Appeal No. 1998-2610 Page 9
Application No. 08/451,950
the plate 8 as having a diameter greater that of the earplug
4. Figs. 28 and 29.
Another embodiment of the earphone "comprises an earplug
4 and an exciter 5M which are held out of contact with each
other." Col. 12, ll. 19-21. "The earplug 4 is in the shape
of a rod or cylinder, and made of a sound insulating material
such as an elastic foamed polymer, e.g., urethane foam." Id.
at ll. 24-26.
"The earplug 4 includes a circular vibratory plate 6 attached
to its outer end remote from the inner end to be inserted in
the external auditory meatus of an ear ...." Id. at ll. 29-
32. Although [t]he vibratory plate 6 is made of a metal or
magnetic
material such as iron," id. at ll. 32-34, the plate is not
very small vis-à-vis the earplug. To the contrary, "the
vibratory plate 6 ha[s] a diameter which is substantially the
same as that of the earplug 4." Id. at ll. 31-32.
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