Patent US3934841A successfully refreshed from Google Patents.
US3934841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape drive
Assignee: Papst Licensing GmbH and Co KG
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Filing: 1974-12-02
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Granted: 1976-01-27
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Expires: 1994-12-02
Abstract
Abstract A tape drive system for a cassette tape recording and/or reproducing apparatus has at least three drive motors, two for driving the tape spools and at least a third for driving a tape drive capstan. two of the motors are disposed so as to engage the cassette from one side thereof, while the other motor or motors is or are disposed so as to engage the cassette from the other side. The motor or motors at a first side of the cassette is or are disposed in a main housing, while the other motor or motors at the second side of the cassette is or are in a casing portion that is pivotable or linearly displaceable relative to the main housing, for insertion or removal of a cassette. The apparatus can have a dual capstan tape drive.
Inventors
- 👤 Edgar Zuckschwert
- 👤 Georg Friedrich Papst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:10
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/32; G11B15/675; G11B15/67581; G11B15/67584; G11B25/00; G11B25/06; G11B25/063
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
152 words
A tape drive system for a recording and/or reproducing apparatus for a tape cassette having two tape spools one beside the other, comprising: a main housing; a movable casing portion connected to the main housing whereby a cassette-receiving space is provided between the main housing and the casing portion, the casing portion being displaceable relative to the main housing for exchanging a said cassette received in use in said space; tape winding motors for engaging the tape spools of a said cassette received in said space; at least one tape drive capstan; and at least one capstan drive motor driving the respective capstan to drive the tape, at least one of the motors being disposed in the casing portion for operatively engaging said received cassette from one side thereof, and the other motor or motors being disposed in the main housing for operatively engaging said received cassette from the other side thereof.
Claim 2
Dependent Claim
152 words
A tape drive system for a recording and/or reproducing apparatus for a tape cassette having two tape spools one beside the other, comprising: a main housing; a movable casing portion connected to the main housing whereby a cassette-receiving space is provided between the main housing and the casing portion, the casing portion being displaceable relative to the main housing for exchanging a said cassette received in use in said space; tape winding motors for engaging the tape spools of a said cassette received in said space; at least one tape drive capstan; and at least one capstan drive motor driving the respective capstan to drive the tape, at least one of the motors being disposed in the casing portion for operatively engaging said received cassette from one side thereof, and the other motor or motors being disposed in the main housing for operatively engaging said received cassette from the other side thereof.
Claim 3
Dependent Claim
16 words
Apparatus according to claim 1 wherein said casing portion is pivotal relative to said main housing.
Claim 4
Dependent Claim
17 words
Apparatus according to claim 1 wherein said casing portion is linearly displaceable relative to said main housing.
Claim 5
Dependent Claim
16 words
Apparatus according to claim 1, wherein said tape winding motors are disposed in said casing portion.
Claim 6
Dependent Claim
32 words
Apparatus according to claim 2 including within said main housing a support plate on which said casing portion is pivoted and to which said at least one capstan drive motor is secured.
Claim 7
Dependent Claim
60 words
Apparatus according to claim 1, said casing portion being pivotal relative to said main housing and said tape winding motors being disposed in said casing portion, wherein the pivotal axis of the casing portion lies in the plane of symmetry of the tape, when said tape cassette is fitted into its position of driving engagement with said tape winding motors.
Claim 8
Dependent Claim
23 words
Apparatus according to claim 6 wherein said pivotal axis is parallel to a plane passing through the axes of the tape winding motors.
Claim 9
Dependent Claim
51 words
Apparatus according to claim 1 wherein said casing portion is a squared casing whose base surface is only slightly greater in its dimensions than the length and breadth of said tape cassette, whereby the casing covers the cassette when the casing portion is in its position for operation of the apparatus.
Claim 10
Dependent Claim
36 words
Apparatus according to claim 8 wherein said casing portion is in its said position for operation said casing portion is aligned with the surface of portions of the main housing which project beside said casing portion.
Claim 11
Dependent Claim
120 words
Apparatus according to claim 3 including a cassette-receiving assembly having a slot for receiving the cassette, the assembly being linearly movable substantially parallel to the axes of rotation of the winding motors and of said at least one capstan, the assembly being mounted at a spacing from winding hubs of the winding motors and said at least one capstan such that in a rest condition of the assembly a said cassette can be inserted into said slot, relative movement between the cassette-carrying assembly, the winding hubs and said at least one capstan, in the direction of the axes of the motors, bringing the winding hubs and said at least one capstan into engagement with the cassette from respective sides thereof.
Claim 12
Dependent Claim
39 words
Apparatus according to claim 1 and including two said tape drive capstans and two said capstan drive motors, wherein a respective capstan drive motor and a respective tape winding motor are provided in each side of the cassette-receiving space.
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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |