Patents by Inventor Mats Hedenborg

Mats Hedenborg 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).

  • Rock drill telescopic arm and rock drill
    Patent number: 9995091
    Abstract: A rock drill telescopic arm is provided having a fixed arm which is sleeved on a movable arm; a telescopic oil cylinder; a plurality of adjusting blocks in the fixed arm along a circumferential direction thereof; a plurality of adjusting screw rods for respectively adjusting the position of each of the adjusting blocks on the fixed arm; a wear-resistant sliding block between at least part of the adjusting blocks and the movable arm; and a retainer at an opening end of the fixed arm for preventing the wear-resistant sliding block from moving along a telescoping direction of the movable arm, wherein the movable arm can be driven by the telescopic oil cylinder to slide along the wear-resistant sliding block. A rock drill equipped with the rock drill telescopic arm provides for convenient adjustment of a gap between the fixed arm and the movable arm.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: June 12, 2018
    Assignee: EPIROC (NANJING) CONSTRUCTION AND MINING EQUIPMENT CO., LTD.
    Inventors: Dongliang Bu, Jianming Shi, Per Elven, Mats Hedenborg, Zhongxi Zhou, Yucang Zheng
  • ROCK DRILL TELESCOPIC ARM AND ROCK DRILL
    Publication number: 20160145950
    Abstract: A rock drill telescopic arm is provided having a fixed arm which is sleeved on a movable arm; a telescopic oil cylinder; a plurality of adjusting blocks in the fixed arm along a circumferential direction thereof; a plurality of adjusting screw rods for respectively adjusting the position of each of the adjusting blocks on the fixed arm; a wear-resistant sliding block between at least part of the adjusting blocks and the movable arm; and a retainer at an opening end of the fixed arm for preventing the wear-resistant sliding block from moving along a telescoping direction of the movable arm, wherein the movable arm can be driven by the telescopic oil cylinder to slide along the wear-resistant sliding block. A rock drill equipped with the rock drill telescopic arm provides for convenient adjustment of a gap between the fixed arm and the movable arm.
    Type: Application
    Filed: June 18, 2014
    Publication date: May 26, 2016
    Applicant: ATLAS COPCO (NANJING) CONSTRUCTION AND MINING EQUIPMENT LTD.
    Inventors: Dongliang BU, Jianming Shi, Per Elven, Mats Hedenborg, Zhongxi Zhou, Yucang Zheng