F - Mech Eng,Light,Heat,Weapons – 04 – F
Patent
F - Mech Eng,Light,Heat,Weapons
04
F
302/25
F04F 5/20 (2006.01) F04F 1/02 (2006.01)
Patent
CA 1185299
ABSTRACT OF THE DISCLOSURE A fluid flow control device includes a first fluid flow passageway, a fluid inlet into the first pas- sageway, a fluid outlet from the first passageway, a second fluid flow passageway in flow communication with the first passageway, and a fluid flow-through opening in fluid flow communication with the second passageway. The fluid flow control device is controlled to selectively provide, alter- natively, a vacuum or a pressure condition at the flow- through opening. A pneumatic transfer system is also dis- closed for alternately transferring a batch of particulate material from a storage area to a batching vessel, and for transferring the particulate material from the batching vessel to a remote location. The system includes a single blower having its high pressure side in flow communication with the fluid flow control device for selectively provid- ing both vacuum and pressure conditions in the batching vessel to effect the selected transferring of particulate material into and out of the batching vessel. A gas separa- tion filter device is provided for separating particulate material from the conveying fluid when the batching vessel is being filled, and which is back flushed of entrained particulate material when the batching vessel is being emptied.
393438
Freeman Billy P.
Miller David L.w.
Free Flow Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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