Patent US3643846A successfully refreshed from Google Patents.
US3643846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary stop device for tape recorder
Assignee: Victor Company of Japan Ltd
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Filing: 1969-06-19
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Granted: 1972-02-22
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Expires: 1989-06-19
Abstract
Abstract A temporary stop device for tape recorder temporarily or transiently stopping the running of a tape by parting a pinch roller from a rotating capstan which is contacted with the pinch roller by compression and thereafter instantly running the tape by contacting the pinch roller with the capstan. Contacting and parting operations of the pinch roller with and from the capstan are made by a cam means. A cam operation switch and a tape running indication part are housed in a remote control part at some distance apart from the tape recorder body.
Inventors
- 👤 Yoshiro Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:57
CPC Classifications
G; G11; G11B; G11B31/00; G11B15/00; G11B15/02; G11B15/023; G11B15/10; G11B15/18; G11B15/1883; G11B27/00; G11B27/10; G11B27/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
166 words
A temporary stop device for a tape recorder comprising a rotating capstan, a pinch roller urging a tape into running with said capstan, a lever carrying said pinch roller and pivoted on a shaft to be rotatable with the pinch roller for contacting or parting said pinch roller with or from said capstan, a rotary cam having crests and valleys on the peripheral surface thereof for turning said lever along the peripheral surface, a ratchet integral with the rotary cam, an electromagnet having a forwarding member in engagement with the ratchet, first switch means for energizing said electromagnet whereby said cam is turned, second switch means including a movable leaf engaged with the peripheral surface of said cam for closing when said cam is turned to contact said pinch roller with said capstan and opening when said cam is turned to part said pinch roller from said capstan, and lighting and indicator means to light a lamp in response to closing of said second switch means.
Claim 2
Dependent Claim
166 words
A temporary stop device for a tape recorder comprising a rotating capstan, a pinch roller urging a tape into running with said capstan, a lever carrying said pinch roller and pivoted on a shaft to be rotatable with the pinch roller for contacting or parting said pinch roller with or from said capstan, a rotary cam having crests and valleys on the peripheral surface thereof for turning said lever along the peripheral surface, a ratchet integral with the rotary cam, an electromagnet having a forwarding member in engagement with the ratchet, first switch means for energizing said electromagnet whereby said cam is turned, second switch means including a movable leaf engaged with the peripheral surface of said cam for closing when said cam is turned to contact said pinch roller with said capstan and opening when said cam is turned to part said pinch roller from said capstan, and lighting and indicator means to light a lamp in response to closing of said second switch means.
Claim 3
Dependent Claim
55 words
The temporary stop device for a tape recorder as claimed in claim 1 wherein said first switch means includes a switch serially connected to a series combination of a power source and said electromagnet, and said lighting and indicator means include a series combination of said lamp, said second switch means and said power source.
Claim 4
Dependent Claim
44 words
The temporary stop device for tape recorder claimed in claim 2 wherein said lamp and said switch are housed in a casing separately from the power source, the electromagnet and the second switch means so as to control remotely the energization of the electromagnet.
Claim 5
Dependent Claim
39 words
The temporary stop device for tape recorder claimed in claim 1 wherein said forwarding member turns the rotary cam through said ratchet in one pitch between its adjacent crest and valley in response to the energization of the electromagnet.
References Cited (Backward Citations)
US3148819A
Cited
US3285486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |