B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
302/22
B65G 53/08 (2006.01) B65G 53/28 (2006.01) F04B 43/073 (2006.01)
Patent
CA 1233492
ABSTRACT OF THE DISCLOSURE Apparatus for pumping fluent solid material comprising first and second expansible chamber pumps and means interconnect- ing the pumps. The first expansible chamber pump has an inlet with a check valve for intake of material from a supply thereof on an intake stroke of the first pump and an outlet with a check valve for discharge of the material on a dischage stroke of the first pump. The apparatus also has a line for delivery of mate- rial from the outlet of the first pump, The second expansible chamber pump has an inlet with a check valve for intake of gas on an intake stroke of the second pump and an outlet with a check valve for discharge of gas on a discharge stroke of the second pump. Means interconnect the pumps for operation of the second pump through a discharge stroke on an intake stroke of the first pump and through an intake stroke on a discharge stroke of the first pump. A gas line interconnects the outlet of the second pump to the material delivery line downstream from and adjacent the outlet of the first pump whereby on each discharge stroke of the first pump the second pump takes in gas and on each intake stroke of the first pump the second pump pumps gas to the material delivery line behind the material delivered into the line through the outlet of the first pump on the preceding stroke of the first pump.
481014
Semi-Bulk Systems Inc.
Smart & Biggar
LandOfFree
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