Patent US373849A successfully refreshed from Google Patents.
Patent US3620429A successfully refreshed from Google Patents.
US3620429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for detecting a tape end in a tape recorder
Assignee: Panasonic Holdings Corp
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Filing: 1970-04-03
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Granted: 1971-11-16
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Expires: 1990-04-03
Abstract
Abstract A device to detect the arrival of a tape end when movement of the tape is terminated includes a capstan driven by a motor. A pressure roller is rotatably mounted on an arm to move a tape by means of cooperation with the capstan. A rotating member is rotatably mounted on the arm coaxially with the pressure roller and is driven by the capstan. An actuating element is mounted fixedly on the rotating member, and a driven means is engageable with the actuating element upon the termination of the movement of the tape.
Inventors
- 👤 Isao Kozu
- 👤 Yikitada Ayukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:25
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/05; G11B15/093; G11B15/18; G11B15/46
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
In a tape recorder, the combination comprising: a driven capstan, a pressure roller rotatably mounted on an arm and adapted to engage with said capstan to move a tape, a rotating member rotatably mounted on said arm coaxially with said pressure roller and driven by said capstan, an actuating element fixedly mounted on said rotating member, and driven means adapted to engage said actuating element upon the termination of movement of said tape.
Claim 2
Dependent Claim
73 words
In a tape recorder, the combination comprising: a driven capstan, a pressure roller rotatably mounted on an arm and adapted to engage with said capstan to move a tape, a rotating member rotatably mounted on said arm coaxially with said pressure roller and driven by said capstan, an actuating element fixedly mounted on said rotating member, and driven means adapted to engage said actuating element upon the termination of movement of said tape.
Claim 3
Dependent Claim
39 words
The combination defined in claim 1, wherein said driven means is adapted to release said pressure roller from engagement with said capstan by means of the rotation force of said rotating member when movement of said tape is terminated.
Claim 4
Dependent Claim
132 words
In a tape recorder, the combination comprising: a driven capstan, a pressure roller rotatably mounted on an arm and adapted to engage with said capstan to move a tape, a rotating member rotatably mounted on said arm coaxially with said pressure roller, a driving element mounted fixedly on said rotating member, an actuating element fixedly mounted on said rotating member rotatable in synchronism with said driving element, and a follower member biased against said driving element under the rotation force of said pressure roller so as to follow said driving element, said follower element remaining out of engagement with said actuating element while said pressure roller continues its rotation, and said actuating means engaging said follower member when said pressure roller stops its rotation upon the termination of movement of said tape.
Claim 5
Dependent Claim
132 words
In a tape recorder, the combination comprising: a driven capstan, a pressure roller rotatably mounted on an arm and adapted to engage with said capstan to move a tape, a rotating member rotatably mounted on said arm coaxially with said pressure roller, a driving element mounted fixedly on said rotating member, an actuating element fixedly mounted on said rotating member rotatable in synchronism with said driving element, and a follower member biased against said driving element under the rotation force of said pressure roller so as to follow said driving element, said follower element remaining out of engagement with said actuating element while said pressure roller continues its rotation, and said actuating means engaging said follower member when said pressure roller stops its rotation upon the termination of movement of said tape.
Claim 6
Dependent Claim
35 words
The combination defined in claim 3, wherein said follower member is biased against said driving element by the frictional rotation force of a friction roller which is associated with and rotated by said pressure roller.
Claim 7
Dependent Claim
68 words
The combination defined in claim 3, wherein said follower member is movable from a first position to a second position by said actuating element when said pressure roller stops its rotation upon the termination of movement of said tape, said follower member at said first position follows said driving element and at said second position being adapted to move said pressure roller out of engagement with said capstan.
References Cited (Backward Citations)
US3432169A
Cited
US3485500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |