Patent US3832049A successfully refreshed from Google Patents.
US3832049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide transparency projecting and simultaneous sound reproducing device
Assignee: Individual
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Filing: 1971-12-28
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Granted: 1974-08-27
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Expires: 1991-12-28
Abstract
Abstract A slide transparency projecting and simultaneous sound reproducing device adapted to sequentially project a plurality of slide transparencies each incorporated in a tape cassette is provided, and simultaneously with projection, the sound reproduction is effected. Such tape cassettes each incorporating a slide transparency are sequentially and automatically fed to a projection and sound reproduction position in a device consisting of, say, a combination of a slide transparency projector and a sound reproducing device (for example, a cassette tape recorder). Accordingly, one can watch the projected screen and at the same time can listen to the text of the illustration being projected. This device provides a useful combination of a slide transparency projector and sound device which have remained desirable hitherto.
Inventors
- 👤 S Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:55
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/06
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
293 words
A slide projector and simultaneous sound reproducing device for use with a plurality of tape cassettes each having a slide transparency, said device comprising: a casing having a passage in the front portion thereof for permitting movement of the cassettes therethrough, said casing further including a discharge opening; means For sequentially feeding the cassettes along a first linear path into the passage in said casing; means for sequentially moving said cassettes along a second linear path that is perpendicular to the first linear path and for locating the cassettes at a projection and sound reproduction position in said passage; means for successively urging each cassette into a predetermined position corresponding to the projection and voice reproduction position; means for effecting the required projection and sound reproduction; means for sequentially transferring each cassette along a continuation of the second path to a lower position in said passage; means for sequentially discharing the cassettes from the casing; means for stacking the discharged cassettes; a guide member extending in a first direction parallel to the first linear path; a carrier having an urging member for urging said tape cassettes in the first direction; an arresting piece extending in the first direction, said arresting piece including a plurality of perforations arranged in a row parallel to the first path, the dimension between centers of adjacent ones of the perforations corresponding to the width of each tape cassette; an electro-magnetic mechanism for advancing and retracting said arresting piece by a dimension corresponding to the dimension between centers of adjacent ones of the perforations; an arresting pawl adapted to be resiliently supported by said carrier and to engage said arresting perforations; and means for forcibly releasing the engagement of said arresting pawl from said perforations in said arresting piece.
Claim 2
Dependent Claim
293 words
A slide projector and simultaneous sound reproducing device for use with a plurality of tape cassettes each having a slide transparency, said device comprising: a casing having a passage in the front portion thereof for permitting movement of the cassettes therethrough, said casing further including a discharge opening; means For sequentially feeding the cassettes along a first linear path into the passage in said casing; means for sequentially moving said cassettes along a second linear path that is perpendicular to the first linear path and for locating the cassettes at a projection and sound reproduction position in said passage; means for successively urging each cassette into a predetermined position corresponding to the projection and voice reproduction position; means for effecting the required projection and sound reproduction; means for sequentially transferring each cassette along a continuation of the second path to a lower position in said passage; means for sequentially discharing the cassettes from the casing; means for stacking the discharged cassettes; a guide member extending in a first direction parallel to the first linear path; a carrier having an urging member for urging said tape cassettes in the first direction; an arresting piece extending in the first direction, said arresting piece including a plurality of perforations arranged in a row parallel to the first path, the dimension between centers of adjacent ones of the perforations corresponding to the width of each tape cassette; an electro-magnetic mechanism for advancing and retracting said arresting piece by a dimension corresponding to the dimension between centers of adjacent ones of the perforations; an arresting pawl adapted to be resiliently supported by said carrier and to engage said arresting perforations; and means for forcibly releasing the engagement of said arresting pawl from said perforations in said arresting piece.
Claim 3
Dependent Claim
151 words
A device according to claim 1 wherein there is further included a tape take-up device comprising: a T-shaped supporting piece pivoted on the central leg thereof; spring means for biasing the central leg of said supporting piece towards and away from a neutral position; sliding elements provided at the opposite wings of said supporting piece; first and second wheels in contact with each other and rotatably mounted on said sliding elements; a third wheel cooperating with one of said first and said second wheels; a fourth wheel adapted to selectively and frictionally engage said first and said third wheels; a rewinding hub and a fly wheel arranged to frictionally engage said fourth wheel whereby a tape may be rewound when said first and said third wheels each abut against said fly wheel and said rewinding wheel, respectively; and an electro-magnetic mechanism for pivotally displacing the central leg of said supporting piece.
Claim 4
Dependent Claim
68 words
A device according to claim 1 wherein said discharging and stacking means comprises: an urging plate including a parallel linkage mechanism disposed at a position corresponding to that of the discharge opening in said casing; and guiding and stacking rods protruding from and mounted about the periphery of said discharge opening in said casing, said guiding and stacking rods being adapted to receive and stack the tape cassettes.
Claim 5
Dependent Claim
96 words
A device according to claim 1 wherein said locating means comprises: a locating member disposed on one side of the passage in said casing and arranged so as to position the cassettes at a level corresponding to the projection and sound reproduction position by means of the weight of the cassettes; means for urging the cassettes inwardly at the projection and sound reproduction position; a drive motor and a transmission belt driven thereby; take-up and rewind means in said casing; and means for connecting said transmission belt to each of said take-up and said rewinding means.
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |