Raised depressible pavement marker
First Claim
1. A self illuminating retractable pavement marker comprising:
- a base receptacle adapted to be fixedly secured to the walls of a cavity formed within a pavement;
a piston assembly including a light means, said piston assembly normally protruding above the base and the pavement surface and resiliently retractable downwardly into said base;
a rechargeable battery means positioned in said base receptacle for illuminating said light means;
a solar cell means openly positioned on said piston assembly for receiving light and for recharging said rechargeable battery; and
sensing means for receiving external indications and illuminating said light means in response to said external indications, said sensing means includes a receiver switch, said receiver switch being responsive to receipt of a signal received from a remotely generated radio signal to illuminate said light means.
2 Assignments
0 Petitions
Accused Products
Abstract
A depressible pavement marker is provided and includes a base receptacle, a piston assembly with a reflector and a resilient, compressible, water impervious mass. The base receptacle is mounted in the pavement with a portion of the piston assembly protruding above the pavement so that the reflector can be seen. The piston assembly and base are of a piston-in-cylinder arrangement with the piston assembly depressible into the base. The mass fills substantially the entire cavity formed between the inner surfaces of the piston assembly and the base. In another embodiment a self illuminating marker is provided and includes a solar cell, rechargeable battery, light source and sensor. The solar cell recharges the battery during daylight hours. The sensor energizes and de-energized the light source in response to external indications. A further embodiment is also provided which includes a locational traffic marker having a transmitter in the piston assembly for sending a locational signal to a remote receiver such as for example a suitably equipped emergency vehicle.
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Citations
5 Claims
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1. A self illuminating retractable pavement marker comprising:
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a base receptacle adapted to be fixedly secured to the walls of a cavity formed within a pavement; a piston assembly including a light means, said piston assembly normally protruding above the base and the pavement surface and resiliently retractable downwardly into said base; a rechargeable battery means positioned in said base receptacle for illuminating said light means; a solar cell means openly positioned on said piston assembly for receiving light and for recharging said rechargeable battery; and sensing means for receiving external indications and illuminating said light means in response to said external indications, said sensing means includes a receiver switch, said receiver switch being responsive to receipt of a signal received from a remotely generated radio signal to illuminate said light means. - View Dependent Claims (2, 3)
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4. A retracting pavement marker location indicating system for a roadway comprising:
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a base receptacle adapted to be fixedly secured to the walls of a pavement; a retractable piston assembly, parts of said piston assembly normally protruding above the base receptacle and pavement surface and resiliently depressible downwardly into said base; a remote external receiver adapted to be mounted in a motor vehicle; and location means for transmitting a location signal to said external receiver, said external receiver receiving said location signal and decoding the location signal for calculating the location of said marker along said roadway. - View Dependent Claims (5)
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Specification