Mass flowmeter with hermetically sealed housing
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United States of America Patent
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May 10, 1994
Grant Date -
N/A
app pub date -
Nov 19, 1990
filing date -
Nov 27, 1989
priority date (Note) -
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Abstract
A mass flow meter includes a housing body having a fluid passageway extending therethrough with a capillary tube communicating with the fluid passageway. The capillary tube is connected through a pair of metallic sleeves mounted on a base member which in turn is fastened to the housing body. A pair of sensor coils is connected to the capillary tube to measure any fluid flow. A metal sensor case is welded airtight to the base member to encapsulate the capillary tube.
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