Patent ID: 6334653
Filing Date: 2002-01-01
Classification: B65G,E21D

Abstract:
Method for removing material from a pressure chamber, in which pressure chamber (1, 12) the material is mixed with a compressed gaseous medium and from which the pressurized material with said compressed gaseous medium moves out through an open inlet valve (4,24) by the force of the pressure in the pressure chamber which pressure is larger than a lower pressure prevailing in a space outside the pressure chamber, wherein the material with said compressible gaseous medium is pressed through said open inlet valve (4,24) into a conveyor chamber (2,22) which is limited by said inlet valve (4,24) and by a closed outlet valve (5,25), closing the inlet valve (4,24) and abruptly opening of the outlet valve (5,25) causing sudden expansion of said compressed gaseous medium and expelling material from said conveyor chamber into said space.