US3890777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device
Assignee: BURKE COMMUNICATION INDUSTRIES Inc
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Filing: 1973-11-01
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Granted: 1975-06-24
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Expires: 1993-11-01
Abstract
Abstract A display device is provided containing a transparent or translucent panel having a display on the front or back of said panel, illuminating means mounted back of said panel to cause light to be transmitted around or through said display, and a plurality of discs mounted for rotation in front of said illuminating means to the rear of said panel and to one side of said display, said discs having radial light transmitting sections and means to cause the rotation of said discs, preferably a clock mechanism, to produce a flashing radial light.
Inventors
- 👤 Robert B Stanish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:24
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/30; G04B45/00; G04B45/0007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
184 words
A clock comprising a clock driving mechanism, a first pattern disc rotatable in response to said mechanism including radial transparent sections on an opaque background, a second disc rotatable in response to said mechanism at the rate of one revolution every 12 hours and having a radial transparent section and otherwise being colored with the colored portion being light transmitting, and a third disc rotatable in response to said mechanism at the rate of one revolution every hour and having the same characteristics as the second disc except that it is a different color, said discs being aligned with one another, a light source adapted to produce light rays which are transmitted through said first, second and third discs in the order named, the second and third discs blocking light everywhere except at locations aligned with one of the transparent sections in the second and third discs so that whenever a transparent section in the second and third disc is aligned with a transparent section on the first disc a colored radially moving flashing illuminated hour and minute hand is presented to the viewer.
Claim 2
Dependent Claim
184 words
A clock comprising a clock driving mechanism, a first pattern disc rotatable in response to said mechanism including radial transparent sections on an opaque background, a second disc rotatable in response to said mechanism at the rate of one revolution every 12 hours and having a radial transparent section and otherwise being colored with the colored portion being light transmitting, and a third disc rotatable in response to said mechanism at the rate of one revolution every hour and having the same characteristics as the second disc except that it is a different color, said discs being aligned with one another, a light source adapted to produce light rays which are transmitted through said first, second and third discs in the order named, the second and third discs blocking light everywhere except at locations aligned with one of the transparent sections in the second and third discs so that whenever a transparent section in the second and third disc is aligned with a transparent section on the first disc a colored radially moving flashing illuminated hour and minute hand is presented to the viewer.
Claim 3
Dependent Claim
37 words
A clock as claimed in claim 1 in which said first disc has a greater diameter than the second and third discs and contains means to transmit light in an orbit around said second and third discs.
Claim 4
Dependent Claim
31 words
A clock as claimed in claim 1 in which said clock driving mechanism includes concentric second, hour and minute shafts on which said first, second and third discs, respectively, are mounted.
Claim 5
Dependent Claim
20 words
A clock as claimed in claim 1 in which said transparent sections in said second and third discs are slots.
Claim 6
Dependent Claim
46 words
A clock as claimed in claim 1 in which said second disc is colored red and said third disc is colored blue whereby the radial transparent section of said second disc will show blue and the radial transparent section of said third disc will show red.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |