Interference No. 104,158
bearing 44 with an axis of rotation parallel to the blade edge
in cartridge 20. We agree with Althaus that the shell bearing
44 is a yoke-like structure. We further agree that the yoke-
like shell bearing 44 and the four-bar linkage are similar
mechanical
elements in the same position in the razor. Inasmuch as Terry
discloses this shell bearing, which has a structure analogous
to the yoke in Kirk, and inasmuch as Terry suggests that the
four- bar linkage is an expedient mechanical substitute for
the yoke-like shell bearing, Althaus’ argument that it would
have been obvious to use the four-bar linkage in Kirk is well
taken.
Terry differs from the subject matter of Oldroyd
claim 9, in that while it shows the claimed four-bar linkage
for mounting a razor cartridge for pivotal movement, the
movement is only about an axis parallel to the blade edge.
Terry does not show pivoting on an axis perpendicular to the
blade edge, nor does Terry show such an axis at or below the
surface to be shaved.
Finally, Ishida discloses a wet shaving razor with a
handle 1 and support arms 8 pivotally mounted to the handle by
12
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