Flow sensor module and controller
OwnerThomas R. Duksainventor
Life of this patent
Estimating the term…
Abstract
A flow sensor module employs a fitting which defines an offset sensor bypass which is disposed at an acute angle to a linear flow path through the fitting. A dynamic pressure or flow sensor is disposed in the sensor bypass. A bonnet assembly is removably mounted to the fitting and mounts the sensor and fluidly seals the sensor in the fitting. A solid state controller has a panel which indicates a number of operational conditions including whether there is fluid flow through the flow system. The panel may have a chemical feed pump default indicator, a control valve indicator and an air trap device indicator and, in one embodiment, a manual override switch to turn on a feed pump, a control valve, an air trap device or an electrically operated device.
Claims19
A flow system comprising:
- first and second aligned linear conduit portions defining a linear flow path;
- a fitting having first and second ends and interposed in said linear flow path between said first and second conduit portions and having a cylindrical input portion and a spaced cylindrical outlet portion and defining an intermediate portion of said linear flow path between said first and second conduit portions and defining a sensor bypass disposed at an acute angle to said linear flow path and defining a first port in said cylindrical input portion and defining a second port in said cylindrical output portion wherein said first and second ports are located between said ends;
- a dynamic pressure or flow sensor disposed in said sensor bypass;
- and
- a bonnet assembly removably mounted to said fitting and mounting said sensor and fluidly sealing said sensor in said fitting.
A sensor module for a linear flow path comprising:
- a fitting comprising longitudinally spaced cylindrical receivers configured to receive first and second conduit portions so as to define a linear flow path between and through said first and second conduit portions and comprising an offset extension defining a sensor bypass disposed at an acute angle to said linear flow path defining a blind hole opposite said extension;
- a dynamic pressure or flow sensor disposed in said sensor bypass and having a shaft with a distal end received in said blind hole;
- and
- an assembly mounted to said offset extension and mounting said sensor and fluidly sealing said sensor in said offset extension.
Dependencies are inferred from the claim text.