US3629965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light box
Assignee: Individual
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Filing: 1969-07-14
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Granted: 1971-12-28
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Expires: 1989-07-14
Abstract
Abstract A conventional transparency is removably mounted in an opening in the front of a box containing a translucent shade, which is mounted to pivot about its upper edge toward and away from the transparency, and to closed and open positions, respectively. A first lamp adjacent the lower edge of the shade illuminates the transparency when the shade is in its open position, and a second lamp rearward of the shade may be energized to superimpose an image of the shade onto the transparency, when the shade is closed. Two such shades pivoted relative to one another may be mounted in the box as an alternate construction.
Inventors
- 👤 William A Heindl Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:03
CPC Classifications
G; G09; G09F; G09F13/00; G09F13/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
139 words
A light box for illuminating transparencies, comprising a housing having an opening in one side thereof, means for removably mounting a transparency across said opening, a light source mounted in said housing to illuminate said transparency, motor-operated drive means in said housing, a generally rigid shade pivotally mounted in said housing rearwardly of said transparency and operatively connected to said drive means for pivotal movement thereby toward and away from said transparency, and means including said shade operative to superimpose selected images onto said transparency when said shade is pivoted toward said transparency, said shade having therethrough a plurality of spaced openings for focusing light from said source onto selected areas of said transparency, when said shade is pivoted toward said transparency, and said shade being at least as thick as the diameter of the largest of said openings.
Claim 2
Dependent Claim
139 words
A light box for illuminating transparencies, comprising a housing having an opening in one side thereof, means for removably mounting a transparency across said opening, a light source mounted in said housing to illuminate said transparency, motor-operated drive means in said housing, a generally rigid shade pivotally mounted in said housing rearwardly of said transparency and operatively connected to said drive means for pivotal movement thereby toward and away from said transparency, and means including said shade operative to superimpose selected images onto said transparency when said shade is pivoted toward said transparency, said shade having therethrough a plurality of spaced openings for focusing light from said source onto selected areas of said transparency, when said shade is pivoted toward said transparency, and said shade being at least as thick as the diameter of the largest of said openings.
Claim 3
Dependent Claim
200 words
A light box for illuminating transparencies, comprising a housing having an opening in one side thereof, means for removably mounting a transparency transversely across said opening, a generally rigid shade mounted in said housing rearwardly of said opening for pivotal movement between a first position in which said shade is disposed in spaced, parallel, confronting relation to said transparency, and a second position in which said shade is disposed in a plane inclined to said transparency with one edge of said shade spaced from said transparency a greater distance than the opposite edge thereof, drive means in said housing operatively connected to said shade to pivot said shade between its first and second positions, and a lamp mounted in said housing adjacent said one edge of said shade and positioned to direct light between said transparency and said shade, when said shade is in said second position, and to direct light onto the side of said shade remote from said transparency, when said shade is in said first position, and shade being opaque and having therethrough a plurality of openings for focusing light from said lamp onto selected areas of said transparency, when said shade is in said first position.
Claim 4
Dependent Claim
200 words
A light box for illuminating transparencies, comprising a housing having an opening in one side thereof, means for removably mounting a transparency transversely across said opening, a generally rigid shade mounted in said housing rearwardly of said opening for pivotal movement between a first position in which said shade is disposed in spaced, parallel, confronting relation to said transparency, and a second position in which said shade is disposed in a plane inclined to said transparency with one edge of said shade spaced from said transparency a greater distance than the opposite edge thereof, drive means in said housing operatively connected to said shade to pivot said shade between its first and second positions, and a lamp mounted in said housing adjacent said one edge of said shade and positioned to direct light between said transparency and said shade, when said shade is in said second position, and to direct light onto the side of said shade remote from said transparency, when said shade is in said first position, and shade being opaque and having therethrough a plurality of openings for focusing light from said lamp onto selected areas of said transparency, when said shade is in said first position.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |