Appeal No. 1996-1456
Application No. 08/059,840
Independent claim 15 lacks the 10% to 30% by weight filler
limitation set forth in claims 1, 21 and 26, but does require (1)
a plurality of projection members extending from one surface of
each casing member which are respectively aligned when the casing
members are contacted together for welding and (2) means indented
on the other surface of at least one casing member to receive a
welding horn for transmission of an application of ultrasonic
energy to the contacted surfaces of the projection members.
Implicitly acknowledging the lack in Hitachi Maxell and Kato of
any teaching or suggestion of a recording medium cartridge having
these features, the examiner turns to Kita and Young.
Kita discloses a tape cassette case composed of upper and
lower half cases formed of, for example, ABS resin. The half
cases include complementary projections (see Figures 6 through
24) which are adapted to be abutted and ultrasonically welded
together by energy supplied from a welding horn 80 applied
against the rear surface of one of the half cases (see Figures 10
through 24). The welding projections are particularly configured
to avoid problems caused by excess melted resin and resin
particles generated during the welding operation (see column 4,
line 59 et seq.).
Young discloses a tape cassette having upper and lower
casing half members which can be assembled without the use of
screws. To this end, the lower half member includes at each
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