Method and apparatus for cleaning containers to be sealed and containing a filler from oxygen gas

a technology of oxygen gas and filler, which is applied in the direction of packaging, packaging protection, packaging under special atmospheric conditions, etc., can solve the problem of very time-consuming process and achieve the effect of rapid production

Inactive Publication Date: 2007-03-22
LEHMANN MARTIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] Therefore, a goal of the invention is to create a method and an apparatus that does not have the disadvantages mentioned above. A method and an according apparatus shall be provided, which allows for a rapid production of filled sealed containers containing little Oxygen gas.

Problems solved by technology

Such a process is very time-consuming and requrires to take said large number of containers out of the process chain.

Method used

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  • Method and apparatus for cleaning containers to be sealed and containing a filler from oxygen gas
  • Method and apparatus for cleaning containers to be sealed and containing a filler from oxygen gas
  • Method and apparatus for cleaning containers to be sealed and containing a filler from oxygen gas

Examples

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Embodiment Construction

[0106]FIG. 1 shows a schematic cross-section of a detail of an apparatus for cleaning filled containers. A container 1 containing a liquid filler 2, e.g., an aqueous solution of a drug, which is sensitive to oxidation, is helt in a holder 11 of a conveyor 11. The small arrows indicate the directions of movement of container 1 and conveyor 10. On top of the container a temporary seal 15 has been placed, e.g., a cap with rubber lips. Through a gas line 7, in which a valve 6 is arranged, gas, typically ambient gas, contained in the container 1, can be removed from the container 1 by means of a pump 5. By means of this evacuation, a pressure p in the container 1 is reduced to about 50 mbar. Thereupon, Nitrogen gas 3 from a gas cylinder 4 is filled into the container via a gas line 9 in which a valve 8 is arranged. Either then the container 1 is sealed by means of a sealing apparatus 20 having a flame 21 (sealing by melting), or the container 1 is sealed after another evacuation of the c...

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Abstract

The method of manufacturing a sealed container for containing a non-gaseous filler, which filler is to be protected from Oxygen gas, comprises the following steps in the indicated sequence: 1.) filling said filler into said container; 2.) evacuating said container substantially without evaporating parts of said filler; 3.) filling Nitrogen gas into said container; 4.) sealing the container. The method can be used in-line. The apparatus for cleaning filled containers containing a non-gaseous filler, comprises at least one holder for holding said containers; at least one pump adapted for evacuating said containers; a Nitrogen reservoir for supplying Nitrogen gas to be filled into said containers; a process control unit adapted to allowing for an evacuation of said containers by means of said at least one pump and subsequentially filling said Nitrogen gas into said containers.

Description

TECHNICAL FIELD [0001] The invention relates to the packaging of chemical or pharmaceutical products in sealed containers. It relates to a method and apparatuses according to the opening clauses of the claims. Such devices and methods find application, e.g., in the chemical and in the pharmaceutical industry. The invention resulted from the desire for a rapid way to produce vials or like containers, which contain a non-gaseous filler and shall contain only a low amount of Oxygen gas. BACKGROUND OF THE INVENTION [0002] Many chemical and pharmaceutical products are oxidation-sensitive, i.e., they change properties when oxidized, e.g., through exposure to Oxygen gas. Therefore, such substances are often contained in sealed containers, like vials, so as to avoid a contact of the substance with the environment, in particular to Oxygen in the air. Typical amounts of Oxygen that are acceptable are of the order of 1% by volume. [0003] Often, single-portion containers, e.g., containing as mu...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65B31/00
CPCB65B31/025
Inventor LEHMANN, MARTIN
Owner LEHMANN MARTIN
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