Raised depressible pavement marker

Road structure – process – or apparatus – Traffic director – Attenuated lane marker type

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

404 11, 340435, E01F 900

Patent

active

050747061

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.

REFERENCES:
patent: 1410007 (1922-03-01), Downey
patent: 1496811 (1924-06-01), Lange et al.
patent: 2224937 (1940-12-01), Stedman
patent: 2974304 (1961-03-01), Nordlund
patent: 3090042 (1963-05-01), Kleist et al.
patent: 3257552 (1966-06-01), Converso
patent: 3771123 (1973-11-01), Lanes
patent: 3921749 (1975-11-01), Kawada
patent: 4050834 (1977-09-01), Lee
patent: 4290047 (1981-09-01), Latta, Jr.
patent: 4590471 (1986-05-01), Pieroway et al.
patent: 4597691 (1986-07-01), Clarke
patent: 4668120 (1987-05-01), Roberts
patent: 4694296 (1987-09-01), Sasaki et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Raised depressible pavement marker does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Raised depressible pavement marker, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raised depressible pavement marker will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-40267

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.