Liquid supply apparatus, liquid discharge apparatus, and three-dimensional fabricating apparatus
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United States of America Patent
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Nov 26, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jun 23, 2017
filing date -
Jul 25, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A liquid supply apparatus includes a liquid container to temporarily store liquid, a vacuum device connected to the liquid container to decompress the liquid container to form a negative pressure in the liquid container and a negative pressure forming device disposed between the liquid container and the vacuum device. The vacuum device includes a gas chamber connected to the liquid container, a flexible member forming a part of wall surface of the gas chamber, a first elastic member to push the flexible member in a first direction to expand the gas chamber, a pressing member to push the flexible member in a second direction opposite the first direction to compress the gas chamber. The gas chamber moves between a connection position and a cutoff position.
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