US4292627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traffic marker
Assignee: OIA Inc A CORP OF
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Filing: 1979-09-04
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Granted: 1981-09-29
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Expires: 1999-09-04
Abstract
Abstract A traffic road marker has an upright translucent shell supported on a weighted base. The shell contains a battery and light bulb operated by a self-actuating switch which engages when the shell is placed in an upright position. Optionally connected in the circuit are a circuit interrupter to flash the light bulb and a photocell to shut the circuit off during daylight hours.
Inventors
- 👤 Val F. Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:00
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/688; E01F9/692; E01F9/623; E01F9/654; Y; Y10; Y10S; Y10S362/00; Y10S362/802
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
201 words
A road safety device comprises a ground-supported, weighted base, a hollow upright translucent marker member, electric light means for illuminating the marker member, battery means, switch means for automatically activating the light means when the marker is in an operating position and deactivating the light means when the marker is in a non-operating position, light-actuated switch means operatively electrically connected to the light means and the battery means such that said light-actuated switch means permits current to flow to the light means when ambient illumination is less than a predetermined level, and prohibits said current flow when the ambient illumination is greater than said predetermined level, the switch means comprising an actuating arm movable between an extended position protruding beyond the base and a depressed position, circuit closure means for electrically connecting the battery means to the light means when the actuating arm is in the depressed position and for disconnecting the battery means and light means when the actuating arm is in the extended position, biasing means for maintaining the actuating arm in a normally extended position, said actuating arm being positioned such that it is moved to the depressed position when the safety device is placed in operating position.
Claim 2
Dependent Claim
201 words
A road safety device comprises a ground-supported, weighted base, a hollow upright translucent marker member, electric light means for illuminating the marker member, battery means, switch means for automatically activating the light means when the marker is in an operating position and deactivating the light means when the marker is in a non-operating position, light-actuated switch means operatively electrically connected to the light means and the battery means such that said light-actuated switch means permits current to flow to the light means when ambient illumination is less than a predetermined level, and prohibits said current flow when the ambient illumination is greater than said predetermined level, the switch means comprising an actuating arm movable between an extended position protruding beyond the base and a depressed position, circuit closure means for electrically connecting the battery means to the light means when the actuating arm is in the depressed position and for disconnecting the battery means and light means when the actuating arm is in the extended position, biasing means for maintaining the actuating arm in a normally extended position, said actuating arm being positioned such that it is moved to the depressed position when the safety device is placed in operating position.
Claim 3
Dependent Claim
22 words
The road safety device of claim 1 wherein the device also comprises circuit interrupter means for flashing the light on and off.
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) | 1984-09-28 | 1985-03-30 | 1985-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-28 | 1989-03-30 | 1989-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-28 | 1993-03-30 | 1993-09-29 | $7700.00 | Window Closed / Lapsed |