Appeal 2006-2137 Application 10/375,748 to “a press for separating liquids from slurries and sludges and compacting the solid materials…” See column 1, lines 15-17. This press is said to include a solid cylindrical anvil ram having a plurality of small liquid- conducting passages corresponding to the claimed die punch design. See column 4, lines 20-63. We find that MacMurray further teaches (col. 2, ll. 14-21) that: It is an object of my invention to provide a press for simultaneously dewatering and compacting aqueous slurries and sludges and the like without exposing the solids to air. Another object is to provide a press of such character that can be operated rapidly in a substantially continuous manner. A further object is to provide a press that is relatively simple and strong in construction and simple in operation. Thus, we concur with the Examiner that one of ordinary skill in the art would have been led to employ the press having the claimed punch design taught by MacMurray to carry out the dewatering and compacting step taught by Parker, motivated by a reasonable expectation of successfully obtaining the advantages stated above. Parker clearly teaches employing a press to remove water from its slurry. The Appellant appears to argue that MacMurray is not analogous prior art, thus implying that it is improperly combined with Parker and Tabe. Reply Br. 1-2. We do not agree. Although as argued by the Appellant at pages 1 and 2 of the Reply Brief, MacMurray is particularly interested in “dewatering of sludges and slurries composed essentially of a mixture of finely-divided lead and about 3% or more by weight of water…,”1 it clearly indicates that its press is directed to separating liquids from any slurries and 1 MacMurray does not exclude slurries having the amount of water taught by1 Parker. 8Page: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007