Concrete finishing screed

Details Concrete finishing screed Concrete finishing screed

2006-03-28

2006-03-28

Addie, Raymond W (Department: 3671)

Road structure, process, or apparatus

Apparatus

Screed or drag

C404S075000, C404S101000

Reexamination Certificate

active

07018133

ABSTRACT:
A cement finishing screed is provided which comprises a frame member extending a length of the screed. The frame member includes a first lower beam member, a second lower beam member, an upper beam member, and a plurality of truss members securing the first and second lower beam members and the upper beam member together in a fixed relationship. Each truss member has two arcuate rod portions extending from the first lower beam member and the second lower beam member, respectively, to the upper beam member, and a strut portion extending from a lower end of one of the rod portions to a lower end of another of the rod portions.

REFERENCES:
patent: 4340351 (1982-07-01), Owens
patent: 4349295 (1982-09-01), Morrison
patent: 4427358 (1984-01-01), Stilwell
patent: 4685826 (1987-08-01), Allen
patent: 4950101 (1990-08-01), Artzberger
patent: 5871302 (1999-02-01), Carlson
patent: 6457902 (2002-10-01), Artzberger et al.

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