MUMBAI, India, Sept. 26 -- Intellectual Property India has published a patent application (202527058589 A) filed by Sandvik Mining And Construction Oy, Tampere, Finland, on June 18, for 'fully sealed down the hole hammer.'

Inventor(s) include Bruandet, Olivier.

The application for the patent was published on Sept. 26, under issue no. 39/2025.

According to the abstract released by the Intellectual Property India: "A down the hole drilling assembly comprising a drill bit, a shank, a driver sub, a flushing passage sub, at least one flushing channel, a sealing element arranged in the flushing passage and extending radially from the outer surface of the shank to the inner surface of the driver sub, wherein the flushing passage and the at leas...