Appeal No. 1998-2148
Application 08/764,783
view thereof.
Claim 2
Appellants indicate that Postma is silent about the
shape of the plasma. Appellants claim their coil generates a
cylindrical plasma. This is so because Appellants’ coil is
cylindrical. Since Postma’s coil is also cylindrical, Postma
inherently generates a cylindrical plasma.
Claim 3
Appellants note that Postma makes no disclosure
concerning either the height of the coil or the diameter of
the coil and especially the ratio of the height of the coil
relative to the diameter of the coil (H /D ). Appellants’
coilcoil
claim recites a height to diameter coil ratio of “between
about 0.5 and 5.” Postma discloses a coil height of 12 mm
(column 3, lines 61-63). Postma’s magnetic core is about 8 mm
in diameter (column 3, line 50) and the coil 5 is wound around
the magnetic core and thus must be slightly larger in diameter
than 8 mm.
Consequently, the ratio of Postma’s coil height to diameter is
12/slightly more that 8 mm. This translates to about 1.5,
10
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