Apparatus for the automatic ejection of concrete pipes

Details Apparatus for the automatic ejection of concrete pipes Apparatus for the automatic ejection of concrete pipes

1982-10-22

1984-05-22

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

By movable ejector means entering mold cavity

249100, 425427, B28B 1306

Patent

active

044499124

ABSTRACT:
An apparatus for manufacturing concrete pipes having a molding flask provided with a specially formed end ring on the bell end side. The apparatus further includes a device for detaching this end ring and another device disposed at the spigot end side and allotted for thrusting a hardened concrete pipe out of the molding flask.

REFERENCES:
patent: 3119165 (1964-01-01), Gourlie
patent: 3341910 (1967-09-01), Hesselholt
patent: 3419649 (1968-12-01), Livingston et al.
patent: 3500514 (1970-03-01), Ruegsegger
patent: 3660003 (1972-05-01), Waddington
patent: 4118165 (1978-10-01), Christian

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