Patents Examined by IV Massie
  • Cheeking device, particularly for the hanging roof in mines, underground working points, or heading and similar
    Patent number: 4871214
    Abstract: The present invention is a device for removing boulders loosened by an explosion, from the hanging roof of a mining gallery. The device is a pole which supports a pneumatic hammer and a striking head at one end thereof and a gripping handle at its opposite end. The handle has a trigger mechanism for remote control of the pneumatic hammer. The inner section of the striking head is a formation of hollow, honeycombed cells, for reducing the weight of the striking head.
    Type: Grant
    Filed: August 5, 1988
    Date of Patent: October 3, 1989
    Assignee: Sories
    Inventor: Bernard Pradelle