Gas detection flow rate controller
US10077995B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2017 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Jul 27, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2238
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow rate control apparatus includes an adjustable valve receiving a flow of a gas. A conduit has a first end coupled to the valve. The conduit includes a translucent or transparent portion thereof whose longitudinal axis is adapted to be aligned with a force of gravity with a visual scale being disposed on the translucent/transparent portion. The visual scale is indicative of gas flow rates moving through the conduit. A ball disposed in the translucent/transparent portion has an outer diameter that is less than an inner diameter of the translucent/transparent portion. A tube support, coupled to the second end of the conduit, is adapted to hold a gas detection tube wherein the gas flow flowing around the ball is introduced into the gas detection tube from the second end of the conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.