Billy Harold Freeman

US Patent:

44228333, Dec 27, 1983

Filed:

May 11, 1981

Appl. No.:

6/262121

Inventors:

David L. W. Miller - Knoxville TN
Billy P. Freeman - Blaine TN

Assignee:

Free Flow, Inc. - Blaine TN

International Classification:

F04F 520
F04F 552

US Classification:

417183

Abstract:

A fluid flow control device includes a first fluid flow passageway, a fluid inlet into the first passageway, 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, alternatively, a vacuum or a pressure condition at the flow-through opening. A pneumatic transfer system is also disclosed 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 providing 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 separation 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.

US Patent:

40059081, Feb 1, 1977

Filed:

Feb 3, 1975

Appl. No.:

5/546422

Inventors:

Billy P. Freeman - Blaine TN

International Classification:

B65G 5328

US Classification:

302 3

Abstract:

A system for transferring a batch of particulate material from a storage area to a remote depository, including a storage vessel connected to a batching vessel, and a single pump providing both vacuum and pressure conditions for conveying the particulate material. In a preferred embodiment there is provided a control circuit responsive to the quantity of the particulate material in the batching vessel for regulating the system.