Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Terrence M. Fulkerson0
Date of Patent
August 16, 2011
Patent Application Number
12407929
Date Filed
March 20, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A dense phase pump for particulate material includes a pump chamber wherein material flows into the pump chamber under negative pressure and flows out of the pump chamber under positive pressure. A plurality of pinch valves are provided to control flow of material into and out of the pump chamber. The pinch valves are operated independent of each other and of the pump cycle rate. A modular design of the pump is provided.
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