US3836095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for automatically gripping and winding up a recording tape
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1972-11-27
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Granted: 1974-09-17
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Expires: 1992-11-27
Abstract
Abstract An arrangement for winding a recording tape onto a take-up core in a tape recording playback system, the tape being attached to a stiff leader of greater width than the tape. Two fixed guidemembers surround the core in order to guide the edges of the leader. An intake channel is formed by extensions of the guide members which open in a line substantially tangential to the periphery of the take-up core. The inner perimeters of these guide members are spaced from the peripheral surface of the takeup core in order that the leader of the recording tape can be led through the intake channel into operative engagement with the take-up core.
Inventors
- 👤 J Kruhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:58
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/18; G11B23/00; G11B23/20; G11B23/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
211 words
In an apparatus for winding onto a peripheral surface of a take-up core a recording tape having attached thereto a stiff leader of greater width than the tape for use in a tape recording system, the apparatus including means for advancing the recording tape along a guide path towards the take-up core and means for driving the take-up core, the improvement comprising: two spaced parallel plates having inner annular edges constituting first and second guide members, said first and second guide members fixedly surrounding a substantial portion of the periphery of said core, said guide members being spaced from each other by a distance greater than the width of the recording tape and smaller than the width of the leader and being spaced from the peripheral surface of said take-up core by a distance greater than the thickness of the wound-up leader, said guide members being provided at one point along their periphery with extensions defining, in continuation of said guide path, an intake channel opening substantially tangentially to said take-up core, whereby the leader is guided through said intake channel to the space between said guide members and the peripheral surface of said take-up core so that the leader becomes operatively engaged with the peripheral surface of said take-up core.
Claim 2
Dependent Claim
211 words
In an apparatus for winding onto a peripheral surface of a take-up core a recording tape having attached thereto a stiff leader of greater width than the tape for use in a tape recording system, the apparatus including means for advancing the recording tape along a guide path towards the take-up core and means for driving the take-up core, the improvement comprising: two spaced parallel plates having inner annular edges constituting first and second guide members, said first and second guide members fixedly surrounding a substantial portion of the periphery of said core, said guide members being spaced from each other by a distance greater than the width of the recording tape and smaller than the width of the leader and being spaced from the peripheral surface of said take-up core by a distance greater than the thickness of the wound-up leader, said guide members being provided at one point along their periphery with extensions defining, in continuation of said guide path, an intake channel opening substantially tangentially to said take-up core, whereby the leader is guided through said intake channel to the space between said guide members and the peripheral surface of said take-up core so that the leader becomes operatively engaged with the peripheral surface of said take-up core.
Claim 3
Dependent Claim
30 words
An arrangement as defined in claim 1 wherein said take-up core comprises two radial flanges spaced from each other by a distance slightly larger than the width of the leader.
Claim 4
Dependent Claim
31 words
An arrangement as defined in claim 2 wherein the radius of said flanges is greater than the radius of said annular edges and said guide members are located between said flanges.
Claim 5
Dependent Claim
41 words
An arrangement as defined in claim 3 wherein an annular recess is provided in each of said plates on its exterior surface and each of said flanges of the take-up core is seated within a respective one of said annular recesses.
Claim 6
Dependent Claim
21 words
An arrangement as defined in claim 1 wherein said take-up core has a peripheral surface having a high coefficient of friction.
Claim 7
Dependent Claim
32 words
An arrangement as defined in claim 1 further comprising means for pressing the leader against said take-up core until the leader has been wound around the core for at least one turn.
Claim 8
Dependent Claim
67 words
An arrangement as defined in claim 6 wherein said means includes a pressure roller and mounting means for said pressure roller for pressing same against said take-up core at least during the first turn of the leader around said take-up core and for thereafter removing said pressure roller from that area between said guide members in which a coil of the recording tape is to be formed.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |