Device for forming tube with thickened socket end

Details Device for forming tube with thickened socket end Device for forming tube with thickened socket end

1976-08-09

1978-12-26

Lazarus, Richard B.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Rod or tubular preform

425DIG218, B29C 1700

Patent

active

041314077

ABSTRACT:
A device for manufacturing a plastic tube having a thickened socket end and being provided with an inner circular groove. The device includes a socket forming mandril having a core member associated with it. The mandril is provided with a groove-forming member. A hollow die is also provided which has a portion adapted to fittingly cooperate with the outer side of the mandril. A hollow mould lies in an adjoining relationship with the hollow die and is disposed in front of the core member. The hollow mould has an inner diameter which is greater than the outer diameter of the mandril.

REFERENCES:
patent: 3360826 (1968-01-01), Lorang
patent: 3755528 (1973-08-01), Gutlhuber et al.

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