Appeal No. 95-0143
Application 07/865,849
Claim 10 also stands rejected under 35 U.S.C. § 103 as being
unpatentable over Clark and Todd. Appellants argue that there is
no suggestion or motivation present in the prior art to modify
the Todd key so that the key provides power to the lock
arrangement as taught by Clark.
Appellants argue on page 17 of the brief that the Todd
arrangement already includes a power supply for the lock so there
would be no reason to modify Todd. We disagree.
Clark teaches in column 2, line 33, that the key includes a
power supply 20. Clark teaches in column 2, lines 61-62, that
the electrical power is provided from the key to the lock via
line 40 shown in Figure 1. Clark teaches in column 3, lines 9-
15, that the key powers the lock when it is not convenient to
provide a power supply for the lock. Clark teaches in column 2,
lines 22-32, that one such application is a lock system for
parking meters where it would be difficult to provide a power
supply to each meter.
Todd teaches on page 1 that their invention provides a
small, economical and easily installed conversion kit for
conventional types of mechanical device locks which greatly
increases the security of the conventional lock at a fraction of
the cost. Todd further teaches that the applications for the
15
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