Plunger, pump, and liquid analysis device
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United States of America Patent
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-
Mar 5, 2024
Grant Date -
Nov 17, 2022
app pub date -
Dec 25, 2020
filing date -
Dec 27, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
The plunger of the present disclosure includes: a plunger main body section that is made of sapphire, has a pillar shape, and includes a non-penetrating fitting hole extending in a central axis direction from one end portion; a core portion that is inserted into the fitting hole and has a higher thermal conductivity than sapphire; and a joint layer that is interposed between an inner peripheral surface and a bottom surface of the fitting hole of the plunger main body section, and an outer peripheral surface and a tip surface of the core portion, the joint layer being configured to bond the plunger main body section and the core portion. A pump includes the plunger. A liquid analysis device includes the pump.
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