Infinitely adjustable calibrating shell for continuous...

Details Infinitely adjustable calibrating shell for continuous... Infinitely adjustable calibrating shell for continuous...

2007-05-29

2007-05-29

Davis, Robert (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Diverse distinct type shaping means

Shaping orifice and either a downstream preform reshaping...

C425S071000, C425S387100, C425S392000

Reexamination Certificate

active

11249748

ABSTRACT:
Infinitely adjustable calibrating shell includes a central piece formed by strips or bands which are hingedly connected to each other and intersect like an extendable lattice that is formed into a shell. Preferably, the ends of the strips are movably connected to annular heads. The inner diameter of the central piece which is decisive for the calibrating process, can be modified by axially changing the distance between the annular heads, the cross section of the central piece having a circular shape in each axial position. The infinitely adjustable calibrating shell is suitable for continuous extruded plastic parts, in particular plastic pipes.

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International Search Report dated Sep. 1, 2004 in PCT/EP2004/003966, filed Apr. 15, 2004 (2 pages); Written Opinion (3 pages); and Attachment to Written Opinion (1 page), No Translation.
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