Patents by Inventor Leslie H. Southwell

Leslie H. Southwell 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).

  • Apparatus for measuring fluid flow in pipe systems
    Patent number: 4470311
    Abstract: An elbow for a pipe system and through which fluid of the system flows. One or more thermistors located so as to sense the temperature differential between points on opposite curved sides of the elbow resulting from different fluid velocities in the fluid flowing past these points. The one or more heated thermistors are connected in a wheatstone bridge so that the bridge measures the temperature differential between the two points.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: September 11, 1984
    Inventor: Leslie H. Southwell