US Patent 10323969 Fluid signaling device

A fluid sensing device, including a housing; a fluid flow sensor at least partially contained within the housing and adapted to detect a flow of fluid through the housing; a timer operably connected to the fluid flow sensor and at least partially contained within the housing, the timer receiving a start signal from the fluid flow sensor when the fluid flow sensor detects the onset of fluid flow, the timer receiving a stop and reset signal from the fluid flow sensor when the fluid flow sensor detects the end of fluid flow; and at least one signaling device operably connected to the timer such that the signaling device is actuated when the timer indicates that a predetermined amount of time has elapsed.