Material transporting device

Claim 1

A TRANSPORTING DEVICE FOR GRANULAR MATERIAL COMPRISING, A VERTICALLY EXTENDING MATERIAL RECEIVING HOUSING HAVING A SELECTABLY OPENABLE DISCHARGE OPENING IN A LOWER PORTION THEREOF AND AN OUTLET OPENING IN AN UPPER PORTION THEREOF, A HOLLOW MATERIAL INLET COMMUNICATING WITH SAID HOUSING AT A LOCATION SPACED UPWARDLY OF SAID DISCHARGE OPENING, A FILTER MEMBER COMPRISING A HOLLOW POROUS DISK HAVING A DEFORMABLE OUTER PERIPHERY AND EXTENDING COMPLETELY ACROSS SAID HOUSING AT A LOCATION SPACED UPWARDLY FROM SAID INLET AND DOWNWARDLY FROM SAID OUTLET TO DIVIDE THE INTERIOR OF SAID HOUSING INTO UPPER AND LOWER INTERIOR PORTIONS; MEANS LOCATED WITHIN SAID HOUSING ENGAGEABLE WITH SAID DEFORMABLE OUTER PERIPHERY OF SAID FILTER MEMBER TO PROVIDE A PERIPHERAL AIR SEAL BETWEEN SAID UPPER AND LOWER INTERIOR PORTIONS; MEANS CARRIED BY AN UPPER PORTION OF SAID HOUSING FOR CREATING A VACUUM WITHIN SAID UPPER INTERIOR PORTION OF SAID HOUSIG WITH THE AIR IN SAID LOWER INTERIOR PORTION OF SAID HOUSING EVACUATING UPWARDLY THROUGH SAID FILTER MEMBER AND SAID OUTLET OPENING, SAID FILTER MEMBER HAVING A COMPLETELY ENCLOSED CHAMBER THEREIN EXTENDING TRANSVERSELY ACROSS SAID HOUSING, PASSAGEWAY MEANS EXTENDING FROM WITHIN SAID CHAMBER TO AN EXTERNALLY ACCESSIBLE PORTION OF SAID HOUSING, AND SELECTIVELY OPERABLE CONTROL MEANS CONNECTED TO SAID PASSAGEWAY MEANS TO CONTROL FLOW PRESSURIZED AIR THROUGH SAID PASSAGEWAY INTO SAID CHAMBER.