Patent JPS5813020A successfully refreshed from Google Patents.
Patent JPS5453859A successfully refreshed from Google Patents.
Patent US5619194A successfully refreshed from Google Patents.
US5619194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optic traffic signal light system having a shutter control
Assignee: Individual
•
Filing: 1996-02-28
•
Granted: 1997-04-08
•
Expires: 2016-02-28
Abstract
Abstract The system includes a high-intensity light source, a fiber optic conduit for transmitting a light-beam, and colored lenses, which emit red, yellow, and green light on fiber optic lines. Each traffic light has a shutter and control means for opening and closing the shutters in the proper sequence for preset time periods to control red, yellow, and green lights.
Inventors
- 👤 Bruce D. Belfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:27
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/095; F; F21; F21W; F21W2111/00; F21W2111/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
124 words
A fiber optic traffic signal light control system, comprising: a) a light source including at least one high-intensity lamp; b) movable red, yellow, and green lenses; c) fiber optic cables for receiving light from said light source and connected to said red, yellow, and green lenses, respectively, to provide sources of red, yellow and green signal lights; d) at least one traffic signal light connected to said lenses, each having a single display for displaying said red, yellow, and green signal lights; and e) switching control means connected to said lenses for moving said lenses in a predetermined sequence for predetermined time periods to control the supply of red, green, and yellow light to each of said single displays in said traffic signal lights.
Claim 2
Dependent Claim
124 words
A fiber optic traffic signal light control system, comprising: a) a light source including at least one high-intensity lamp; b) movable red, yellow, and green lenses; c) fiber optic cables for receiving light from said light source and connected to said red, yellow, and green lenses, respectively, to provide sources of red, yellow and green signal lights; d) at least one traffic signal light connected to said lenses, each having a single display for displaying said red, yellow, and green signal lights; and e) switching control means connected to said lenses for moving said lenses in a predetermined sequence for predetermined time periods to control the supply of red, green, and yellow light to each of said single displays in said traffic signal lights.
Claim 3
Dependent Claim
13 words
A fiber optic system in accordance with claim 1, wherein said lenses rotate.
Claim 4
Dependent Claim
124 words
A fiber optic traffic signal light control system, comprising: a) a light source including at least one high-intensity lamp; b) movable red, yellow, and green shutters; c) fiber optic cables for receiving light from said light source and connected to said red, yellow, and green shutters, respectively, to provide sources of red, yellow and green signal lights; d) at least one traffic signal light connected to said shutters, each having a single display for displaying said red, yellow, and green signal lights; and e) switching control means connected to said shutters for moving said shutters in a predetermined sequence for predetermined time periods to control the supply of red, green, and yellow light to each of said single displays in said traffic signal lights.
Claim 5
Dependent Claim
124 words
A fiber optic traffic signal light control system, comprising: a) a light source including at least one high-intensity lamp; b) movable red, yellow, and green shutters; c) fiber optic cables for receiving light from said light source and connected to said red, yellow, and green shutters, respectively, to provide sources of red, yellow and green signal lights; d) at least one traffic signal light connected to said shutters, each having a single display for displaying said red, yellow, and green signal lights; and e) switching control means connected to said shutters for moving said shutters in a predetermined sequence for predetermined time periods to control the supply of red, green, and yellow light to each of said single displays in said traffic signal lights.
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) | 2000-04-07 | 2000-10-07 | 2001-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-04-07 | 2004-10-07 | 2005-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-04-07 | 2008-10-07 | 2009-04-08 | $7700.00 | Window Closed / Lapsed |