US3720462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microfiche film reader
Assignee: Eastman Kodak Co
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Filing: 1970-05-21
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Granted: 1973-03-13
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Expires: 1990-05-21
Abstract
Abstract A reader for microfiche transparencies having a plurality of images arranged thereon in an X-Y format comprises a housing in which a light-tight casing is arranged which carries a projection lens system, a mirror system and a viewing screen which encloses one side of the casing adjacent or facing an opening in the reader housing. The housing supports a lamp housing and a movable U-shaped member which carries a clamp means for engaging the transparency along an edge thereof. The U-shaped member moves the microfiche back and forth in one direction to intercept the optic axis and the clamp means moves the transparency in the other direction normal to the first direction to also intercept the optic axis. An actuating means is connected to the U-shaped member and to the clamp means so that the transparency can be moved in both directions simultaneously or independently in either one of the directions.
Inventors
- 👤 G Dali
- 👤 W White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:06
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/10; G03B21/11; G03B21/115
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
204 words
In a film reader having an illuminating system and an optical system defining an optic axis, said optical system being arranged within a housing and relative to a rear projection screen in said housing for projecting at least a part of any one of a plurality of images arranged in an X-Y format on a transparency onto said screen, said housing being provided with an external arcuate surface having an aperture aligned with said optic axis and over which surface said transparency is movable, the improvement comprising: a movable U-shaped member having its legs pivotally connected to said housing and the cross bar thereof extending across the surface of said housing for back and forth movement in one direction; clamp means for engaging said transparency along an edge thereof and slidably mounted on said cross bar for back and forth movement in an other direction normal to said one direction; and actuating means operatively connected to said U-shaped member and to said clamp means for moving the same simultaneously or independently of one another, thereby moving said transparency over said arcuate surface relative to said optic axis and between said systems to position a selected one of said images relative to said optic axis.
Claim 2
Dependent Claim
204 words
In a film reader having an illuminating system and an optical system defining an optic axis, said optical system being arranged within a housing and relative to a rear projection screen in said housing for projecting at least a part of any one of a plurality of images arranged in an X-Y format on a transparency onto said screen, said housing being provided with an external arcuate surface having an aperture aligned with said optic axis and over which surface said transparency is movable, the improvement comprising: a movable U-shaped member having its legs pivotally connected to said housing and the cross bar thereof extending across the surface of said housing for back and forth movement in one direction; clamp means for engaging said transparency along an edge thereof and slidably mounted on said cross bar for back and forth movement in an other direction normal to said one direction; and actuating means operatively connected to said U-shaped member and to said clamp means for moving the same simultaneously or independently of one another, thereby moving said transparency over said arcuate surface relative to said optic axis and between said systems to position a selected one of said images relative to said optic axis.
Claim 3
Dependent Claim
204 words
In a film reader having an illuminating system and an optical system defining an optic axis, said optical system being arranged within a housing and relative to a rear projection screen in said housing for projecting at least a part of any one of a plurality of images arranged in an X-Y format on a transparency onto said screen, said housing being provided with an external arcuate surface having an aperture aligned with said optic axis and over which surface said transparency is movable, the improvement comprising: a movable U-shaped member having its legs pivotally connected to said housing and the cross bar thereof extending across the surface of said housing for back and forth movement in one direction; clamp means for engaging said transparency along an edge thereof and slidably mounted on said cross bar for back and forth movement in an other direction normal to said one direction; and actuating means operatively connected to said U-shaped member and to said clamp means for moving the same simultaneously or independently of one another, thereby moving said transparency over said arcuate surface relative to said optic axis and between said systems to position a selected one of said images relative to said optic axis.
Claim 4
Dependent Claim
204 words
In a film reader having an illuminating system and an optical system defining an optic axis, said optical system being arranged within a housing and relative to a rear projection screen in said housing for projecting at least a part of any one of a plurality of images arranged in an X-Y format on a transparency onto said screen, said housing being provided with an external arcuate surface having an aperture aligned with said optic axis and over which surface said transparency is movable, the improvement comprising: a movable U-shaped member having its legs pivotally connected to said housing and the cross bar thereof extending across the surface of said housing for back and forth movement in one direction; clamp means for engaging said transparency along an edge thereof and slidably mounted on said cross bar for back and forth movement in an other direction normal to said one direction; and actuating means operatively connected to said U-shaped member and to said clamp means for moving the same simultaneously or independently of one another, thereby moving said transparency over said arcuate surface relative to said optic axis and between said systems to position a selected one of said images relative to said optic axis.
Claim 5
Dependent Claim
25 words
A film reader in accordance with claim 1 wherein said U-shaped member is pivotally mounted relative to the center of curvature of said arcuate surface.
Claim 6
Dependent Claim
25 words
A film reader in accordance with claim 1 wherein said clamp means comprises two pair of spaced toggle members slidably mounted on said cross bar.
Claim 7
Dependent Claim
54 words
A film reader in accordance with claim 1 wherein said actuating means comprises a knob freely and rotatably mounted on said U-shaped member and with respect to the center of curvature of said arcuate surface and operatively connected to said U-shaped member for moving the same over said arcuate surface in said one direction.
Claim 8
Dependent Claim
22 words
A film reader in accordance with claim 4 wherein said knob is operatively connected to said U-shaped member through a drive system.
Claim 9
Dependent Claim
25 words
A film reader in accordance with claim 5 wherein said drive system comprises a gear train positively interconnected with a gear segment on said housing.
Claim 10
Dependent Claim
28 words
A film reader in accordance with claim 5 wherein said drive system comprises a train of frictionally driven members interconnected with an arcuate stationary lip on said housing.
Claim 11
Dependent Claim
32 words
A film reader in accordance with claim 7 wherein said frictionally driven members comprise at least a pair of spherical drive members frictionally engaging said knob, said U-shaped member and said housing.
Claim 12
Dependent Claim
67 words
A film reaDer in accordance with claim 1 wherein said actuating means comprises a first movable member operatively connected to said U-shaped member for moving the latter in said one direction and a second movable member operatively connected to said clamp means for moving the latter in said other direction, said movable members being arranged relative to one another so as to be operable jointly or severally.
Claim 13
Dependent Claim
47 words
A film reader in accordance with claim 9 wherein said first movable member comprises a first knob and said second movable member comprises a second knob rotatably mounted on said U-shaped member and relative to said first knob so as to be actuated therewith or independent thereof.
Claim 14
Dependent Claim
32 words
A film reader in accordance with claim 10 wherein said second knob is interconnected by a cable to said clamp means for moving the latter back and forth in said other direction.
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |