US4453683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape cassette arrangements
Assignee: Emtec Magnetics GmbH
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Filing: 1980-12-03
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Granted: 1984-06-12
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Expires: 2000-12-03
Abstract
Abstract A cassette system for any type of recording medium in strip or tape form, such as films and magnetic tapes, consists essentially of a housing whose external dimensions match those of a conventional type of cassette, and a protective holder for the recording medium which is wound into at least one roll. The housing and the holder are separate or separable members and can be fitted together. Both are provided with means for inserting the holder into the housing in the correct position, and for introducing the recording medium into the transport apparatus. The housing is provided with opening and closing means. The holder can be designed to be separable from the roll of recording medium. Preferably, the housing is a precision-made article and the holder a low-cost article.
Inventors
- 👤 Karl-Juergen Reimer
- 👤 Dietmar Pfefferkorn
- 👤 Eberhard Koester
- 👤 Norbert Kreimes
- 👤 Wilhelmus Andriessen
- 👤 Herbert Wagner
- 👤 Werner Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:13
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
30 words
A cassette arrangement for a recording medium in strip or tape form, particularly a magnetic tape, for use with a recording and/or playback apparatus having drive means and scanning means,
Claim 2
Dependent Claim
30 words
A cassette arrangement for a recording medium in strip or tape form, particularly a magnetic tape, for use with a recording and/or playback apparatus having drive means and scanning means,
Claim 3
Dependent Claim
175 words
said cassette arrangement comprising two separate components, namely an approximately rectangular outer cassette housing and an inner protective reel-holder, said cassette housing having a bottom part and a lid part, having openings for admitting said drive means and scanning means and, in one of said openings which is located adjacent the front of said housing, guide means for said recording medium, and also having guiding and holding rails in said lid and/or bottom parts for internally receiving, when said housing is open, said reel-holder, and to position said holder with respect to the tape guide means, and said reel-holder being in the form of a substantially closed, flat container the interior of which, circumferentially, is bordered by at least three side walls, and said holder accommodating the hub or hubs on which said recording medium is wound to form said reel or reels, in a location or locations such as to permit, in cooperation with said guiding and holding rails, introduction of said reel(s) into the open cassette housing in the correct position for operation.
Claim 4
Dependent Claim
175 words
said cassette arrangement comprising two separate components, namely an approximately rectangular outer cassette housing and an inner protective reel-holder, said cassette housing having a bottom part and a lid part, having openings for admitting said drive means and scanning means and, in one of said openings which is located adjacent the front of said housing, guide means for said recording medium, and also having guiding and holding rails in said lid and/or bottom parts for internally receiving, when said housing is open, said reel-holder, and to position said holder with respect to the tape guide means, and said reel-holder being in the form of a substantially closed, flat container the interior of which, circumferentially, is bordered by at least three side walls, and said holder accommodating the hub or hubs on which said recording medium is wound to form said reel or reels, in a location or locations such as to permit, in cooperation with said guiding and holding rails, introduction of said reel(s) into the open cassette housing in the correct position for operation.
Claim 5
Dependent Claim
41 words
A cassette arrangement as claimed in claim 1, wherein said reel-holder includes bottom and top parts which are removable from each other, both of said parts being detached from said reel(s) as said reel is (reels are) introduced into said housing.
Claim 6
Dependent Claim
35 words
A cassette arrangement as claimed in claim 1, wherein said cassette housing, together with the guide means thereon is formed of a material insuring closer tolerances than the material from which the reel-holder is formed.
Claim 7
Dependent Claim
23 words
A cassette arrangement as claimed in claim 1, wherein there are provided connecting means for pivotally connecting said lid and bottom parts together.
Claim 8
Dependent Claim
22 words
A cassette arrangement as claimed in claim 4, wherein there are provided connecting means for pivoting said lid about a horizontal axis.
Claim 9
Dependent Claim
23 words
A cassette housing as claimed in claim 4, wherein there are provided connecting means for pivoting said lid part about a vertical axis.
Claim 10
Dependent Claim
29 words
A cassette arrangement as claimed in claim 4, wherein said guide means for the recording medium are provided on only one of said two parts of the cassette housing.
Claim 11
Dependent Claim
47 words
A cassette arrangement as claimed in claim 4, wherein said guide means for the recording medium are provided on both of said two parts of the cassette housing, said guide means, after said two parts have been brought together, conjointly effecting the guidance of the recording medium.
Claim 12
Dependent Claim
22 words
A cassette arrangement as claimed in claim 1, wherein guide means for the recording medium are provided exclusively on the cassette housing.
Claim 13
Dependent Claim
65 words
A cassette arrangement as claimed in claim 1, wherein tensioning means for the recording medium are provided on the reel-holder to insure that the recording medium is in a predetermined position when said reel-holder is introduced into the cassette housing, and wherein there are provided elements on said housing for pivoting said tensioning means into an out-of-the-way position when said reel-holder has been so introduced.
Claim 14
Dependent Claim
23 words
A cassette arrangement as claimed in claim 4, wherein there are provided means for locking said bottom part and said lid part together.
Claim 15
Dependent Claim
25 words
A cassette arrangement as claimed in claim 1, wherein the reel-holder is provided with guide slots which cooperate with guide elements provided on the housing.
Claim 16
Dependent Claim
178 words
In a cassette arrangement for a recording medium in strip or tape form, particularly a magnetic tape, for use with a recording and/or playback apparatus having drive means and scanning means, said cassette arrangement comprising an inner protective reel-holder in the form of a substantially closed, flat container the interior of which, circumferentially, is bordered by at least three side walls, said holder carrying a hub or hubs on which said recording medium is wound to form said reel or reels thereon, an approximately rectangular outer cassette housing forming a separate part of said cassette arrangement, said housing having a bottom part and a lid part, having openings to admit said drive means and said scanning means and, in one of said openings which is located adjacent the front of said housing, guide means and a pressure pad for said recording medium, and also having guiding and holding rails in said lid and/or said bottom parts to facilitate introduction of said reel(s), by means of said holder, into the open cassette housing in the correct position for operation.
Claim 17
Dependent Claim
178 words
In a cassette arrangement for a recording medium in strip or tape form, particularly a magnetic tape, for use with a recording and/or playback apparatus having drive means and scanning means, said cassette arrangement comprising an inner protective reel-holder in the form of a substantially closed, flat container the interior of which, circumferentially, is bordered by at least three side walls, said holder carrying a hub or hubs on which said recording medium is wound to form said reel or reels thereon, an approximately rectangular outer cassette housing forming a separate part of said cassette arrangement, said housing having a bottom part and a lid part, having openings to admit said drive means and said scanning means and, in one of said openings which is located adjacent the front of said housing, guide means and a pressure pad for said recording medium, and also having guiding and holding rails in said lid and/or said bottom parts to facilitate introduction of said reel(s), by means of said holder, into the open cassette housing in the correct position for operation.
Claim 18
Dependent Claim
35 words
In a cassette arrangement a housing as claimed in claim 13, wherein there are provided connecting means for connecting said bottom part and said lid part together, and locking means for releasably locking the connection.
Claim 19
Dependent Claim
16 words
In a cassette arrangement housing as claimed in claim 14, wherein said connecting means are releasable.
Claim 20
Dependent Claim
17 words
In a cassette arrangement a housing as claimed in claim 14, wherein said connecting means are non-releasable.
Claim 21
Dependent Claim
20 words
In a cassette arrangement a housing as claimed in claim 15 or 16, wherein said connecting means are hinge means.
Claim 22
Dependent Claim
24 words
In a cassette arrangement a housing as claimed in claim 14, wherein said housing is made from a light metal or light metal alloy.
Claim 23
Dependent Claim
18 words
In a cassette arrangement a housing as claimed in claim 14, wherein said housing is made from polystyrene.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |