Corrugator with intermeshing overlapping moldblock halves

Details Corrugator with intermeshing overlapping moldblock halves Corrugator with intermeshing overlapping moldblock halves

1987-11-23

1988-12-06

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

Sets of shaping couples comprising an endless surface for...

Corrugating means for running length work

425337, 425369, 425388, 425390, 425392, 425395, 425396, 425539, B29C 5524, B29C 5138, B29C 5528, B29C 5330

Patent

active

047893222

ABSTRACT:
A corrugator for molding externally ribbed and corrugated thermoplastic pipes, including two trains of moldblock halves circulating respectively in two endless paths and cooperating with each other to form a travelling mold for the thermoplastic pipes. The halves of one train are biased in relation to and overlap those of the second train along the travelling mold and are provided with intermeshing elements hooking the halves of the two trains together.

REFERENCES:
patent: 3280430 (0198-12-01), Antrobus
patent: 3349156 (1967-10-01), Zieg
patent: 3751541 (1973-08-01), Hegller
patent: 3998579 (1976-12-01), Nordstrom
patent: 4021178 (1977-05-01), Braun
patent: 4199314 (1980-04-01), Lupke et al.
patent: 4504206 (1985-03-01), Lupke et al.
patent: 4681526 (1987-07-01), Lupke

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