Road structure – process – or apparatus – Apparatus – Screed or drag
Patent
1989-12-20
1991-02-26
Britts, Ramon S.
Road structure, process, or apparatus
Apparatus
Screed or drag
404118, 371175, E01C 1922
Patent
active
049957600
ABSTRACT:
Scraping device for removing excess subgrade material from the surface of a subgrade to level the subgrade, which includes a lower wall, side walls, a rear wall and an optional top wall defining a container for collecting removed excess subgrade material, and attachment means so the device may be lifted and transported by a fork lift truck or the bucket of an earth moving vehicle for emptying; advantageously the apparatus is formed in sections which can be disassembled and stacked one within another.
REFERENCES:
patent: 3901618 (1975-08-01), Sant'Agata
patent: 4009529 (1977-03-01), Johnson
patent: 4208814 (1980-06-01), Stone
patent: 4395156 (1983-07-01), Sprague, III
patent: 4545721 (1985-10-01), Pettersson
patent: 4572301 (1986-02-01), Bourgeois, Jr.
patent: 4630964 (1986-12-01), Allen
Probst Martin
Schaffarzyk Herbert
Schaffarzyk Walter
Britts Ramon S.
O'Brien Anthony A.
Spahn Gay Ann
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