Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1974-10-07
1976-09-21
Husar, Francis S.
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
425371, 425387B, 425396, 425DIG206, 425DIG208, B29F 308
Patent
active
039816630
ABSTRACT:
A high speed corrugator for producing corrugated thermoplastic tubing comprises a pair of complementary upper and lower mold assemblies each comprising an endless chain of articulately interconnected mold blocks and means for guiding the mold blocks along an endless track having a forward run and a return run, each mold block being complimentary to a respective mold block of the other assembly, the mold blocks co-operating in pairs along said forward run to form an axially extending tunnel defining a tubular mold having a corrugated wall. The mold assemblies are positioned so as to locate the extrusion head at the entrance to the tunnel coaxially therewith, and extruded thermoplastic material is expanded by blow molding to conform to the interior surface of the mold. Cooling air is fed along an air distributor duct extending along the tunnel for cooling the molded thermoplastic, the cooling air being divided from the blow molding air by a baffle. Each mold assembly further comprises an air distributing duct extending along the return run of the endless track and positioned to distribute cooling air to the exposed interior faces of the mold blocks.
REFERENCES:
patent: 2035188 (1936-03-01), Quick
patent: 2365804 (1944-12-01), Clerke
patent: 2460566 (1949-01-01), Brown et al.
patent: 3188690 (1965-06-01), Zieg
patent: 3280430 (1966-10-01), Antrobus
patent: 3286305 (1966-11-01), Seckel
patent: 3430292 (1969-03-01), Bauman et al.
patent: 3488809 (1970-01-01), James
patent: 3677676 (1972-07-01), Hegler
patent: 3705779 (1972-12-01), Zon
patent: 3743456 (1973-07-01), Cini
patent: 3751541 (1973-08-01), Hegler
patent: 3764250 (1973-10-01), Waterloo
patent: 3832429 (1974-08-01), Charpentier
patent: 3835209 (1974-09-01), Karabedian
patent: 3836298 (1974-09-01), Ernst
patent: 3885901 (1975-05-01), Reiners
Husar Francis S.
Rowold Carl
LandOfFree
Apparatus for making high speed corrugated plastic tubing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for making high speed corrugated plastic tubing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for making high speed corrugated plastic tubing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1411135