Apparatus for the manufacture of a plastic pipe having transvers

Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Molding pressure control means responsive to pressure at...

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264 405, 2642093, 264286, 264508, 425150, 425325, 425336, 425392, 425396, 425532, 425539, B29C 3324, B29C 5330, B29D 2318

Patent

active

053932110

ABSTRACT:
An apparatus for the manufacture of pipes having transverse profile features has a machine bed, on which half shells, which can be combined to form a mold, are rotatably and displaceably drivable. The half shells are pressed together on a molding path by guide rails, of which one is displaceable at right angles to the direction of production by hydraulically actuatable drives. Interlockings may be provided in addition, a locking member of which engaging with an associated locking recess.

REFERENCES:
patent: 3751541 (1973-08-01), Hegler
patent: 3776679 (1973-12-01), Hegler
patent: 3981663 (1976-09-01), Lupke
patent: 4789322 (1988-12-01), Chan et al.
patent: 4824354 (1989-04-01), Keaton
patent: 4900503 (1990-12-01), Hegler et al.
Kunststoffe, vol. 61, 1971, Issue 4, "Anlagen zum Kontinuierlichen Herstellen von Sandwich-Elementen und ahnlichen Halbzeugen aus Polyurethan-Schaumstoffen".

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