RUPTURE SEAL Russian patent published in 2010 - IPC B41J2/175 

FIELD: polygraphic industry.

SUBSTANCE: reservoir for liquid storage comprises jacket that defines closed chamber, besides jacket has the first hole in it in one part of chamber and the second hole in it in the second part of chamber over the first part of chamber, rupture seal, sealing second hole and comprising plug that plugs the second hole, besides plug is configured so that the first force is required to push the plug into the second hole, and the second force is required, which is less than the first force, to push the plug out of the second hole, and roundabout tunnel that exposes chamber to atmospheric impact via the second hole, if seal is broken. Seal comprises passage, ball that blocks passage, the first narrower section of passage on one side of ball, the second narrower section of passage on the other side of ball, besides the first section is configured so that the first force is required to push the ball out beyond the limits of the first section of passage, and the second section is configured so that the second force is required, which is less than the first force, to push ball out beyond the limits of the second section of passage.

EFFECT: development of rupture seal for use as ventilation hole sealing in replacement cartridges for ink supply.

15 cl, 16 dwg