Method for producing containers from thermoplastic sheet materia

Details Method for producing containers from thermoplastic sheet materia Method for producing containers from thermoplastic sheet materia

1981-03-10

1983-08-09

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Stretching or stretch forming

264522, 264549, 264550, 4253871, 425388, B29C 1704

Patent

active

043978045

ABSTRACT:
A method of and an apparatus for producing containers from thermoplastic sheet material are disclosed. The sheet material is heated to its plastic state and clamped at its periphery. Then a moulding die is advanced substantially normally towards and against the clamped heated sheet material. The moulding die has a temperature below the temperature of the heated clamped sheet material and is provided with a projecting peripheral portion and/or a recessed central portion directed towards the sheet material. By further advancing the moulding die by a predetermined amount against the sheet material, this is deformed and shaped into the desired container. A cooling air flow is directed against the clamped heated sheet material in a region thereof adjacent to the peripheral portion of the moulding die to avoid reduced wall thickness at the edge and corner regions of the container by excessive stretching of the sheet material. Thus, stable containers of uniform wall thickness may be produced.

REFERENCES:
patent: 3121767 (1964-02-01), Welshon
patent: 3482281 (1969-12-01), Thiel
patent: 3966860 (1976-06-01), Hudson et al.
patent: 4155697 (1979-05-01), Gordon et al.

Affiliated with

Also associated with

Rating

Method for producing containers from thermoplastic sheet materia 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 for producing containers from thermoplastic sheet materia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing containers from thermoplastic sheet materia will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-586562