US4004752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cassette
Assignee: Sony Corp
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Filing: 1975-03-26
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Granted: 1977-01-25
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Expires: 1995-03-26
Abstract
Abstract A tape cassette for a magnetic recording and/or reproducing apparatus has at least one reel contained in a housing formed with an opening through which a tape wound on the reel can be withdrawn from the cassette housing for the recording of signals thereon or reproducing the signals therefrom, by one or more rotary magnetic heads, and a lid is provided to normally close the housing opening when the cassette is not in use and thereby to protect the tape from damage. The cassette is provided with a brake member which is responsive to the position of the lid thereby to prevent rotation of the reel when the lid closes the opening and to permit free rotation of the reel when the opening is exposed for use in the recording and/or reproducing apparatus.
Inventors
- 👤 Naoki Kamaya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:27
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08785; G11B15/00; G11B15/675; G11B15/67563; G11B15/67565; G11B23/08735; G11B23/08742
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
A tape cassette comprising: a. a housing of generally rectangular configuration containing at least one reel for a supply of tape and having top and bottom walls and a peripheral wall extending between said top and bottom walls along sides of the housing so as to leave an opening along at least one side of the housing through which the tape can be withdrawn; b. braking means contained in said housing and being normally applied for preventing rotation of said reel; and c. means for releasing said braking means in response to the insertion of said housing into a holder therefor in a selected one of at least two orthogonally related directions one of which directions extends parallel to said one side of the housing.
Claim 2
Dependent Claim
125 words
A tape cassette comprising: a. a housing of generally rectangular configuration containing at least one reel for a supply of tape and having top and bottom walls and a peripheral wall extending between said top and bottom walls along sides of the housing so as to leave an opening along at least one side of the housing through which the tape can be withdrawn; b. braking means contained in said housing and being normally applied for preventing rotation of said reel; and c. means for releasing said braking means in response to the insertion of said housing into a holder therefor in a selected one of at least two orthogonally related directions one of which directions extends parallel to said one side of the housing.
Claim 3
Dependent Claim
60 words
A tape cassette according to claim 1; in which said peripheral wall of the housing has apertures therein respectively located in said one side and in another side contiguous to said one side adjacent a corner of said housing between said one side and said other side, and through which said means for releasing the braking means is selectively actuable.
Claim 4
Dependent Claim
43 words
A tape cassette according to claim 2 wherein said means for releasing said braking means includes a movable latch member adapted to receive a latch release member inserted through either one of said apertures in said one side and in said contiguous side.
Claim 5
Dependent Claim
156 words
A tape cassette, comprising: a housing of generally rectangular configuration containing at least one reel for a supply of tape and having top and bottom walls and a peripheral wall extending between said top and bottom walls along sides of the housing so as to leave an opening along at least one side of the housing through which the tape can be withdrawn; first guide means on a selected one of said top and bottom walls and second guide means on said peripheral wall, said first and second guide means being orthogonal to each other for permitting said housing to be guidedly inserted into a holder in a selected one of two orthogonally related directions; braking means contained in said housing and being normally applied for preventing rotations of said reel; and means for releasing said braking means in response to the insertion of said housing into said holder irrespective of the direction of insertion thereof.
Claim 6
Dependent Claim
156 words
A tape cassette, comprising: a housing of generally rectangular configuration containing at least one reel for a supply of tape and having top and bottom walls and a peripheral wall extending between said top and bottom walls along sides of the housing so as to leave an opening along at least one side of the housing through which the tape can be withdrawn; first guide means on a selected one of said top and bottom walls and second guide means on said peripheral wall, said first and second guide means being orthogonal to each other for permitting said housing to be guidedly inserted into a holder in a selected one of two orthogonally related directions; braking means contained in said housing and being normally applied for preventing rotations of said reel; and means for releasing said braking means in response to the insertion of said housing into said holder irrespective of the direction of insertion thereof.
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) | 1980-01-25 | 1980-07-26 | 1981-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-25 | 1984-07-26 | 1985-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-25 | 1988-07-26 | 1989-01-25 | $7700.00 | Window Closed / Lapsed |