Fluid flow detector

Details Fluid flow detector Fluid flow detector

2009-08-17

2011-11-22

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

C604S246000, C073S861520

Reexamination Certificate

active

08061218

ABSTRACT:
An upstream hole is formed at the upstream end of a detector main body of a liquid flow detector for detecting liquid flow, and a downstream hole is formed at the downstream end, with a liquid flow channel comprising a liquid flow detection channel, discharge channel, and, optionally, intermediate flow channel, being formed between the upstream hole and downstream hole. A mobile body which is optionally, spherical, moves with the flow of liquid, and is arranged inside the liquid flow channel. The diameter of the liquid flow detection channel is smaller than the diameter of the discharge channel, and the diameter of the mobile body is slightly smaller than the diameter of the liquid flow detection channel. The shape of the peripheral edge part of the upstream hole and the downstream hole is optionally elliptical.

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Extended European search report of Jan. 7, 2010.

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