United States Patent
No. 6,012,340
Date of Patent: January 11, 2000
The present invention
provides an improved insertion-type fluid flowmeter for measuring the flow
rate of a fluid flowing through a conduit, wherein the flowmeter incorporates
a strut-mounted rotor having just one or two blades such that it can rotate
through a circular area of diameter substantially larger than the maximum
dimension of an opening in the conduit wall through which the strut extends.
This minimizes the size of the opening which simplifies its sealing. In
addition, the support and the strut are configured such that the strut
is releasably secured to the support by a snap fit to facilitate a convenient
replacement of the strut and attached rotor as the need might arise. The
flowmeter further incorporates a special set of ring-shaped spacers to
facilitate a convenient adjustment of the distance by which the strut projects
into the conduit.
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