Process for the production of blisters

Details Process for the production of blisters Process for the production of blisters

1980-12-29

1983-10-18

Crosby, Gene

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72350, B21D 2604

Patent

active

044098081

ABSTRACT:
The invention concerns a process and device for the manufacture of blisters with high barrier properties using metal-plastic composite foils which can be deep drawn, in particular an aluminum-plastic composite foil which is clamped firmly in the clamping facility of a device for manufacturing blisters. The process is such that the composite foil is pre-stretched in a first step and then shaped into a blister in a second step.

REFERENCES:
patent: 1625914 (1927-04-01), Seibt
patent: 3572071 (1971-03-01), Semplak
patent: 3623347 (1971-11-01), Burk
patent: 3769824 (1973-11-01), Granzow
patent: 3914969 (1975-10-01), Banks
patent: 4045986 (1977-09-01), Laycock

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