
    Patent number: 9702382
    Abstract: A spindle of an oil hydraulic cylinder includes a main body and a circular ring shaped copper coat. The main body defines a central axis and has a large diameter segment and a small diameter segment integrally extended from the large diameter segment. The copper coat is brazed on an outer surface of the large diameter segment. The center of the copper coat is arranged at the central axis, and the radius of the spindle is greatest at a portion of the spindle coated by the copper coat. The abrasion resistance of the copper coat is greater than the abrasion resistance of the main body. Thus, the spindle of the instant disclosure is a composite structure and is provided for reducing abrasion. Additionally, the instant disclosure also provides an oil hydraulic cylinder.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: July 11, 2017
    Assignee: WORLD FRIENDSHIP CO., LTD.
    Inventors: Kun-Shan Hsu, Mike S.C. Cheng
  • OIL HYDRAULIC CYLINDER AND SPINDLE THEREOF
    Publication number: 20160169254
    Abstract: A spindle of an oil hydraulic cylinder includes a main body and a circular ring shaped copper coat. The main body defines a central axis and has a large diameter segment and a small diameter segment integrally extended from the large diameter segment. The copper coat is brazed on an outer surface of the large diameter segment. The center of the copper coat is arranged at the central axis, and the radius of the spindle is greatest at a portion of the spindle coated by the copper coat. The abrasion resistance of the copper coat is greater than the abrasion resistance of the main body. Thus, the spindle of the instant disclosure is a composite structure and is provided for reducing abrasion. Additionally, the instant disclosure also provides an oil hydraulic cylinder.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 16, 2016
    Inventors: KUN-SHAN HSU, MIKE S.C. CHENG