Line sifter

Claim 1

A METHOD FOR CONTINUOUSLY PROVIDING, SIFTING AND EXITING AN AIR-PARTICLE MIXTURE TO AND FROM A PRESSURE TIGHT CHAMBER COMPRISING THE STEPS OF: RETAINING THE INTERNAL PRESSURE WITHIN SAID PRESSURE TIGHT CHAMBER SUBSTANTIALLY CONSTANT DURING OPERATION; CAUSING A PRESSURIZED MIXTURE OF AIR AND SOLID PARTICLES TO BE DIRECTED INTO SAID CHAMBER; DEFLECTING SAID AIR-PARTICLE MIXUTE FROM ITS LINE OF ENTRY INTO SAID CHAMBER SO THAT THE FORCE WITH WHICH SAID PARTICLES STRIKE INTERNAL SCREENING MEANS WITHIN SAID CHAMBER IS INSUFFICIENT TO CAUSE SAID PARTICLES TO PASS THROUGH SAID SCREENING MEANS; MECHANICALLY RECIPROCATING SAID CHAMBER TO CAUSE FINE PORTIONS OF SAID PARTICLES TO PASS THROUGH SAID SCREENING MEANS; EXITING, UNDER FORCE, COARSE PORTIONS OF SAID PARTICLES FROM SAID CHAMBER THROUGH AN OUTLET, BY MEANS OF A CURRENT OF AIR WHICH FORMED A PORTION OF THE INITIAL AIR ENTERING SAID CHAMBER; AND EXITING, UNDER FORCE, SAID FINE PARTICLES FROM SAID CHAMBER THROUGH A FURTHER OUTLET, BY MEANS OF A CURRENT OF AIR WHICH FORMED A PORTION OF THE INITIAL AIR ENTERING SAID CHAMBER, WHEREBY BY VIRTUE OF THE FORCE ATTRIBUTABLE TO SAID AIR CURRENT, SAID FINE PARTICLES MAY BE MOVED A SUBSTANTIAL DISTANCE FROM SAID CHAMBER.