Method of forming thermoplastic containers

Details Method of forming thermoplastic containers Method of forming thermoplastic containers

1976-01-30

1978-03-14

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

264 90, 264 93, 264 98, 264296, 264327, 264DIG41, 425525, 425530, B29C 1707

Patent

active

040791114

ABSTRACT:
Method of forming a container in a collapsed or folded configuration from a thermoplastic material. A preform is made from an extruded tube of thermoplastic material in a preform mold. The preform is then transferred to a deformation mold. The preform has a skin of relatively cool material on its exterior and interior surfaces; however, the interior of the walls between the skins is still in a deformable state. In the deformation mold, the preform is collapsed or folded and held in such condition until the interior material in the walls has become set. This leaves the container so formed with a memory in the folded state. When filled, the container may be elongated beyond the folded state dimensions, but will try to return to that state as the contents are dispensed as a result of the formed-in memory.

REFERENCES:
patent: 3271490 (1966-09-01), Cattaneo
patent: 3494509 (1970-02-01), McGuire
patent: 3714311 (1973-01-01), Stefanka
patent: 3764644 (1973-10-01), Robinson
patent: 3819789 (1974-06-01), Parker
patent: 3826409 (1974-07-01), Chilcoate
patent: 3860683 (1975-01-01), Ward

Affiliated with

Also associated with

Rating

Method of forming thermoplastic containers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of forming thermoplastic containers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming thermoplastic containers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2230741