Appeal No. 96-2673
Application No. 07/851,887
This is a decision on appeal from the final rejection of
claims 15 through 43, all of the claims pending in the
application.
The invention pertains to an inverter driven gas discharge
lamp arrangement.
Representative independent claim 15 is reproduced as
follows:
15. An arrangement comprising:
a pair of power line terminals at which is provided a power
line voltage;
rectification and filtering circuitry connected with the
power line terminals and operative to provide a DC supply voltage
at a set of DC terminals; the absolute magnitude of the DC supply
voltage being substantially constant; and
inverter and load circuitry connected with the DC terminals
and operative to provide an AC voltage at a pair of AC terminals
with which is connected a gas discharge lamp; thereby to cause an
alternating lamp current to flow through the lamp; the
alternating lamp current having a peak magnitude and an RMS
magnitude; the AC voltage being of a frequency substantially
higher than that of the power line voltage on an ordinary
electric utility power line; the inverter and load circuitry
being additionally characterized by causing the peak magnitude of
the alternating lamp current to be distinctly lower than twice
its RMS magnitude.
The examiner relies on the following references:
Elms 3,733,541 May 15, 1973
Nilssen 4,513,364 Apr. 23, 1985
Nilssen 4,857,806 Aug. 15, 1989
Nilssen 5,047,690 Sep. 10, 1991
Claims 15 through 17 and 32 through 43 stand rejected under
35 U.S.C. ' 112, first paragraph, as relying on an inadequate
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