Patents by Inventor Gerald Earl Bowman

Gerald Earl Bowman 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).

  • In-line venturi
    Patent number: 6250324
    Abstract: An apparatus for inserting a venturi tube having an inlet, an aspirator inlet and an outlet directly within a fluid flow stream, with the aspirator inlet not in contact with the fluid flow stream is disclosed. A plate having a first aperture leading to the venturi inlet, and a series of second apertures both supports the venturi within a conduit and divides the fluid flow stream into a first stream which flows through the venturi tube and a second stream which flows around the venturi tube. A variety of adjusting mechanisms are disclosed for varying the cross sectional area of the second apertures relative to the cross sectional area of the venturi tube. The apparatus is adapted to allow the back pressure within the venturi tube (which increases as the fluid flow rate increases) to force an increasing proportion of the flow stream to flow around the venturi tube in order to maintain a relatively constant aspiration rate within the venturi tube.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: June 26, 2001
    Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad, Richard Stanley Phillips, Andrew Richard Henry Phillips, Gerald Earl Bowman, Michael John Preston
  • In-line venturi
    Patent number: 5934328
    Abstract: An apparatus for inserting a venturi tube having an inlet, an aspirator inlet and an outlet directly within a fluid flow stream, with the aspirator inlet not in contact with the fluid flow stream is disclosed. A plate having a first aperture leading to the venturi inlet, and a series of second apertures both supports the venturi within a conduit and divides the fluid flow stream into a first stream which flows through the venturi tube and a second stream which flows around the venturi tube. A variety of adjusting mechanisms are disclosed for varying the cross sectional area of the second apertures relative to the cross sectional area of the venturi tube. The apparatus is adapted to allow the back pressure within the venturi tube (which increases as the fluid flow rate increases) to force an increasing proportion of the flow stream to flow around the venturi tube in order to maintain a relatively constant aspiration rate within the venturi tube.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: August 10, 1999
    Assignee: T I Properties, Inc.
    Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad, Richard Stanley Phillips, Andrew Richard Henry Phillips, Gerald Earl Bowman, Michael John Preston
  • In-line venturi
    Patent number: 5676173
    Abstract: An apparatus for inserting a venturi tube having an inlet, an aspirator inlet and an outlet directly within a fluid flow stream, with the aspirator inlet not in contact with the fluid flow stream is disclosed. A plate having a first aperture leading to the venturi inlet, and a series of second apertures both supports the venturi within a conduit and divides the fluid flow stream into a first stream which flows through the venturi tube and a second stream which flows around the venturi tube. A variety of adjusting mechanisms are disclosed for varying the cross sectional area of the second apertures relative to the cross sectional area of the venturi tube. The apparatus is adapted to allow the back pressure within the venturi tube (which increases as the fluid flow rate increases) to force an increasing proportion of the flow stream to flow around the venturi tube in order to maintain a relatively constant aspiration rate within the venturi tube.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: October 14, 1997
    Assignee: T I Properties, Inc.
    Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad, Richard Stanley Phillips, Andrew Richard Henry Phillips, Gerald Earl Bowman, Michael John Preston