US4375634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning light
Assignee: Individual
•
Filing: 1979-05-17
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Granted: 1983-03-01
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Expires: 1999-05-17
Abstract
Abstract A warning light which has a dome-shaped lens containing a xenon stroboscopic bulb and a halogen cycle bulb. The bulbs are energized, either separately or at the same time, to provide two types of warning lights, while means are provided for minimizing the amount of light that escapes through the top of the dome.
Inventors
- 👤 Harvey Leis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:18
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
108 words
In a warning light device of the type comprising first and second light sources mounted on a base with a translucent generally dome-shaped lens overlying said light sources and being supported by said base and means for energizing said first and second light sources, the improvement comprising means for flashing said first light so that a second flash is initiated before the light from a first flash is extinguished so that said first light source provides a continuous beam of light of variable intensity to continuously illuminate the area around said warning light, and means for causing said second light source to provide an intermittent beam of light.
Claim 2
Dependent Claim
108 words
In a warning light device of the type comprising first and second light sources mounted on a base with a translucent generally dome-shaped lens overlying said light sources and being supported by said base and means for energizing said first and second light sources, the improvement comprising means for flashing said first light so that a second flash is initiated before the light from a first flash is extinguished so that said first light source provides a continuous beam of light of variable intensity to continuously illuminate the area around said warning light, and means for causing said second light source to provide an intermittent beam of light.
Claim 3
Dependent Claim
62 words
A warning light of the type defined in claim 1 wherein said first light source comprises a first bulb containing a halogen gas, and said means for energizing said first and second light sources comprises a source of electrical power, and means for varying the power supplied to said first bulb so that the intensity at which said first bulb glows varies.
Claim 4
Dependent Claim
36 words
A warning light as defined in claim 2 wherein said second light source is a stroboscopic bulb, and means for selectively connecting said power source to said first or second bulbs or to both of them.
Claim 5
Dependent Claim
67 words
A warning light as defined in claims 3 or 1 wherein said lens is generally frustoconical in shape and has sides and a generally curved top wall, and said top wall comprises a frosted inner surface for reflecting light generated by said light sources back into said lens so that light that would be lost through said top wall is projected through the sides of said lens.
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) | 1986-02-28 | 1986-08-30 | 1987-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-28 | 1990-08-30 | 1991-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-28 | 1994-08-30 | 1995-03-01 | $7700.00 | Window Closed / Lapsed |