Patent US3724111A successfully refreshed from Google Patents.
US3724111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for illuminating transparent images, especially diapositives
Assignee: Individual
•
Filing: 1971-01-14
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Granted: 1973-04-03
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Expires: 1991-01-14
Abstract
Abstract An apparatus for illuminating diapositives, negatives or the like for inspecting the same which comprises a box-shaped housing the open upper side of which is covered by a plate of opal glass or the like and carries a supporting frame the lateral sides of which are provided with index studs upon which a flat, partly transparent, pocketlike element for holding one or more diapositives or the like may be applied in different positions. This frame is adapted to receive a cover frame for holding down the pocketlike element in each of its positions. This cover frame may be exchanged for another which is provided with apertures in each of which a framed diapositive or the like may be deposited.
Inventors
- 👤 K Grieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:00
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
232 words
A device for illuminating transparency sheets in the form of diapositives and negatives and the like, said device comprising: a housing having an upper opening; a light source in the housing; a translucent plate mounted on the housing in covering relationship to said opening for scattering the light from the source; a supporting frame having a central aperture, said frame being configured for resting on the edge portions of the upper surface of the plate with said central aperture in alignment with said opening, there being a downwardly projecting flange on said frame disposed for engaging the lateral edges of the plate and the sides of the housing; structure for partially covering the central aperture of the frame, said structure including means presenting at least one aperture therein, said frame including shoulder means on the upper side thereof disposed for receiving and supporting the covering structure in a predetermined position thereon with the aperture of the structure disposed in alignment with at least a portion of the central aperture of the frame; and a pair of index pins on the frame extending upwardly from the shoulder means for aligning a transparency support device having a plurality of index holes therein with said apertures, said covering structure including pin bridging means disposed for cleAring said pins to prevent the latter from interfering with the placement of the covering structure on the shoulder means.
Claim 2
Independent Claim
232 words
A device for illuminating transparency sheets in the form of diapositives and negatives and the like, said device comprising: a housing having an upper opening; a light source in the housing; a translucent plate mounted on the housing in covering relationship to said opening for scattering the light from the source; a supporting frame having a central aperture, said frame being configured for resting on the edge portions of the upper surface of the plate with said central aperture in alignment with said opening, there being a downwardly projecting flange on said frame disposed for engaging the lateral edges of the plate and the sides of the housing; structure for partially covering the central aperture of the frame, said structure including means presenting at least one aperture therein, said frame including shoulder means on the upper side thereof disposed for receiving and supporting the covering structure in a predetermined position thereon with the aperture of the structure disposed in alignment with at least a portion of the central aperture of the frame; and a pair of index pins on the frame extending upwardly from the shoulder means for aligning a transparency support device having a plurality of index holes therein with said apertures, said covering structure including pin bridging means disposed for cleAring said pins to prevent the latter from interfering with the placement of the covering structure on the shoulder means.
Claim 3
Dependent Claim
36 words
A device as set forth in claim 1 wherein the covering structure includes means presenting a recess at the aperture therein for receiving and supporting a transparency in alignment with the aperture of the covering structure.
Claim 4
Dependent Claim
25 words
A device as set forth in claim 1 wherein said transparency support device comprises a pocket-like element including structure defining a plurality of separate pockets.
Claim 5
Dependent Claim
22 words
A device as set forth in claim 1 wherein is included means for pivotally interconnecting the supporting frame and the cover structure.
Claim 6
Dependent Claim
47 words
A device as set forth in claim 1 wherein a plurality of apertures are presented by said aperture presenting means of the covering structure, there being included means at each aperture for receiving and supporting a separate transparency in alignment with the corresponding one of said apertures.
References Cited (Backward Citations)
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US2944356A
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |