Electricity: circuit makers and breakers – Fluid pressure – Flow-responsive type
Reexamination Certificate
2006-09-12
2006-09-12
Friedhofer, Michael A. (Department: 2832)
Electricity: circuit makers and breakers
Fluid pressure
Flow-responsive type
Reexamination Certificate
active
07105756
ABSTRACT:
A flow switch includes a straight, rigid paddle arm and a hub formed mid-length of the paddle arm. An elongate cylindrical member and an elongate paddle handle are formed integrally with the hub and extend from the hub in opposite radial directions. A cylindrical magnet is disposed within a hollow interior of the cylindrical member. A flat paddle is formed integrally with the elongate paddle handle at a radially outermost end of the paddle handle. A transparent top housing houses a flat magnet that attracts the cylindrical magnet and causes the paddle arm to pivot into a position of repose. The cylindrical magnet pivots away from the position of repose into close proximity with a reed switch when the strength of the fluid flow exceeds the magnetic attraction. The reed switch is housed in the top housing in diametrically opposed relation to the flat magnet.
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Friedhofer Michael A.
Plastic Magen, LP
Smith Ronald E.
Smith & Hopen , P.A.
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