Appeal No. 1998-1885
Application No. 07/914,359
Looking first to appellants’ disclosure, what is termed a
“typical” power supply apparatus for supplying electric power
to heating elements of an automobile is illustrated in Figure
14. The apparatus of Figure 14 includes a power supply means
(1, 2), a heater (3) and a switch (5), with the heater (3)
being connected between the power supply means (1, 2) and the
switch (5), and with the opposite side of the switch (5) being
connected to ground. Appellants state (specification,
paragraph spanning
pages 8-9) that a drawback of this arrangement is that if the
heater is short-circuited, power is continuously supplied to
the heater irrespective of the on/off condition of the switch,
thus resulting in useless consumption of electric power.
An objective of appellants is to provide a power
supplying apparatus that is intended to prevent wasteful power
consumption even if the heater is short-circuited
(specification, page 6). To this end, the elements of
appellants’ apparatus are arranged such that the switch (5) is
connected between the power supply means (1, 2) and the heater
(3), with the opposite side of the heater (3) being connected
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