Duckboard

Road structure – process – or apparatus – Pavement – Modules or blocks

Patent

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Details

238 14, E01C 908

Patent

active

049647512

ABSTRACT:
A duckboard comprising a succession of treads (11) linked so as to rest, in use, in generally parallel non-co-axial corresponding-end-alignment along the ground or other surface on which the board is placed: and characterized by the features, firstly that the board is flexible enough to be rolled end-to-end; secondly, that it is light enough to be relatively portable; and thirdly, that the means (12) linking the treads (11) are resilient enough and/or rigid enough to tend to maintain the parallelism and the end-alignment of the treads (11) in use.

REFERENCES:
patent: 1325575 (1919-12-01), Niewoehner
patent: 2225828 (1940-12-01), Godschall
patent: 2422006 (1947-06-01), Friedman
patent: 3350013 (1967-10-01), Bergquist
patent: 3425624 (1969-02-01), Jacobs
patent: 3820912 (1974-06-01), Hughes
patent: 4023803 (1977-05-01), Lewis
patent: 4047257 (1977-09-01), Bondarchuk, Sr.
patent: 4681482 (1987-07-01), Arciszewski et al.

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