Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Wayne W. Sharp0
Dhan Lord B. Fortela0
Kyle S. Farmer0
Nicholas S. Marcil0
Date of Patent
February 18, 2020
0Patent Application Number
161680590
Date Filed
October 23, 2018
0Patent Primary Examiner
Patent abstract
The invention is a gas flowmeter that produces precise flow measurements at low-flowrate ranges (for example, between 0.25 mL/min to 5,000 mL/min). It uses an infrared (“IR”) beam to detect the passing of a gas bubble through a liquid within a glass column. A “broken” beam is detected by the microcontroller for each passing of a bubble. This ability to allow the IR beam to be broken exactly at the passing of a bubble is made possible by the slit-over-slit design at the sides of the glass column and the column holder.
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