Appeal No. 97-0970
Application 08/307,348
axially away from the port plate 36,” rotating 90 degrees
about the longitudinal housing assembly axis (70) and then
shifting
back into engagement with the port plate (36). In the
paragraph bridging pages 15 and 16 of appellant’s
specification, it is again emphasized that the valve member
(24) is unseated and shifted axially away from the port plate
(36), with the result that the valve member is “freely
rotatable relative to the guide member 72 and slide 102 so
that negligible frictional resistance to valve member rotation
about the axis 70 exists.” Like appellant, we note that there
is nothing in the disclosure of the Van Allen patent
concerning the valve member (38) therein being “unseated” in
the manner required in appellant’s disclosed and claimed
invention, i.e., there is nothing in Van Allen from which
to conclude that the patent discloses anything other than
merely
reducing the down force applied to the valving member and
rotating the valving member while the reduced force is applied
to it and the seal desired in Van Allen (col. 2, lines 32-35)
is maintained.
8
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
Last modified: November 3, 2007