Appeal No. 2006-2390
Application No. 10/659,817
Stankiewicz to include a beveled end. It is noted that the
beveled ended connection (49) is a part of the sealing plate
used to attach the porous ceramic filter cylinders to the
holding furnace. Thus, the beveled edge (49) is present for the
purpose of mounting. Including a beveled edge in the cylinder
29 would not provide such a function.
Stankiewicz discloses the molten metal flows through the
porous ceramic filter material through the sealing plate to be
further flowed downstream ultimately to casting molds. (Col. 3,
ll. 31-35). Stankiewicz relies on gravity for the flow of the
molten metal (col. 4, ll. 6-9). According to Appellants
(specification, p. 3) a dosing tube is also known in the art as
a suction tube. The presently claimed invention describes
filter elements that are attached to this dosing tube (suction)
for moving the molten metal through the filter body. Thus, the
filtering apparatus of Stankiewicz and the present claims are
not substantially the same. The Examiner has not provided
adequate motivation to suggest modifying the Stankiewicz filter
apparatus to meet the apparatus described by independent claims
1, 4, and 13.
4
Page: Previous 1 2 3 4 5 6 Next
Last modified: November 3, 2007