Concrete finisher with retractable guard ring section

Details Concrete finisher with retractable guard ring section Concrete finisher with retractable guard ring section

1976-09-08

1977-06-07

Byers, Nile C.

Road structure, process, or apparatus

Apparatus

Tool rotating in horizontal plane

E01C 1922

Patent

active

040279910

ABSTRACT:
A concrete finisher of the type having driven paddles surrounded by a peripheral guard ring is made with one or more relieved guard ring sections, each preferably having a flattened outer edge, so that the finisher can be used to finish concrete surfaces adjacent to a wall or other obstruction. In some embodiments the relieved guard ring wall guide section is fixed. In other embodiments it is retractable.

REFERENCES:
patent: 2109933 (1938-03-01), Sloan
patent: 2689507 (1954-09-01), McCrery
patent: 3091158 (1963-05-01), Bunger
patent: 3296946 (1967-01-01), Cagno
patent: 3412657 (1968-11-01), Colizza
patent: 3973857 (1976-08-01), Whiteman

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