Apparatus for scabbling concrete

Details Apparatus for scabbling concrete Apparatus for scabbling concrete

1986-09-05

1989-06-27

Lock, Edward K.

Motors: expansible chamber type

Cyclically operable

Valveless distribution

91235, 92165R, 921711, 173116, F01L 2102, F01B 708

Patent

active

048418420

ABSTRACT:
There is described apparatus for scabbling concretw which includes a hollow cylinder block having a top and bottom plate between which plates there is provided a smooth sided hollow cylindrical cylinder liner. The piston for reciprocation within the cylinder liner is also provided.

REFERENCES:
patent: 1640470 (1927-08-01), Saulia
patent: 2739570 (1956-03-01), Frantz
patent: 3572448 (1971-03-01), Marcenuk
patent: 3688848 (1972-09-01), Vick et al.
patent: 4191093 (1980-03-01), Compton
patent: 4197786 (1980-04-01), Pillon
patent: 4256014 (1981-03-01), Kroger
patent: 4414881 (1983-11-01), Devaud

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