Apparatus for levelling concrete

Road structure – process – or apparatus – Process – In situ treatment of earth or roadway

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Details

404 97, 404114, 404118, E01C 1940

Patent

active

048611883

ABSTRACT:
This invention relates to a method and an apparatus for compacting and smoothing freshly poured concrete during the construction of a floor or other flat surface. The apparatus is a screed divided in two portions. The first portion is used to level, compact and remove excess concrete and the second portion allows the screed to float on the freshly poured and soft concrete.

REFERENCES:
patent: 1955101 (1934-04-01), Sloan
patent: 2180198 (1939-11-01), Day
patent: 2255343 (1941-09-01), Baily
patent: 2303335 (1942-12-01), Day
patent: 2314985 (1943-03-01), Jackson
patent: 2386662 (1945-10-01), Crock
patent: 2400321 (1946-05-01), Troxell
patent: 2651980 (1953-09-01), Wells et al.
patent: 2746367 (1956-05-01), Ferguson
patent: 3883259 (1975-05-01), Berg et al.
patent: 4349295 (1982-09-01), Morrison
patent: 4375351 (1983-03-01), Allen
patent: 4386901 (1983-06-01), Morrison
patent: 4408978 (1983-10-01), Owens
patent: 4798494 (1989-01-01), Allen

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