Appeal No. 1999-0020 Page 4
Application No. 08/641,021
by the furnace operator (column 6, lines 2-6). Chadshay does not disclose the details of the
mounting structure for tiltably mounting the nozzles (9) to the furnace walls.
Newman discloses a mounting and linkage system for mounting an air discharge device
(32, 56) to a wall of a furnace in such a manner that the air discharge device may be tilted
upwardly and downwardly relative to the furnace walls, the mounting and linkage system
comprising a pair of U-shaped mounting plates (28a, 28b) and either a pair of mounting pins or
rods (34a, 34b) or, in the alternative, a single pin (80) which extends between the mounting
plates. The examiner contends that it would have been obvious to provide a mounting structure
as taught by Newman, comprising a pair of U-shaped mounting plates and a shaft extending
through an opening in the nozzle housing, to tiltably mount the nozzles (9) of Chadshay to the
furnace walls.
Even if Chadshay were modified to provide a mounting structure as taught by Newman
for mounting the nozzles (9) of Chadshay to the furnace walls so as to permit vertical tilting of
the nozzles relative to the walls, the modified device would still not result in the invention
recited in claim 11. Specifically, claim 11 requires that the damper blade be mounted in the
housing and a mounting member for mounting the housing to the furnace wall for pivotal
movement. The dampers (flappers 25, 26, 27) of Chadshay are not mounted in the pivotally
mounted housing (nozzle 9), as required by the claim. Rather, the Chadshay dampers are
mounted in the transition section (15), which is not disclosed as being mounted for pivotal
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007