Road structure – process – or apparatus – Traffic director – Yielding
Patent
1985-02-04
1986-06-17
Novosad, Stephen J.
Road structure, process, or apparatus
Traffic director
Yielding
404 16, 116 63R, E01F 906
Patent
active
045953120
ABSTRACT:
An improved traffic marker for deployment into the running surface of a roadway is disclosed wherein a light reflecting reflector thereof is normally positioned at above grade to enhance the visibility of retro-reflecting light impinging thereon from ongoing traffic. The reflector is mounted in a circumscribing holder, hardened to withstand the onslaught of vehicular traffic and of leading tungsten edges of snow plow blades. On impact, the holder descends into the marker, out of harm's way, carrying with it the reflector so that the reflector is not damaged. After impact, pneumatic pressure built up in the marker as a result of the descending action of the holder restores instantaneously the holder to above grade and hence the light reflecting surfaces as well. A four-step assembly operation of the unit develops a sub-assembly for holder and flexible membrane and a hermetic and pneumatically sealing boundary surface therebetween. The final assembly steps mount the sub-assembly into hermetically pneumatic sealing with the housing while disposing the reflector and its surrounding holder at above grade to the upper surface of the housing.
REFERENCES:
patent: D270143 (1983-08-01), Flanagan
patent: 2073968 (1937-03-01), Krebs
patent: 2185488 (1940-01-01), White, Jr.
patent: 3257552 (1966-06-01), Converso
patent: 3292506 (1966-12-01), Kone
patent: 3717076 (1973-02-01), Shields et al.
patent: 3980410 (1976-09-01), Suhr et al.
patent: 4049358 (1977-09-01), King et al.
patent: 4080085 (1978-03-01), Dickson
patent: 4130370 (1978-12-01), Kone
patent: 4140418 (1979-02-01), Holley
patent: 4188150 (1980-02-01), Sroka
patent: 4234264 (1980-11-01), Baldi
patent: 4297051 (1981-10-01), Robinson
patent: 4402628 (1983-09-01), Grenier et al.
Armstrong R. Craig
Letchford John F.
Novosad Stephen J.
LandOfFree
Pneumatically restorable retractable pavement marker and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatically restorable retractable pavement marker and method , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatically restorable retractable pavement marker and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2270851