Extruder and sizer apparatus for hollow plastic sections

Details Extruder and sizer apparatus for hollow plastic sections Extruder and sizer apparatus for hollow plastic sections

1976-04-26

1978-09-12

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Diverse distinct type shaping means

Shaping orifice and either a downstream preform reshaping...

425380, 425394, 425467, 425812, B29F 303, B29F 304

Patent

active

041134117

ABSTRACT:
An apparatus, particularly for manufacturing hollow sections of a plastic material, comprising an extruder head for extruding a section and a gauger or sizer downstream of said extruder head. The gauger comprises a lower chamber and an upper chamber communicating to a vacuum source. The lower and upper chambers are respectively closed by a substantially plate-like lower member and substantially plate-like upper member respectively contacting the lower face and the upper face of the section extruded by the extruder head. The substantially plate-like lower and upper members comprise a plurality of bars arranged side by side and spaced apart such as to define slots therebetween for communicating respectively with the lower chamber and upper chamber. The bars extend along a substantially perpendicular direction with respect to the extruded section direction of advance.

REFERENCES:
patent: 3635615 (1972-01-01), Hartmann et al.
patent: 3792951 (1972-01-01), Meyers
patent: 3879508 (1975-04-01), Gilbert
patent: 3899276 (1975-08-01), Sokolow

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