Mass flowmeter with hermetically sealed housing

Details Mass flowmeter with hermetically sealed housing Mass flowmeter with hermetically sealed housing

1990-11-19

1994-05-10

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

732025, G01F 168

Patent

active

053097629

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.

REFERENCES:
patent: 2594618 (1992-04-01), Booth, Jr.
patent: 3187569 (1965-06-01), Los
patent: 3827299 (1974-08-01), Welland
patent: 4487062 (1984-12-01), Olin et al.
patent: 4548075 (1985-10-01), Mariano
patent: 4921005 (1990-05-01), Ohmi et al.
patent: 4949578 (1990-08-01), Harpster

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