Patent US3945582A successfully refreshed from Google Patents.
US3945582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette tape
Assignee: Toshiba Corp
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Filing: 1974-04-24
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Granted: 1976-03-23
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Expires: 1994-04-24
Abstract
Abstract A tape cassette comprises a case open at its top and having a tape-loaded reel rotationally mounted therein, a cover slidably opening and closing the opening of the case in a sidewise direction, and a pair of tape delivery members mounted on the forward portion of the cover to permit the part of the tape to be delivered merely upon withdrawal of the covering.
Inventors
- 👤 Motoi Yagi
- 👤 Morio Akino
- 👤 Hisaharu Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:25
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/04; B; B65; B65H; B65H20/00; B65H20/26; G11B23/00; G11B23/02; G11B23/04; G11B23/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
133 words
A cassette tape comprising: a case; a reel rotatably mounted on the bottom of said case adjacent one end thereof; a cover member slidably mounted on said case for opening and closing the top thereof, said cover member being slidable in one direction away from said one end of said case to expose said reel positioned within said case adjacent said one end thereof and being slidable in an opposite direction for closing said top of said case; and tape delivery means mounted on the inside surface of said cover member on the end thereof in the closed position opposite said one end of said case wherein said reel is rotatably mounted for permitting the tape to be carried outside said case upon sliding movement of said cover member in said one direction.
Claim 2
Dependent Claim
133 words
A cassette tape comprising: a case; a reel rotatably mounted on the bottom of said case adjacent one end thereof; a cover member slidably mounted on said case for opening and closing the top thereof, said cover member being slidable in one direction away from said one end of said case to expose said reel positioned within said case adjacent said one end thereof and being slidable in an opposite direction for closing said top of said case; and tape delivery means mounted on the inside surface of said cover member on the end thereof in the closed position opposite said one end of said case wherein said reel is rotatably mounted for permitting the tape to be carried outside said case upon sliding movement of said cover member in said one direction.
Claim 3
Dependent Claim
33 words
A cassette tape according to claim 1, further including tape tension means for tensioning the tape under a predetermined tension force, except during a tape travelling, to prevent a sagging of the tape.
Claim 4
Dependent Claim
95 words
A cassette tape according to claim 2, in which said tape tension means comprises: an arm pivotable about one end thereof through an axis coincident with the axis of said reel; a roll mounted at the opposite free end of said arm for guiding said tape; an urging member for swingably urging said arm for causing said tape to be tensioned through said roll; and a member for holding the roll in position against the urging force of said urging member during tape travelling, so as to thereby exert no influence on said travelling tape.
Claim 5
Dependent Claim
32 words
A cassette tape according to claim 3, in which said urging member is a spring, one end of which is fixed and the other end of which is connected to the arm.
Claim 6
Dependent Claim
62 words
A cassette tape according to claim 1, in which said tape delivery means comprises a pair of poles mounted at a predetermined interval near the forward end of said cover member opposite said one end of said case and projecting into the interior of the case and each having its free projecting end a flange for preventing the tape from dropping therefrom.
Claim 7
Dependent Claim
64 words
A cassette tape according to claim 1, in which said tape delivery means comprises a pair of tape delivery members mounted at a predetermined interval near the forward end of said cover member opposite said one end of said case and projecting into the interior of the case and each having at its free projecting end an upturned portion defining a tape guide space.
Claim 8
Dependent Claim
57 words
A tape cassette according to claim 1, in which said tape delivery means comprises a pair of arms having respective one ends swingably mounted at a predetermined interval on the cover member and a pair of tape guide poles each mounted at the opposite free end of the arm and projecting into the interior of the case.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |