Appeal No. 2001-0092 Page 7
Application No. 09/033,145
A line 14 conducts the oil pumped out of tank 1 to a central
oil-supply system 30 (see Figure 2).
Krambs teaches (column 4, lines 28-43) that should the
lubrication oil supplied through the connection line 2 contain
water, which might happen, for example, as a result of a leak
in a cooling-water line, the water will collect in the lower
region of the oil tank 3. If the leak entails just a few
drops of water, these drops may remain in the oil tank 3 over
a lengthy period of time without there being any detriment to
the system. If, however, the quantity of water in the oil
tank 3 rises to a predefined level, a sensor 15 generates a
signal that
disables the circuit of the motor 11 and that simultaneously
generates a warning signal so that the printer, or other
personnel, is able to detect and remedy the potentially
damaging situation in the water supply. The small oil tank 3
is then emptied and the system is returned to normal
operation.
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