Appeal No. 1997-2305
Application 08/451,459
USPQ 464, 466 (CCPA 1976). Appellant does not define
“magazine” in the specification. According to the dictionary
definition set forth above, Eldridge’s clamping screw and
associated carbon carrier (25) can reasonably be considered to
be a magazine because they form a compartment attached to a
machine for storing a necessary material (carbon anode 14).
The clamping screw and carbon carrier are capable of moving
carbon anode 14 downward into an electrical arc (page 2, lines
102-108; page 3, lines 81-89).
Concerning claims 26 and 27, appellant argues that
Eldridge does not disclose graphite as the material of
construction of the electrodes (brief, page 8). Because
electrical conductivity is a desirable characteristic of
Eldridge’s carbon electrodes (page 3, lines 76-81), the
reference would have led one of ordinary skill in the art to
make the electrodes out of the graphite crystalline allotropic
form of carbon due to its high electrical conductivity.3
3See The Condensed Chemical Dictionary 422 (Van Nostrand
Reinhold, 9th ed. 1977).
8
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
Last modified: November 3, 2007