Patent US2497040A successfully refreshed from Google Patents.
Patent US3754765A successfully refreshed from Google Patents.
US3754765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-touch operation cassette tape player
Assignee: Individual
•
Filing: 1971-08-23
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Granted: 1973-08-28
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Expires: 1991-08-23
Abstract
Abstract A cassette holder is pivotally mounted on pivot pins horizontally fixed on the opposite side walls of a chassis, and a pair of cassette guides are pivotally mounted on pivot pins fixed on the front end portions of the opposite side walls of the cassette holder. Further, a pair of links are vertically pivotally mounted on pivot pins on the inner surfaces of the opposite side walls of the chassis for causing a vertical pivotal movement of the cassette guides, each of the links being provided with an elongated slot at the central portion thereof for engagement with a pin provided on the corresponding side surface of the cassette holder.
Inventors
- 👤 T Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:10
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/675; G11B15/67544; G11B15/67555
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
194 words
A one-touch operation mechanism for a cassette tape player, comprising a main chassis and a cassette holder having one end pivotally connected to said main chassis, a pair of cassette guides having one end pivotally connected to the other end of said cassette holder, a pair of links having one end pivotally connected to said main chassis, each of said links having an elongated slot near its center and said cassette holder having a pin on either side thereof received in said slots, each of said links having its end remote from said one end engaged with respective cassette guides for causing a vertical movement of said cassette guides incident to the pivotal movement of said cassette holder, and a cassette holder lock engagable with the other end of said cassette holder for locking said other end in a raised position above said chassis, said lock extending above said cassette holder and in the path of a cassette to be inserted, whereby upon inserting a cassette into the cassette guides said cassette holder lock is released from locking engagement with said cassette holder and said cassette can be moved to a tape playing position.
Claim 2
Dependent Claim
194 words
A one-touch operation mechanism for a cassette tape player, comprising a main chassis and a cassette holder having one end pivotally connected to said main chassis, a pair of cassette guides having one end pivotally connected to the other end of said cassette holder, a pair of links having one end pivotally connected to said main chassis, each of said links having an elongated slot near its center and said cassette holder having a pin on either side thereof received in said slots, each of said links having its end remote from said one end engaged with respective cassette guides for causing a vertical movement of said cassette guides incident to the pivotal movement of said cassette holder, and a cassette holder lock engagable with the other end of said cassette holder for locking said other end in a raised position above said chassis, said lock extending above said cassette holder and in the path of a cassette to be inserted, whereby upon inserting a cassette into the cassette guides said cassette holder lock is released from locking engagement with said cassette holder and said cassette can be moved to a tape playing position.
Claim 3
Dependent Claim
66 words
A one-touch operation mechanism as claimed in claim 1 further comprising first spring means engaged with said cassette guides urging said cassette guides in a direction opposite to the direction of vertical movement caused by said pair of links, and second spring means connected to said cassette holder lock urging said lock into the position in which it holds said cassette holder in the raised position.
Claim 4
Dependent Claim
46 words
A one-touch operation mechanism as claimed in claim 2 further comprising a lever engaging said cassette holder for moving the cassette holder and said cassette guides against the action of said first spring means, and push button means engaged with said lever for actuating said lever.
References Cited (Backward Citations)
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US3542370A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |