Fluid handling – Systems – Programmer or timer
Patent
1995-10-05
1996-10-22
Lee, Kevin
Fluid handling
Systems
Programmer or timer
251304, 251 89, 137551, F17D 300, F16K 3112
Patent
active
055667155
ABSTRACT:
A flood prevention valve including a rotary valve assembly having an input line, an output line, a rotating valve vane including an internal magnetic coupling ring affixed to the rotating valve vane, an external magnetic coupling ring having a coupling gear secured concentrically thereto, and a gearing linkage having at least one linking gear enmeshed with the coupling gear; a gear stop mechanism including a solenoid having a stop member positionable by the solenoid in a manner such that the stop member engages and prevents a linking gear from rotating in response to a first electrical signal to the solenoid and disengages and allows a linking gear to rotate in response to a second electrical signal to the solenoid, a timer circuit having a magnetic sensor capable of detecting rotation of the internal magnetic coupling ring; a timing circuit for timing the rotation intervals of the internal magnetic coupling ring; and, an output circuit in electrical connection with the solenoid that puts out a first predetermined signal to the solenoid when a predetermined rotation interval has been exceeded.
REFERENCES:
patent: 4600032 (1986-07-01), Heyl
patent: 4708264 (1987-11-01), Bruninga
patent: 4807664 (1989-02-01), Wilson et al.
patent: 5287884 (1994-02-01), Cohen
patent: 5316035 (1994-05-01), Collins et al.
Breaux Joseph N.
Lee Kevin
LandOfFree
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