Road structure – process – or apparatus – Traffic director
Patent
1985-08-07
1987-08-11
Leppink, James A.
Road structure, process, or apparatus
Traffic director
404 12, 404 14, E01F 904
Patent
active
046858245
ABSTRACT:
The invention deals with a road marking tape which has retroreflective elements and protruding anti-skid elements, and which means is provided for preventing damaging of the retroreflective elements by snow plowing means. The preventing means is designed in accordance with the present invention in a special manner as a compressible element which is composed of a compressible material so that in response to impact of the protruding elements of the tape by the snow plowing means the compressible material of the compressible element compresses and the original thickness of the compressible material reduces to a predetermined thickness which is selected so that the protruding element sink into the groove by the depth at least equal to the height of the protruding elements.
REFERENCES:
patent: 2225496 (1940-12-01), Gethin et al.
patent: 3920348 (1975-11-01), Paulos
patent: 4117192 (1978-09-01), Jorgensen
patent: 4123140 (1978-10-01), Ryan et al.
patent: 4129673 (1978-12-01), Eigenmann
patent: 4146635 (1979-03-01), Eigenmann
patent: 4218059 (1980-08-01), Eiden
patent: 4300973 (1981-11-01), Bezwada
Leppink James A.
Smith Matthew
Striker Michael J.
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