Ink cartridge
AssigneeCanon Kabushiki Kaisha
InventorsTakeho Miyashita, Yasuo Kotaki, Tetsuya Ohashi, Ryoji Inoue, Takashi Fukushima, Hironori Murakami, Kyosuke Nagaoka, Kenichi Kanno
Life of this patent
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Abstract
An ink cartridge storing ink inside the ink cartridge including an ink flow path extending from the inside where the ink is stored to outside of the ink cartridge, wherein the ink flow path includes a first opening that opens toward the outside, a second opening that opens to an opposite side of the first opening, a first valve configured to seal the first opening, a second valve configured to seal the second opening, and a biasing member connected to the first and second valves and configured to bias the first and second valves.
Claims11
A valve mechanism configured to be attached to a liquid flow path connecting an inside and an outside of a container containing a liquid, the valve mechanism comprising:
- a first opening;
- a second opening that opens to a side opposite of the first opening;
- a first valve configured to seal the first opening;
- a second valve provided independently of the first valve and configured to seal the second opening;
- and
- a biasing member;
- wherein the first valve is disposed in a space between the first opening and the second opening and seals the first opening from an inside of the space toward an outside,
- wherein the second valve is disposed in the space between the first opening and the second opening and seals the second opening from the inside of the space toward the outside,
- wherein the biasing member biases the first valve from the inside of the space toward the first opening and biases the second valve from the inside of the space toward the second opening, and
- wherein the first valve and the second valve open and close independently for the respective openings.
Dependencies are inferred from the claim text.