Apparatus for manufacturing shaped articles of plastics material

Details Apparatus for manufacturing shaped articles of plastics material Apparatus for manufacturing shaped articles of plastics material

1986-11-17

1988-05-31

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

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

Rod or tubular preform

72369, 72381, 425394, B29C 5308

Patent

active

047477687

ABSTRACT:
In order to manufacture shaped tubular articles of plastics material, a semi-finished tube of softened plastics which is substantially straight and has a diameter about equal to the diameter of the article to be formed is introduced into a mould defining a cavity which is substantially straight. Subsequently, the mould is operated so as to deform the cavity and give it a shape corresponding to the shape of the article to be formed.

REFERENCES:
patent: 220536 (1879-10-01), Hyde
patent: 2044322 (1936-06-01), Oliver et al.
patent: 2485282 (1949-10-01), Green
patent: 2831382 (1958-04-01), Klamm
patent: 3650140 (1972-03-01), Zmuda
patent: 3753635 (1973-08-01), Barnett
patent: 3884612 (1975-05-01), Parmann
patent: 4009982 (1977-03-01), Maier
patent: 4160006 (1979-07-01), Patzner et al.
patent: 4352281 (1982-10-01), Ragettli

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