Liquid container, ink jet cartridge having same and manufacturing method of the container
AssigneeCanon Kabushiki Kaisha
InventorsToshiaki Sasaki, Hidehisa Matsumoto, Hiroaki Mihara
Life of this patent
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Abstract
A liquid container includes a generally prism-like casing having a substantial air vent and having a corner portion formed by extensions of three sides of the prism configuration; an inner shell for containing liquid therein, the inner shell having outside equivalent or similar to inside of the casing; a liquid supply portion for supplying the liquid to outside from the liquid containing portion; a pinch-off portion where the inner shell is pinched by the casing; an integral portion where a maximum area side of the inner shell is integral with a side of the inner shell opposite therefrom.
Claims19
A liquid container for containing liquid for ink jet recording and for supplying the liquid to outside with a negative pressure, comprising:
- a generally prism-like casing having a substantial air vent and having a corner portion formed by extensions of three sides of the prism-like casing;
- an inner shell for containing liquid therein, said inner shell having outside equivalent or similar to inside of said casing;
- a liquid supply portion for supplying the liquid from said inner shell to an outside thereof for ink jet recording;
- a pinch-off portion where said inner shell is pinched by said casing;
- wherein said casing and said inner shell have respective substantially flat maximum area sides which do not have said liquid supply portion or said pinch-off portion;
- and
- a deformation confinement member provided on said maximum area side of said inner shell except for a marginal portion thereof.
A liquid container for containing liquid for ink let recording and for supplying the liquid to outside with a negative pressure, comprising:
- a generally prism-like liquid containing member for containing liquid therein, said liquid containing member having a substantial air vent and having a corner portion formed by extensions of three sides of the liquid containing member;
- a corner portion enclosing member for regulating movement of a corner portion of said liquid containing member within a range in which a configuration of the corner portion is maintained when said liquid containing member is deformed;
- and
- a liquid supply port for supplying to an outside the liquid from said liquid containing member to an outside thereof for ink jet recording;
- wherein said liquid containing member has a maximum area side which does not have said liquid supply port, and has a deformation confinement member on said maximum area side except for a marginal portion thereof.
Dependencies are inferred from the claim text.