Patents Assigned to S.M METAL CO., LTD.
  • Low-noise hydraulic hammer
    Patent number: 10363652
    Abstract: The present invention relates to a hydraulic hammer, and more specifically, to a low-noise hydraulic hammer, wherein an impact bar that is accommodated inside of a piston is inclined so as not to contact the inside of the piston thereby preventing cracks, and a noise insulating material or a heat sink is installed inside the piston or outside the impact bar, thereby reducing noise and improving heat radiation performance.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: July 30, 2019
    Assignee: S.M METAL CO., LTD.
    Inventor: Sung Kew Kim
  • LOW-NOISE HYDRAULIC HAMMER
    Publication number: 20160250739
    Abstract: The present invention relates to a hydraulic hammer, and more specifically, to a low-noise hydraulic hammer, wherein an impact bar that is accommodated inside of a piston is inclined so as not to contact the inside of the piston thereby preventing cracks, and a noise insulating material or a heat sink is installed inside the piston or outside the impact bar, thereby reducing noise and improving heat radiation performance.
    Type: Application
    Filed: November 21, 2014
    Publication date: September 1, 2016
    Applicant: S.M METAL CO., LTD.
    Inventor: Sung Kew KIM