US4386746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape cassette
Assignee: TDK Corp
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Filing: 1980-11-26
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Granted: 1983-06-07
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Expires: 2000-11-26
Abstract
Abstract A recess for positioning a magnetic tape cassette inserted in a deck is formed near a corner of a guard panel, a small projection is formed on at least one of an inner surface of the guard panel or a front surface of a casing near the side edge of the magnetic tape. A tape guide shaft is fixed inside of a casing so as to place the surface of the tape guide slightly behind the level of the front surface of the casing.
Inventors
- 👤 Masatoshi Okamura
- 👤 Haruo Shiba
- 👤 Kimio Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:12
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08735
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A magnetic tape cassette comprising: a housing having a first end including a surface defining a tape travel path; a guard panel movably attached to said housing and positionable in a closed position to protect tape travel path; a recess at one corner of said guard panel for positioning said cassette in a deck; a tape guide in one corner of said housing corresponding to said one corner of said guard panel; and a projection formed on at least one of said one corner of said guard panel and said surface of said housing, said projection extending towards, and contacting, the other of said guard panel and housing when said guard panel is in said closed position; whereby said projection maintains said guard panel spaced from said tape guide and said tape travel path.
Claim 2
Dependent Claim
134 words
A magnetic tape cassette comprising: a housing having a first end including a surface defining a tape travel path; a guard panel movably attached to said housing and positionable in a closed position to protect tape travel path; a recess at one corner of said guard panel for positioning said cassette in a deck; a tape guide in one corner of said housing corresponding to said one corner of said guard panel; and a projection formed on at least one of said one corner of said guard panel and said surface of said housing, said projection extending towards, and contacting, the other of said guard panel and housing when said guard panel is in said closed position; whereby said projection maintains said guard panel spaced from said tape guide and said tape travel path.
References Cited (Backward Citations)
US4004752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-06 | 1986-12-06 | 1987-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-06 | 1990-12-06 | 1991-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-06 | 1994-12-06 | 1995-06-07 | $7700.00 | Window Closed / Lapsed |