Patent ID: 9322689
Filing Date: 2016-04-26
CPC Classification: G01F

Claim Text:
1. A flowmeter for detecting gas flow rates in a pipe comprising: a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses that extend through the container and a plurality of housings, each recess having one housing of the plurality of housings, each housing having a pressure containing window which acts as a pressure barier and hermetic seal to gas in the pipe and which is nearly acoustically transparent; a plurality of transducers, with one transducer of the plurality of transducers disposed in each housing in each recess, the transducers transmitting ultrasonic signals through the windows into and receiving ultrasonic signals through the windows from the channel; acoustic isolators disposed about the housing along the housing's length and between the housings and the container, each isolator in contact with the housing and the container which acoustically isolate the housings from the container; and a controller in electrical communication with the plurality of transducers which determines the gas flow rate through the channel by measuring transit times of signals transmitted by and received by the transducers.