Appeal No. 1995-2838
Application 07/966,707
This is a decision on appeal under 35 U.S.C. § 134 from
the final rejection of claims 1, 3, and 4.
We affirm-in-part.
BACKGROUND
The disclosed invention is summarized by Appellant in the
Concise Summary of the Invention (Brief, pp. 2-3).
Claim 1 is reproduced below.
1. A tape cassette comprising:
(a) a cassette housing composed of an upper cassette
part and a lower cassette part and which accommodates
therein a pair of tape hubs around which a magnetic tape
is wound;
(b) a slider slidably attached to said cassette
housing so as to open and close a lower surface opening
portion of said cassette housing;
(c) a slider lock portion having an engagement
protrusion and being provided on said lower cassette part
to lock said slider at a predetermined position;
(d) an engagement aperture bored through said slider
for engagement with said slider lock portion having an
inclined portion tapered toward an outside of said slider
formed on one end face of said engagement aperture and
opposing said engagement protrusion of said slider lock
portion provided on said lower cassette part, in which
said engagement protrusion is formed with a complementary
tapered surface for engaging the inclined portion of said
engagement aperture; and
resilient means arranged between said upper cassette
part and said engagement protrusion for spring-biasing
said slider lock portion in a direction in which said
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