Method and apparatus for filling a rigid closed volume through a

Details Method and apparatus for filling a rigid closed volume through a Method and apparatus for filling a rigid closed volume through a

1998-05-07

2000-11-21

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41S 2175

Patent

active

061492663

ABSTRACT:
A container having a fixed volume sealed from the atmosphere by an elastic septum is filled with liquid via a needle inserted through the septum, the needle providing a path for liquid flow into the fixed volume from an external source through the septum and a path for air flow from the fixed volume to atmosphere through the septum. The needle includes a stem having a hollow tube with a non-cylindrical section and a cover element cooperating with the non-cylindrical section of the tube to form an air passage and give the stem a cylindrical configuration even in the region of the non-cylindrical section of the tube. The configuration of the stem minimizes damage to the septum as the stem is inserted through or withdrawn from a septum, while the air passage permits air to exit from the container through the stem as liquid enters the container through the tube.

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patent: 5629727 (1997-05-01), Erickson
patent: 5686947 (1997-11-01), Murray et al.

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