US3700880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system
Assignee: Individual
•
Filing: 1970-12-08
•
Granted: 1972-10-24
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Expires: 1990-12-08
Abstract
Abstract A shallow box-like housing has a front wall composed of a translucent screen surrounded by an opaque frame. Within the housing is or are one or more rotating discs faced with randomly oriented reflective plastic. Rays from a plurality of lights hidden behind the opaque frame are reflected by the disc or discs onto the inner side of the translucent screen.
Inventors
- 👤 Victor S Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:50
CPC Classifications
F; F21; F21S; F21S10/00; F21S10/007; Y; Y10; Y10S; Y10S362/00; Y10S362/806; Y10S362/811
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
A device for projecting a visual light source onto a screen, comprising a shallow box-like housing having a frame wall thereof constituted by a translucent screen surrounded by an opaque frame, at least one disc means rotatably supported in said housing behind said screen and having a substantially conical face thereof disposed towards said screen, each said disc means having on the conical face thereof a reflective surface comprised of crinkled metalized plastic material of differently colored randomly oriented reflective surfaces, means for rotating said disc means, a plurality of light sources in said housing disposed generally laterally of the disc means behind the opaque frame for projecting light onto said disc means and thence by reflection onto the screen, and means in said housing for blocking direct transmittal of light rays from the light sources onto the screen.
Claim 2
Independent Claim
139 words
A device for projecting a visual light source onto a screen, comprising a shallow box-like housing having a frame wall thereof constituted by a translucent screen surrounded by an opaque frame, at least one disc means rotatably supported in said housing behind said screen and having a substantially conical face thereof disposed towards said screen, each said disc means having on the conical face thereof a reflective surface comprised of crinkled metalized plastic material of differently colored randomly oriented reflective surfaces, means for rotating said disc means, a plurality of light sources in said housing disposed generally laterally of the disc means behind the opaque frame for projecting light onto said disc means and thence by reflection onto the screen, and means in said housing for blocking direct transmittal of light rays from the light sources onto the screen.
Claim 3
Dependent Claim
37 words
The combination claimed in claim 1, the means for blocking direct transmittal of light rays from the light sources to the screen comprising shields surrounding the light sources and having open ends directed towards the disc means.
Claim 4
Dependent Claim
50 words
The combination claimed in claim 1, the means for blocking direct transmittal of light rays from the light source onto the screen comprising an opaque flange on the inner periphery of the frame, said flange extending inwardly of the housing and being disposed between the light sources and the screen.
Claim 5
Dependent Claim
26 words
The combination claimed in claim 1, there being a plurality of said disc means the outer peripheries of which are disposed substantially in a common plane.
Claim 6
Dependent Claim
26 words
The combination claimed in claim 1, there being a single disc means, the outer periphery of which is disposed at least in part behind the frame.
Claim 7
Dependent Claim
21 words
The combination claimed in claim 1, and means for imparting a flickering effect on at least one of the light sources.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |