Appeal No. 95-5064
Application 08/049,463
a long enough period of time (e.g., 13 ms), the voltage on the
capacitor reaches the threshold voltage (e.g., 20 volts) of a
voltage-sensitive switching device 42, which then quickly
discharges the capacitor through LED 46 in a photo-optic coupler
44. The light pulse emitted by the LED drives the phototransitor
48 in the photo-optic coupler into conduction for about 50 µs,
thereby generating a 5-volt pulse for application to the latch
circuit, which triggers the shut down circuit.
The examiner contends, and Appellant does not dispute,
that it would have been obvious to connect peripheral computer
equipment to the output terminals 18 ("LOW DC") of Konopka's
power supply 16, thereby satisfying the requirement of claim 1
for "an electrical load connected to the source for operation at
an operating voltage above a predetermined level." As a result,
the sole question before us is whether Konopka thus modified
satisfies the remaining limitations of the claim. For the
following reasons, we agree with Appellant that the answer is no,
because Konopka thus modified does not include the claimed "power
storage means connected to the load for supply of said operating
voltage thereto" or the claimed "impedance means connected to the
power storage means for regulating . . . discharge thereof into
the load during said interruption in power of the source."
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Last modified: November 3, 2007