Patent ID: 9664544
Date: 2017-05-30
CPC Classifications: G01F,Y10T

Claim:
1. A flowmeter of the thermal type, having a heated flow-sensing element and a temperature-sensing reference element, the elements constructed and arranged to be installed in a pressurized pipe, comprising: one probe with the heated element; a separate second probe with the reference element; wherein the probes are constructed and arranged to pass through the pipe wall in separate through-holes; a mechanical mounting structure that is adapted to be mounted to the pipe; a base plate mounted on the mounting structure; and two valves operatively coupled to separate locations of the mounting structure, where one probe passes through each valve and into the pipe; wherein the base plate has two spaced probe-receiving holes passing therethrough from top to bottom, where the valves each comprise a hole that can be selectively aligned and misaligned with a probe-receiving hole in the base plate, and wherein the mechanical mounting structure has two spaced probe-receiving holes passing therethrough from top to bottom and that are aligned with the probe-receiving holes in the base plate.