Screed frame and stiffening apparatus

Details Screed frame and stiffening apparatus Screed frame and stiffening apparatus

1988-02-23

1989-02-21

Massie, Jerome W.

Road structure, process, or apparatus

Apparatus

Screed or drag

E01C 1922

Patent

active

048060470

ABSTRACT:
The present invention includes a concrete screed frame having a first screed blade, a second screed blade and a camber top member arranged in a triangular cross section. A plurality of frame supports are transversely mounted between the first and second screed blades. A plurality of braces are mounted between the top camber member and the first and second screed blades. A telescoping tube assembly having a first tube and a second tube is mounted transversely between the first and second screed blades at the approximate midpoint of the length of the frame. A pin selectively fixes the relative position of the first and second tubes. Elongated structural means illustrated as a chain assembly is mounted to a screed blade and a tube to stiffen the screed frame and provides a chain-formed truss with the screed frame.

REFERENCES:
patent: 4030873 (1977-06-01), Morrison
patent: 4213749 (1980-07-01), Morrison
patent: 4249327 (1981-02-01), Allen
patent: 4253778 (1981-03-01), Morrison
patent: 4261694 (1981-04-01), Morrison
patent: 4335976 (1982-06-01), Morrison
patent: 4340351 (1982-07-01), Owens
patent: 4349328 (1982-09-01), Allen
patent: 4375351 (1983-03-01), Allen
patent: 4397626 (1983-08-01), Morrison
patent: 4427358 (1984-01-01), Stilwell
patent: 4466757 (1984-08-01), Allen
patent: 4577994 (1986-03-01), Miller
patent: 4722638 (1988-02-01), Morrison

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