Pumps – With signal – indicator – or inspection means
Reexamination Certificate
2006-02-21
2006-02-21
Koczo, Jr., Michael (Department: 3746)
Pumps
With signal, indicator, or inspection means
C417S477100
Reexamination Certificate
active
07001153
ABSTRACT:
A pump leak monitor for use with a peristaltic pump comprises a pump housing and a pair of electrical contacts disposed along a bottom end of the pump housing. The electrical contacts are located such that the contacts are immersed in fluid when the pump is leaking. The fluid conducts electricity across the contacts and thereby closes an electrical circuit for providing an indication that a leak has been detected. By measuring an electrical parameter in the circuit, the pump leak monitor is capable of measuring the conductivity of the fluid in the pump housing. As a result, the pump leak monitor is capable of differentiating between different types of fluid.
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McDowell William M.
Nguyen John T.
Blue-White Industries
Knobbe Martens Olson & Bear LLP
Koczo, Jr. Michael
LandOfFree
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