Road structure – process – or apparatus – Traffic steering device or barrier
Patent
1977-05-04
1978-05-16
Byers, Nile C.
Road structure, process, or apparatus
Traffic steering device or barrier
E01F 1300
Patent
active
040896153
ABSTRACT:
A concrete block having an essentially triangular cross-sectional configuration and an elongate shape and intended to be used to temporarily or permanently delimit roadways, parking lots and the like. The block side faces have a concavely rounded configuration matching that of a vehicle wheel, and the block base comprises bevelled edge faces allowing the block to be tilted at a limited angle upon impact from e.g. a vehicle. An anchoring means of an essentially crank-like shape may be provided to improve the stability of the block, one leg of said crank extending vertically into the foundation whereas the other one projects vertically into a recess formed in the block, said recess having a conical shape to allow tilting of the block upon impact.
REFERENCES:
patent: 919788 (1909-04-01), Smith
patent: 1175962 (1916-03-01), Latham
patent: 2725958 (1955-12-01), Porter
patent: 3209662 (1965-10-01), Morton
patent: 3308724 (1967-03-01), Smith
patent: 3448963 (1969-06-01), Gravisse
patent: 3636829 (1972-01-01), Palmer
patent: 3678815 (1972-07-01), Yonker
Almer Bengt Onnert
Gidlof Karl Gunnar
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