Appeal No. 1998-0256 Application No. 08/395,768 slide about or work loose." As additionally described in the specification (page 14), The combined actions of the clamping forces described above applied to the dam body member 50 and the frictional forces between the interengaged locking screws 66 and undercut surfaces 42 cause the dam assembly 14 [to] be reliably, securely and tightly clamped within the liquid conduit groove 34. As to the "preferred embodiment" of the invention (specification, page 7) appellant addresses "short locking screws" mounted within tapped "bores" with the screws being advanced into interfering engagement with inwardly facing "undercut surfaces" (Fig. 7). As a "modification" (specification, pages 7 and page 8, and pages 16 and 17), appellant describes short locking "pins" to be driven through dam member "bores" into interfering engagement with inwardly- facing "undercut surfaces" (Fig. 8). In the specification (page 17), relative to both embodiments (Figs. 7 and 8), appellant expressly indicates that a simple tool such as a screw driver or punch used to engage the exposed "heads" of the locking "screws or pins" is "all that is needed to effectuate the clamping of the dam assembly in place." 6Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 3, 2007