F - Mech Eng,Light,Heat,Weapons – 04 – F
Patent
F - Mech Eng,Light,Heat,Weapons
04
F
103/134
F04F 1/02 (2006.01) E02B 8/08 (2006.01)
Patent
CA 1281593
Frail Material Slurry Pump Abstract of the Disclosure A pump for pumping a slurry of frail material is provided by a rigid chamber which is connected to a source of negative air pressure when an inlet valve is open and an outlet valve closed to suck the slurry through the open inlet valve into the chamber, the amount of slurry in the chamber is sensed and when it reaches a preset amount a controller is triggered to disconnect the source of negative pressure and close the inlet valve, and then admit air under positive pressure to the chamber, then open the outlet valve to drive the contents of the chamber through the outlet by replacing a significant amount of the contents with air. The controller then causes the air pressure in the chamber to be reduced and closes the outlet valve, and then reconnects the chamber to the source of negative pressure and then opens the inlet valve to commence a second cycle. The inlet and outlet valves are bladder type valves to protect the frail material and permit simplified operation.
572231
Innovac Technology Inc.
Rowley C.a.
LandOfFree
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