Patent US3592537A successfully refreshed from Google Patents.
US3592537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge-type cine-projector
Assignee: Ricoh Co Ltd
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Filing: 1969-05-27
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Granted: 1971-07-13
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Expires: 1989-05-27
Abstract
Abstract A cartridge-type cine-projector having on its front panel a screen and a separate opening having wall means that slant inwardly toward the screen at an angle of about 50*. A film cartridge having an included light source reflecting mirror is insertable into said opening and an image from the film is projected onto an angled mirror mounted rearwardly from the screen so that the image reflected from the angled mirror appears on the screen.
Inventors
- 👤 Tokusaburo Kakiuchi
- 👤 Hideaki Akiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:16
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/14; G03B21/32; G03B21/321; G03B21/323
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
A cartridge type cine-projector comprising: a front panel having a first opening therein; a projection screen mounted in said first opening; a second opening formed in said front panel and spaced from said first opening; wall means formed integral with said second opening and extending inwardly into said cine-projector at an angle toward said screen, said angle in the range of 45* to 55* measured from the front panel between said second opening and said screen; a light source mounted within the cine-projector; a first mirror mounted at an angle within said cine-projector rearwardly of said screen; a cartridge containing film insertable into said second opening to be held within said wall means, said cartridge having an opening to receive the light from said source and a second mirror angularly mounted within said cartridge opposite said cartridge opening to direct the light through the film at substantially the angle of said wall means; a projection lens mounted within said cine-projector adjacent the inward termination of said wall means; and an image from the film being projected by the light through said lens onto said second mirror to be reflected onto said screen.
Claim 2
Dependent Claim
192 words
A cartridge type cine-projector comprising: a front panel having a first opening therein; a projection screen mounted in said first opening; a second opening formed in said front panel and spaced from said first opening; wall means formed integral with said second opening and extending inwardly into said cine-projector at an angle toward said screen, said angle in the range of 45* to 55* measured from the front panel between said second opening and said screen; a light source mounted within the cine-projector; a first mirror mounted at an angle within said cine-projector rearwardly of said screen; a cartridge containing film insertable into said second opening to be held within said wall means, said cartridge having an opening to receive the light from said source and a second mirror angularly mounted within said cartridge opposite said cartridge opening to direct the light through the film at substantially the angle of said wall means; a projection lens mounted within said cine-projector adjacent the inward termination of said wall means; and an image from the film being projected by the light through said lens onto said second mirror to be reflected onto said screen.
Claim 3
Dependent Claim
50 words
A cine-projector according to claim 2, in which the wall means has a length dimension extending to a predetermined depth, and the film cartridge has a dimension greater than said wall means dimension so that part of said cartridge projects out from said front panel when the cartridge is inserted.
Claim 4
Dependent Claim
31 words
A cine-projector according to claim 2, in which said cartridge opening is spacEd further from said front panel than the inward end of said wall means when said cartridge is inserted.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |