Measuring and testing – Volume or rate of flow – Proportional
Patent
1996-08-01
1998-06-09
Chilcot, Richard
Measuring and testing
Volume or rate of flow
Proportional
G01F 500
Patent
active
057637741
ABSTRACT:
A flow meter is adapted to measure the flow rate of a fluid flowing in the interior of a sensing conduit. The flow meter includes one sensor element disposed along the flow path of the fluid externally of the sensing conduit closer to one fluid flow port of the conduit, another sensor element disposed along the flow path of the fluid externally of the sensing conduit closer to the other fluid flow port of the conduit, an elongated structure disposed along the flow path of the fluid internally of the sensing conduit and away from the two sensor elements for reducing the fluid flow space in the sensing conduit, apparatus for heating the sensor elements, and apparatus for detecting a temperature differential between the sensor elements. The elongated structure has an end that engages the sensing conduit at a fluid flow port. The elongated structure may be a wire that is pre-bent or straight prior to its insertion into the sensing conduit, or may be a tube.
REFERENCES:
patent: 3559482 (1971-02-01), Baker et al.
patent: 3938384 (1976-02-01), Blair
patent: 4056975 (1977-11-01), Lemay
patent: 4800754 (1989-01-01), Korpi
patent: 5191793 (1993-03-01), Drexel et al.
patent: 5228338 (1993-07-01), Saghatchi
Blair Richard F.
Ha Don Dongcho
Yamasaki Jiro
Artis Jewel
Chilcot Richard
Millipore Corporation
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