Precast concrete pipe recycling machine

Details Precast concrete pipe recycling machine Precast concrete pipe recycling machine

2006-05-02

2006-05-02

Lagman, Frederick L. (Department: 3673)

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

With forming or cutting of pipe or cable

C405S184300, C405S303000

Reexamination Certificate

active

07037041

ABSTRACT:
The concrete pipe recycling machine is transportable to job sites for breaking apart concrete pipe and recycling the concrete and the steel reinforcement therein. The concrete pipe recycling machine has a mandrel type anvil which presses the top of the pipe upward toward a hammer which impacts the outside of the pipe such that the energy imparted by the hammer is reflected by the anvil and breaks down the concrete. The concrete aggregate processed by the hammer fall through open mesh with a conveyor thereunder to transport the concrete pieces for recycling. The anvil rotates in gear fashion to rotate the pipe and the hammer traverses axially to reach all portions of the surface of the pipe. The anvil support opens to admit a new pipe to be recycled and to release the steel cage inside of the pipe when the concrete is removed therefrom.

REFERENCES:
patent: 4979489 (1990-12-01), Abbasov et al.
patent: 5127481 (1992-07-01), Hesse
patent: 6280119 (2001-08-01), Ryan et al.
patent: 10-249225 (1998-09-01), None

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