Patents Assigned to Sandvik Mining and Construction AB
  • Patent number: 12054990
    Abstract: The present disclosure relates to a rock drill bit for a percussive drilling hammer positioned at the cutting end of a hammer. The drill bit includes a head, an elongated shank connected to the head at a front end of the bit, a head-shank transition area where the head connects to the shank, an anvil at the rear end of the shank for receiving the impact of the piston, a plurality of buttons provided at the front face of the head configured to engage the material to be crushed in the intended direction of drilling, and a plurality of flushing passages extending through the head and having at least one opening at the front face of the head. An angle formed between the head and the shank at the head-shank transition area is greater than 100 degrees.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 6, 2024
    Assignee: Sandvik Mining and Construction AB
    Inventors: Olivier Bruandet, Mathias Hareland, Gustav Gewers