Flow-velocity measuring device

Details Flow-velocity measuring device Flow-velocity measuring device

2007-10-23

2007-10-23

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

Proportional

Reexamination Certificate

active

11291699

ABSTRACT:
A flow-velocity measuring device of a simple structure in which the size in the direction of flow of a measured fluid is small and the size of a surface area for blocking the flow of the measured fluid is small includes: an inlet port formed on a surface of a main body and opening toward the upstream of a measured fluid; an introducing channel extending in the main body from the inlet port; a branch channel branched from the introducing channel and connected at a terminal end thereof to a first discharge port opening on the surface of the main body; a discharge channel extending from the introducing channel and connected at a terminal end thereof to a second discharge port opening on the surface of the main body; and a sensor element provided in the branch channel or in a measuring channel further branched from the branch channel and connected at a terminal end thereof to a third discharge port opening on the surface of the main body, and at least any one of the discharge channel, the introducing channel, the branch channel, and the measuring channel comprises a part overlapped with other flow channels in the direction at a right angle with respect to the direction of flow of the introducing channel and the direction of flow of the branch channel at a branch point from the introducing channel to the branch channel.

REFERENCES:
patent: 4215565 (1980-08-01), Zanker
patent: 4457169 (1984-07-01), Lauterbach et al.
patent: 4914947 (1990-04-01), Davidson
patent: 0 369 592 (1990-05-01), None
patent: 1 091 195 (2001-04-01), None
patent: 1 568 999 (2005-08-01), None
patent: 3124457 (1991-05-01), None
European Search Report dated Jul. 13, 2006 (6 pages).

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