Patents by Inventor Billy P. Freeman

Billy P. Freeman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4422833
    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.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: December 27, 1983
    Assignee: Free Flow, Inc.
    Inventors: David L. W. Miller, Billy P. Freeman
  • Patent number: 4005908
    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.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: February 1, 1977
    Inventor: Billy P. Freeman