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US 9,435,682 B2Granted
Systems and methods for remote testing of a flow switch
AssigneePotter Electric Signal Company, LLC
InventorsDavid L. Royse, Richard L. Ulrich, Bruce LaRue, Timothy Decker
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Abstract
Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane.
Claims7
A method of detecting the presence of a paddle in a flow detector system, the method comprising:
- providing a flow detector system including:
- a trip stem biased to a first position;
- an arm used to displace said trip stem from said first position to a second position;
- and
- a position sensor identifying when said trip stem is located in at least one of said first position or said second position;
- moving said trip stem between said second position and said first position;
- measuring a force applied to said trip stem during said moving;
- and
- from said force, determining if a paddle is attached to said trip stem.
6 more elements
Dependencies are inferred from the claim text.