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US 4,063,370 AGranted
Tape cassettes having indications for blind use
AssigneeOlympus Optical Co., Ltd.
InventorShoichi Saito
Life of this patent
Estimating the term…
Abstract
A tape cassette is provided with a recess or projection indicative of the front or rear side of the cassette, the playing time of the tape contained, the running speed of the tape or the like, which recess or projection is disposed along the peripheral edge of a window formed in a label applied to either surface or to both surfaces of the cassette and which can be utilized for tactile determination of the front or rear side of the cassette, the kind of the tape contained or the like by the blind.
Claims9
A tape cassette having at least one finger readable marking, comprising:
- a tape cassette having at least one major surface;
- a transparent window formed in said at least one major surface, said transparent window being located at a position relative to the position of a magnetic recording tape housed in said cassette which will permit viewing of the movement of at least a portion of said tape in said cassette;
- a label applied to said at least one major surface of said cassette, said label having an opening therein, said opening being defined by inner peripheral edges of said label and overlapping said transparent window a sufficient amount to permit viewing of the movement of at least a portion of said tape, said label also including at least one finger readable tape-identifying indicia formed along and defined by said inner peripheral edges of said label, the shape and number of said at least one finger readable indicia being indicative of some quality of said tape such as the total playing time or running speed thereof.
Dependencies are inferred from the claim text.