Method of making tubular vials and ampules

Details Method of making tubular vials and ampules Method of making tubular vials and ampules

1983-11-16

1985-05-14

Lindsay, Robert

Glass manufacturing

Processes

Reshaping or surface deformation of glass preform

65110, 65292, 65295, C03B 2312

Patent

active

045169985

ABSTRACT:
The present invention relates to a new method of making tubular vials and ampules from glass tubing. The method according to this invention is essentially characterized in that the glass tubing used is closed at both ends and has a dot-shaped opening close to one of the sealed ends. The opening can be sealed by a film to prevent impurities from entering the glass tubing. Throughout the operational process in the production of vials and ampules, a slight excess pressure exists in the glass tubing by applying heat, which further prevents impurities from entering the glass tubing.

REFERENCES:
patent: 3375948 (1968-04-01), Creevy et al.
patent: 3923487 (1975-12-01), Lewis

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