Gas meter contamination filtering device

US11181412B2 · kind B2 · utility

Assignee

• Itron Global SARL · US

Inventors

• Christian Haag · Assamstadt, DE
• Pierre Roesch · Philippsburg, DE
• Tobias Kirsten · Blankenloch, DE

Key dates

• Filing date: Nov 8, 2019
• Grant date: Nov 23, 2021
• Expiry date: May 27, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F15/185
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A decontamination device removes particles from a gas flow and is usable in a gas metering device. The decontamination device may include an upper portion defining a plurality of openings and a lower portion attached to the upper portion. In an example, the lower portion includes a first curved ramp to redirect the gas flow and a plurality of fingers in a path of the redirected gas flow. First and second flow pipes receive incoming gas and bifurcate the gas flow, which is redirected at the first curved ramp. The fingers contact and remove particles in the redirected gas flow. A second curved ramp may include at least one hole to bifurcate the gas flow into a first gas flow passing through the at least one hole and a second gas flow redirected by the second curved ramp to pass through the plurality of openings defined in the upper portion.